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Posted to notifications@asterixdb.apache.org by "Luo Chen (Code Review)" <de...@asterixdb.apache.org> on 2019/06/26 05:09:53 UTC

Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Luo Chen has uploaded this change for review. ( https://asterix-gerrit.ics.uci.edu/3463


Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................

[ASTERIXDB-2600] Introduce ConcurrentMergePolicy

- user model changes: yes. Add a new merge policy and make it as default
- storage format changes: no.
- interface changes: no.

Details:
- Introduce ConcurrentMergePolicy that performs concurrent merges
without the maximum component size.
- Make this merge policy as the default merge policy in AsterixDB since
the PrefixMergePolicy has made some wrong design decisions.

Change-Id: I2ed79847584b9fe846d62ad56ee094863538a2a2
---
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
M asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
M asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
A hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
12 files changed, 792 insertions(+), 7 deletions(-)



  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb refs/changes/63/3463/1

diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
new file mode 100644
index 0000000..b25ad66
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description     : This test is intended to test the compact statement which merge the disk components of a dataset and
+ * all of its indexes using the concurrent merge policy.
+ * Expected Result : Success
+ * Date            : June 25 2019
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.LineItemType as
+ closed {
+  l_orderkey : bigint,
+  l_partkey : bigint,
+  l_suppkey : bigint,
+  l_linenumber : bigint,
+  l_quantity : bigint,
+  l_extendedprice : double,
+  l_discount : double,
+  l_tax : double,
+  l_returnflag : string,
+  l_linestatus : string,
+  l_shipdate : string,
+  l_commitdate : string,
+  l_receiptdate : string,
+  l_shipinstruct : string,
+  l_shipmode : string,
+  l_comment : string
+};
+
+create  dataset LineItem(LineItemType) primary key l_orderkey,l_linenumber
+with {
+  "merge-policy": {
+    "name": "prefix",
+    "parameters": { 
+        "size-ratio": 1.2,
+        "max-component-count": 10,
+        "min-merge-component-count":2,
+        "max-merge-component-count":5
+    }
+  }
+};
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
new file mode 100644
index 0000000..546a831
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
@@ -0,0 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+load  dataset LineItem using localfs ((`path`=`asterix_nc1://data/tpch0.001/lineitem.tbl`),(`format`=`delimited-text`),(`delimiter`=`|`)) pre-sorted;
+
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
new file mode 100644
index 0000000..cb40111
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+create  index idx_LineItem_partkey  on LineItem (l_linenumber) type btree;
+
+create  index idx_LineItem_suppkey  on LineItem (l_suppkey) type btree;
+
+create  primary index sec_primary_idx  on LineItem;
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
new file mode 100644
index 0000000..2dd6408
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
@@ -0,0 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+delete from LineItem
+ where l_suppkey >= 2 or l_linenumber > 1;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
new file mode 100644
index 0000000..5295e7e
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element c
+from  LineItem as c
+where (c.l_suppkey < 150)
+order by c.l_orderkey,c.l_linenumber
+;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
new file mode 100644
index 0000000..199ac15
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
@@ -0,0 +1,167 @@
+{ "l_orderkey": 36, "l_partkey": 120, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 42, "l_extendedprice": 42845.04, "l_discount": 0.09, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-03", "l_commitdate": "1996-01-21", "l_receiptdate": "1996-02-23", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": " careful courts. special " }
+{ "l_orderkey": 68, "l_partkey": 8, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 3, "l_extendedprice": 2724.0, "l_discount": 0.05, "l_tax": 0.02, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-07-04", "l_commitdate": "1998-06-05", "l_receiptdate": "1998-07-21", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "fully special instructions cajole. furious" }
+{ "l_orderkey": 162, "l_partkey": 190, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 2, "l_extendedprice": 2180.38, "l_discount": 0.02, "l_tax": 0.01, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-02", "l_commitdate": "1995-06-17", "l_receiptdate": "1995-09-08", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "es! final somas integrate" }
+{ "l_orderkey": 192, "l_partkey": 98, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 23, "l_extendedprice": 22956.07, "l_discount": 0.0, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-02-05", "l_commitdate": "1998-02-06", "l_receiptdate": "1998-03-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "ly pending theodolites haggle quickly fluf" }
+{ "l_orderkey": 197, "l_partkey": 99, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 39, "l_extendedprice": 38964.51, "l_discount": 0.02, "l_tax": 0.04, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-21", "l_commitdate": "1995-07-01", "l_receiptdate": "1995-08-14", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "press accounts. daringly sp" }
+{ "l_orderkey": 227, "l_partkey": 166, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 19, "l_extendedprice": 20257.04, "l_discount": 0.05, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-10", "l_commitdate": "1996-01-30", "l_receiptdate": "1995-12-26", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "s cajole furiously a" }
+{ "l_orderkey": 290, "l_partkey": 6, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 35, "l_extendedprice": 31710.0, "l_discount": 0.01, "l_tax": 0.02, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-04-01", "l_commitdate": "1994-02-05", "l_receiptdate": "1994-04-27", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "ove the final foxes detect slyly fluffily" }
+{ "l_orderkey": 325, "l_partkey": 159, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 34, "l_extendedprice": 36011.1, "l_discount": 0.09, "l_tax": 0.04, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-10-28", "l_commitdate": "1993-12-13", "l_receiptdate": "1993-11-17", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ly bold deposits. always iron" }
+{ "l_orderkey": 355, "l_partkey": 114, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 31, "l_extendedprice": 31437.41, "l_discount": 0.09, "l_tax": 0.07, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-07-13", "l_commitdate": "1994-08-18", "l_receiptdate": "1994-07-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "y unusual, ironic" }
+{ "l_orderkey": 389, "l_partkey": 190, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 2, "l_extendedprice": 2180.38, "l_discount": 0.09, "l_tax": 0.0, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-04-13", "l_commitdate": "1994-04-10", "l_receiptdate": "1994-04-25", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "fts. courts eat blithely even dependenc" }
+{ "l_orderkey": 391, "l_partkey": 122, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 14, "l_extendedprice": 14309.68, "l_discount": 0.09, "l_tax": 0.02, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-02-11", "l_commitdate": "1995-02-03", "l_receiptdate": "1995-02-13", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": " escapades sleep furiously about " }
+{ "l_orderkey": 417, "l_partkey": 40, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 39, "l_extendedprice": 36661.56, "l_discount": 0.01, "l_tax": 0.02, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-05-31", "l_commitdate": "1994-05-02", "l_receiptdate": "1994-06-06", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "y regular requests wake along " }
+{ "l_orderkey": 453, "l_partkey": 198, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 45, "l_extendedprice": 49418.55, "l_discount": 0.01, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-30", "l_commitdate": "1997-08-20", "l_receiptdate": "1997-07-19", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "ifts wake carefully." }
+{ "l_orderkey": 485, "l_partkey": 150, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 50, "l_extendedprice": 52507.5, "l_discount": 0.01, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-03-28", "l_commitdate": "1997-05-26", "l_receiptdate": "1997-04-18", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "iously quick excuses. carefully final f" }
+{ "l_orderkey": 545, "l_partkey": 170, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 4, "l_extendedprice": 4280.68, "l_discount": 0.02, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-23", "l_commitdate": "1995-12-16", "l_receiptdate": "1996-03-21", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": ", ironic grouches cajole over" }
+{ "l_orderkey": 581, "l_partkey": 64, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41, "l_extendedprice": 39526.46, "l_discount": 0.09, "l_tax": 0.07, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-26", "l_commitdate": "1997-04-06", "l_receiptdate": "1997-06-10", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "nts. quickly" }
+{ "l_orderkey": 647, "l_partkey": 17, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41, "l_extendedprice": 37597.41, "l_discount": 0.08, "l_tax": 0.08, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-11-19", "l_commitdate": "1997-09-24", "l_receiptdate": "1997-12-15", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "r instructions. quickly unusu" }
+{ "l_orderkey": 704, "l_partkey": 190, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 40, "l_extendedprice": 43607.6, "l_discount": 0.05, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-30", "l_commitdate": "1997-01-10", "l_receiptdate": "1997-02-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "ggle quickly. r" }
+{ "l_orderkey": 738, "l_partkey": 198, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 34, "l_extendedprice": 37338.46, "l_discount": 0.0, "l_tax": 0.06, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-06-09", "l_commitdate": "1993-04-15", "l_receiptdate": "1993-07-09", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "s against the ironic exc" }
+{ "l_orderkey": 773, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 5, "l_extendedprice": 5000.5, "l_discount": 0.06, "l_tax": 0.04, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-11-21", "l_commitdate": "1993-12-19", "l_receiptdate": "1993-12-21", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ar requests. regular, thin packages u" }
+{ "l_orderkey": 800, "l_partkey": 72, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 38, "l_extendedprice": 36938.66, "l_discount": 0.0, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-07-21", "l_commitdate": "1998-09-25", "l_receiptdate": "1998-08-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "according to the bold, final dependencies " }
+{ "l_orderkey": 900, "l_partkey": 199, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 44, "l_extendedprice": 48364.36, "l_discount": 0.01, "l_tax": 0.06, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-12-15", "l_commitdate": "1994-12-03", "l_receiptdate": "1994-12-27", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": " detect quick" }
+{ "l_orderkey": 931, "l_partkey": 40, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 18, "l_extendedprice": 16920.72, "l_discount": 0.0, "l_tax": 0.05, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-04-04", "l_commitdate": "1993-01-11", "l_receiptdate": "1993-04-13", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "slyly ironic re" }
+{ "l_orderkey": 932, "l_partkey": 44, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41, "l_extendedprice": 38705.64, "l_discount": 0.01, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-05", "l_commitdate": "1997-07-22", "l_receiptdate": "1997-06-26", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "foxes. ironic pl" }
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+{ "l_orderkey": 2694, "l_partkey": 153, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 30, "l_extendedprice": 31594.5, "l_discount": 0.02, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-20", "l_commitdate": "1996-06-01", "l_receiptdate": "1996-07-15", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "oxes. never iro" }
+{ "l_orderkey": 2759, "l_partkey": 59, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 10, "l_extendedprice": 9590.5, "l_discount": 0.1, "l_tax": 0.03, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-12-14", "l_commitdate": "1994-01-08", "l_receiptdate": "1994-01-01", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "s. busily ironic theodo" }
+{ "l_orderkey": 2819, "l_partkey": 70, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 17, "l_extendedprice": 16491.19, "l_discount": 0.08, "l_tax": 0.08, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-07-16", "l_commitdate": "1994-07-15", "l_receiptdate": "1994-07-17", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "en deposits above the f" }
+{ "l_orderkey": 2850, "l_partkey": 97, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 43, "l_extendedprice": 42874.87, "l_discount": 0.02, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-11", "l_commitdate": "1996-11-03", "l_receiptdate": "1997-02-01", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "unusual accounts" }
+{ "l_orderkey": 2886, "l_partkey": 60, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 1, "l_extendedprice": 960.06, "l_discount": 0.09, "l_tax": 0.05, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-02-01", "l_commitdate": "1994-12-18", "l_receiptdate": "1995-02-28", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "eposits fr" }
+{ "l_orderkey": 2912, "l_partkey": 122, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 8, "l_extendedprice": 8176.96, "l_discount": 0.06, "l_tax": 0.04, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-04-09", "l_commitdate": "1992-04-19", "l_receiptdate": "1992-04-26", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "hs cajole over the slyl" }
+{ "l_orderkey": 2944, "l_partkey": 120, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 44, "l_extendedprice": 44885.28, "l_discount": 0.08, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-12-25", "l_commitdate": "1997-10-28", "l_receiptdate": "1998-01-21", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "ickly special theodolit" }
+{ "l_orderkey": 2947, "l_partkey": 10, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 37, "l_extendedprice": 33670.37, "l_discount": 0.09, "l_tax": 0.07, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-09", "l_commitdate": "1995-07-05", "l_receiptdate": "1995-08-20", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "e accounts: expres" }
+{ "l_orderkey": 2950, "l_partkey": 130, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 32, "l_extendedprice": 32964.16, "l_discount": 0.01, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-09-21", "l_commitdate": "1997-08-25", "l_receiptdate": "1997-10-08", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "its wake carefully slyly final ideas." }
+{ "l_orderkey": 2978, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 29, "l_extendedprice": 28712.61, "l_discount": 0.0, "l_tax": 0.08, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-06-03", "l_commitdate": "1995-07-25", "l_receiptdate": "1995-06-06", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "ecial ideas promise slyly" }
+{ "l_orderkey": 3143, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 22, "l_extendedprice": 21781.98, "l_discount": 0.02, "l_tax": 0.0, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-11", "l_commitdate": "1993-03-26", "l_receiptdate": "1993-05-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "l, special instructions nag " }
+{ "l_orderkey": 3264, "l_partkey": 200, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 39, "l_extendedprice": 42907.8, "l_discount": 0.06, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-11-07", "l_commitdate": "1996-12-12", "l_receiptdate": "1996-11-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "sleep carefully after the slyly final" }
+{ "l_orderkey": 3266, "l_partkey": 64, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 31, "l_extendedprice": 29885.86, "l_discount": 0.09, "l_tax": 0.02, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-06-19", "l_commitdate": "1995-05-04", "l_receiptdate": "1995-07-06", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "grate among the quickly express deposits" }
+{ "l_orderkey": 3270, "l_partkey": 35, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 11, "l_extendedprice": 10285.33, "l_discount": 0.07, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-07-29", "l_commitdate": "1997-08-11", "l_receiptdate": "1997-08-05", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": " solve at the regular deposits. " }
+{ "l_orderkey": 3364, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 49, "l_extendedprice": 48514.41, "l_discount": 0.03, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-09-17", "l_commitdate": "1997-08-23", "l_receiptdate": "1997-10-06", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "d accounts? caref" }
+{ "l_orderkey": 3366, "l_partkey": 40, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 4, "l_extendedprice": 3760.16, "l_discount": 0.07, "l_tax": 0.01, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-20", "l_commitdate": "1997-06-25", "l_receiptdate": "1997-06-03", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": " carefully about " }
+{ "l_orderkey": 3425, "l_partkey": 120, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 11, "l_extendedprice": 11221.32, "l_discount": 0.03, "l_tax": 0.08, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-04-24", "l_commitdate": "1996-05-29", "l_receiptdate": "1996-05-23", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "ckly final deposits use quickly?" }
+{ "l_orderkey": 3460, "l_partkey": 11, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 40, "l_extendedprice": 36440.4, "l_discount": 0.1, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-28", "l_commitdate": "1995-12-14", "l_receiptdate": "1996-01-02", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "odolites are slyly bold deposits" }
+{ "l_orderkey": 3494, "l_partkey": 117, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 40, "l_extendedprice": 40684.4, "l_discount": 0.05, "l_tax": 0.04, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-07-10", "l_commitdate": "1993-06-01", "l_receiptdate": "1993-07-25", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "lites haggle furiously about the fin" }
+{ "l_orderkey": 3520, "l_partkey": 28, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 30, "l_extendedprice": 27840.6, "l_discount": 0.04, "l_tax": 0.02, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-11-11", "l_commitdate": "1997-10-02", "l_receiptdate": "1997-12-06", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "deas should solve blithely among the ironi" }
+{ "l_orderkey": 3559, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 29, "l_extendedprice": 28712.61, "l_discount": 0.0, "l_tax": 0.07, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-12-10", "l_commitdate": "1992-12-03", "l_receiptdate": "1992-12-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "l, regular accounts wake flu" }
+{ "l_orderkey": 3585, "l_partkey": 122, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 21, "l_extendedprice": 21464.52, "l_discount": 0.05, "l_tax": 0.04, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-12-04", "l_commitdate": "1994-12-25", "l_receiptdate": "1995-01-01", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "ounts use. express, final platelets us" }
+{ "l_orderkey": 3618, "l_partkey": 140, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 38, "l_extendedprice": 39525.32, "l_discount": 0.08, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-12-22", "l_commitdate": "1998-02-23", "l_receiptdate": "1998-01-03", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "nts haggle fluffily above the regular " }
+{ "l_orderkey": 3715, "l_partkey": 97, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 13, "l_extendedprice": 12962.17, "l_discount": 0.0, "l_tax": 0.03, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-05-11", "l_commitdate": "1996-04-25", "l_receiptdate": "1996-06-09", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "e quickly ironic" }
+{ "l_orderkey": 3844, "l_partkey": 135, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 2, "l_extendedprice": 2070.26, "l_discount": 0.03, "l_tax": 0.07, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-02-24", "l_commitdate": "1995-02-03", "l_receiptdate": "1995-03-18", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "es haggle final acco" }
+{ "l_orderkey": 3878, "l_partkey": 200, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 6, "l_extendedprice": 6601.2, "l_discount": 0.07, "l_tax": 0.04, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-21", "l_commitdate": "1997-05-22", "l_receiptdate": "1997-07-01", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "s. regular instru" }
+{ "l_orderkey": 3906, "l_partkey": 153, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 42, "l_extendedprice": 44232.3, "l_discount": 0.0, "l_tax": 0.04, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-09-03", "l_commitdate": "1992-07-22", "l_receiptdate": "1992-09-04", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "jole blithely after the furiously regular " }
+{ "l_orderkey": 3974, "l_partkey": 22, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 47, "l_extendedprice": 43334.94, "l_discount": 0.1, "l_tax": 0.03, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-03", "l_commitdate": "1996-05-08", "l_receiptdate": "1996-06-28", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "dencies above the re" }
+{ "l_orderkey": 4001, "l_partkey": 106, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 26, "l_extendedprice": 26158.6, "l_discount": 0.0, "l_tax": 0.01, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-07-26", "l_commitdate": "1997-06-18", "l_receiptdate": "1997-08-08", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "tegrate blithely" }
+{ "l_orderkey": 4005, "l_partkey": 4, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 26, "l_extendedprice": 23504.0, "l_discount": 0.09, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-12-01", "l_commitdate": "1997-02-03", "l_receiptdate": "1996-12-15", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": " to the quic" }
+{ "l_orderkey": 4033, "l_partkey": 110, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 27, "l_extendedprice": 27272.97, "l_discount": 0.01, "l_tax": 0.04, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-08-08", "l_commitdate": "1993-08-14", "l_receiptdate": "1993-08-09", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "pinto beans" }
+{ "l_orderkey": 4034, "l_partkey": 190, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 48, "l_extendedprice": 52329.12, "l_discount": 0.03, "l_tax": 0.03, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-03-01", "l_commitdate": "1994-01-16", "l_receiptdate": "1994-03-16", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": " blithely regular requests play carefull" }
+{ "l_orderkey": 4036, "l_partkey": 6, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 46, "l_extendedprice": 41676.0, "l_discount": 0.09, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-21", "l_commitdate": "1997-05-29", "l_receiptdate": "1997-07-18", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "usly across the even th" }
+{ "l_orderkey": 4064, "l_partkey": 199, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 3, "l_extendedprice": 3297.57, "l_discount": 0.1, "l_tax": 0.04, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-04", "l_commitdate": "1997-01-01", "l_receiptdate": "1997-01-23", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "its! quickly sp" }
+{ "l_orderkey": 4067, "l_partkey": 180, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 18, "l_extendedprice": 19443.24, "l_discount": 0.03, "l_tax": 0.08, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-01-24", "l_commitdate": "1992-12-23", "l_receiptdate": "1993-02-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "e the slyly final packages d" }
+{ "l_orderkey": 4068, "l_partkey": 110, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 43, "l_extendedprice": 43434.73, "l_discount": 0.05, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-11-28", "l_commitdate": "1996-11-16", "l_receiptdate": "1996-12-22", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ructions. regular, special packag" }
+{ "l_orderkey": 4098, "l_partkey": 200, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 46, "l_extendedprice": 50609.2, "l_discount": 0.07, "l_tax": 0.03, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-26", "l_commitdate": "1997-01-27", "l_receiptdate": "1997-02-13", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "e slyly blithely silent deposits. fluff" }
+{ "l_orderkey": 4192, "l_partkey": 11, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 36, "l_extendedprice": 32796.36, "l_discount": 0.06, "l_tax": 0.08, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-04-25", "l_commitdate": "1998-05-26", "l_receiptdate": "1998-05-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "eodolites sleep" }
+{ "l_orderkey": 4194, "l_partkey": 197, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 43, "l_extendedprice": 47179.17, "l_discount": 0.08, "l_tax": 0.06, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-11-06", "l_commitdate": "1994-12-09", "l_receiptdate": "1994-11-16", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "olites are after the exp" }
+{ "l_orderkey": 4261, "l_partkey": 110, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 12, "l_extendedprice": 12121.32, "l_discount": 0.05, "l_tax": 0.01, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-11-01", "l_commitdate": "1993-01-01", "l_receiptdate": "1992-11-12", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "into beans " }
+{ "l_orderkey": 4418, "l_partkey": 35, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 32, "l_extendedprice": 29920.96, "l_discount": 0.02, "l_tax": 0.06, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-28", "l_commitdate": "1993-06-02", "l_receiptdate": "1993-05-30", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ly. bold pinto b" }
+{ "l_orderkey": 4422, "l_partkey": 135, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 5, "l_extendedprice": 5175.65, "l_discount": 0.09, "l_tax": 0.07, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-17", "l_commitdate": "1995-08-13", "l_receiptdate": "1995-07-25", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "e furiously about t" }
+{ "l_orderkey": 4486, "l_partkey": 135, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 46, "l_extendedprice": 47615.98, "l_discount": 0.08, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-05-02", "l_commitdate": "1998-04-05", "l_receiptdate": "1998-05-08", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ackages. specia" }
+{ "l_orderkey": 4512, "l_partkey": 162, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 30, "l_extendedprice": 31864.8, "l_discount": 0.07, "l_tax": 0.07, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-28", "l_commitdate": "1995-12-22", "l_receiptdate": "1996-02-22", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "ly unusual package" }
+{ "l_orderkey": 4513, "l_partkey": 170, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 29, "l_extendedprice": 31034.93, "l_discount": 0.03, "l_tax": 0.01, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-05-18", "l_commitdate": "1996-05-23", "l_receiptdate": "1996-06-08", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "cajole. regular packages boost. s" }
+{ "l_orderkey": 4545, "l_partkey": 173, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 38, "l_extendedprice": 40780.46, "l_discount": 0.06, "l_tax": 0.06, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-01-27", "l_commitdate": "1993-03-01", "l_receiptdate": "1993-02-04", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "nts serve according to th" }
+{ "l_orderkey": 4549, "l_partkey": 159, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 44, "l_extendedprice": 46602.6, "l_discount": 0.08, "l_tax": 0.0, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-03-13", "l_commitdate": "1998-04-15", "l_receiptdate": "1998-03-27", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "ding to the regular, silent requests" }
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+{ "l_orderkey": 5728, "l_partkey": 44, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 47, "l_extendedprice": 44369.88, "l_discount": 0.1, "l_tax": 0.05, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-12-13", "l_commitdate": "1995-01-25", "l_receiptdate": "1994-12-25", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "nd the bravely final deposits. final ideas" }
+{ "l_orderkey": 5735, "l_partkey": 60, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41, "l_extendedprice": 39362.46, "l_discount": 0.01, "l_tax": 0.01, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-12-23", "l_commitdate": "1995-02-10", "l_receiptdate": "1995-01-22", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "lthily ruthless i" }
+{ "l_orderkey": 5826, "l_partkey": 144, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 4, "l_extendedprice": 4176.56, "l_discount": 0.03, "l_tax": 0.06, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-07-31", "l_commitdate": "1998-09-10", "l_receiptdate": "1998-08-27", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": " packages across the fluffily spec" }
+{ "l_orderkey": 5829, "l_partkey": 40, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 4, "l_extendedprice": 3760.16, "l_discount": 0.01, "l_tax": 0.02, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-03-01", "l_commitdate": "1997-02-17", "l_receiptdate": "1997-03-22", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "ithely; accounts cajole ideas. regular foxe" }
+{ "l_orderkey": 5856, "l_partkey": 4, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 1, "l_extendedprice": 904.0, "l_discount": 0.03, "l_tax": 0.02, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-12-29", "l_commitdate": "1995-01-07", "l_receiptdate": "1995-01-10", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "tly. special deposits wake blithely even" }
+{ "l_orderkey": 5926, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 8, "l_extendedprice": 7920.72, "l_discount": 0.02, "l_tax": 0.0, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-07-17", "l_commitdate": "1994-07-20", "l_receiptdate": "1994-08-11", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "gle furiously express foxes. bo" }
+{ "l_orderkey": 5927, "l_partkey": 90, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 44, "l_extendedprice": 43563.96, "l_discount": 0.04, "l_tax": 0.05, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-11-29", "l_commitdate": "1997-11-21", "l_receiptdate": "1997-12-13", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "rding to the special, final decoy" }
+{ "l_orderkey": 5955, "l_partkey": 140, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 14, "l_extendedprice": 14561.96, "l_discount": 0.08, "l_tax": 0.08, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-06-22", "l_commitdate": "1995-05-23", "l_receiptdate": "1995-06-24", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": " unusual, bold theodolit" }
+{ "l_orderkey": 5959, "l_partkey": 135, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 49, "l_extendedprice": 50721.37, "l_discount": 0.07, "l_tax": 0.03, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-07-16", "l_commitdate": "1992-08-09", "l_receiptdate": "1992-08-14", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "usual packages haggle slyly pi" }
+{ "l_orderkey": 5988, "l_partkey": 172, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41, "l_extendedprice": 43958.97, "l_discount": 0.08, "l_tax": 0.03, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-01-20", "l_commitdate": "1994-02-06", "l_receiptdate": "1994-02-10", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "the pending, express reque" }
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index 282c03a..028a313 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -3594,6 +3594,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="dml">
+      <compilation-unit name="using-concurrent-merge-policy">
+        <output-dir compare="Text">using-concurrent-merge-policy</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
       <compilation-unit name="using-correlated-prefix-merge-policy">
         <output-dir compare="Text">using-correlated-prefix-merge-policy</output-dir>
       </compilation-unit>
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
index d2443e1..0207e21 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
@@ -23,6 +23,7 @@
 
 import org.apache.hyracks.storage.am.common.api.ITreeIndexFrame;
 import org.apache.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
+import org.apache.hyracks.storage.am.lsm.common.impls.ConcurrentMergePolicyFactory;
 
 /**
  * A static class that stores storage constants
@@ -41,7 +42,7 @@
     public static final String MASK_FILE_PREFIX = ".mask_";
     public static final String COMPONENT_MASK_FILE_PREFIX = MASK_FILE_PREFIX + "C_";
     public static final float DEFAULT_TREE_FILL_FACTOR = 1.00f;
-    public static final String DEFAULT_COMPACTION_POLICY_NAME = "prefix";
+    public static final String DEFAULT_COMPACTION_POLICY_NAME = "concurrent";
     public static final String DEFAULT_FILTERED_DATASET_COMPACTION_POLICY_NAME = "correlated-prefix";
     public static final Map<String, String> DEFAULT_COMPACTION_POLICY_PROPERTIES;
 
@@ -57,10 +58,12 @@
 
     static {
         DEFAULT_COMPACTION_POLICY_PROPERTIES = new LinkedHashMap<>();
-        DEFAULT_COMPACTION_POLICY_PROPERTIES.put("max-mergable-component-size", "1073741824"); // 1GB
-        DEFAULT_COMPACTION_POLICY_PROPERTIES.put("max-tolerance-component-count", "5"); // 5 components
+        DEFAULT_COMPACTION_POLICY_PROPERTIES.put(ConcurrentMergePolicyFactory.MAX_COMPONENT_COUNT, "30");
+        DEFAULT_COMPACTION_POLICY_PROPERTIES.put(ConcurrentMergePolicyFactory.MIN_MERGE_COMPONENT_COUNT, "3");
+        DEFAULT_COMPACTION_POLICY_PROPERTIES.put(ConcurrentMergePolicyFactory.MAX_MERGE_COMPONENT_COUNT, "10");
+        DEFAULT_COMPACTION_POLICY_PROPERTIES.put(ConcurrentMergePolicyFactory.SIZE_RATIO, "1.2");
     }
 
     private StorageConstants() {
     }
-}
\ No newline at end of file
+}
diff --git a/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java b/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
index 1ce9002..f0d0efe 100644
--- a/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
+++ b/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
@@ -82,6 +82,7 @@
 import org.apache.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
 import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicyFactory;
 import org.apache.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import org.apache.hyracks.storage.am.lsm.common.impls.ConcurrentMergePolicyFactory;
 import org.apache.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyFactory;
 import org.apache.hyracks.storage.am.lsm.common.impls.NoMergePolicyFactory;
 import org.apache.hyracks.storage.am.lsm.common.impls.PrefixMergePolicyFactory;
@@ -263,9 +264,9 @@
 
     private static void insertInitialCompactionPolicies(MetadataTransactionContext mdTxnCtx)
             throws AlgebricksException {
-        String[] builtInCompactionPolicyClassNames =
-                new String[] { ConstantMergePolicyFactory.class.getName(), PrefixMergePolicyFactory.class.getName(),
-                        NoMergePolicyFactory.class.getName(), CorrelatedPrefixMergePolicyFactory.class.getName() };
+        String[] builtInCompactionPolicyClassNames = new String[] { ConstantMergePolicyFactory.class.getName(),
+                PrefixMergePolicyFactory.class.getName(), ConcurrentMergePolicyFactory.class.getName(),
+                NoMergePolicyFactory.class.getName(), CorrelatedPrefixMergePolicyFactory.class.getName() };
         for (String policyClassName : builtInCompactionPolicyClassNames) {
             CompactionPolicy compactionPolicy = getCompactionPolicyEntity(policyClassName);
             MetadataManager.INSTANCE.addCompactionPolicy(mdTxnCtx, compactionPolicy);
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
new file mode 100644
index 0000000..a3c7fc6
--- /dev/null
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
@@ -0,0 +1,180 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hyracks.storage.am.lsm.common.impls;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.storage.am.common.impls.NoOpIndexAccessParameters;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMComponent.ComponentState;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMDiskComponent;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+
+public class ConcurrentMergePolicy implements ILSMMergePolicy {
+    /**
+     * The minimum number of disk components per merge
+     */
+    private int minMergeComponentCount;
+
+    /**
+     * The maximum number of disk components per merge
+     */
+    private int maxMergeComponentCount;
+
+    /**
+     * The maximum number of disk component allowed before stopping flushes
+     */
+    private int maxComponentCount;
+
+    /**
+     * This parameter is used to avoid merging a big component with a sequence of small components.
+     * If a component is larger than ratio * all younger disk components in the merge list, then
+     * this old (large) component is ignored in this round.
+     */
+    private double sizeRatio;
+
+    @Override
+    public void diskComponentAdded(final ILSMIndex index, boolean fullMergeIsRequested) throws HyracksDataException {
+
+        if (fullMergeIsRequested) {
+            List<ILSMDiskComponent> diskComponents = index.getDiskComponents();
+            if (!diskComponents.stream().allMatch(d -> d.getState() != ComponentState.READABLE_UNWRITABLE)) {
+                return;
+            }
+            index.createAccessor(NoOpIndexAccessParameters.INSTANCE).scheduleFullMerge();
+            return;
+        }
+
+        scheduleMerge(index);
+    }
+
+    @Override
+    public void configure(Map<String, String> properties) {
+        minMergeComponentCount =
+                Integer.parseInt(properties.get(ConcurrentMergePolicyFactory.MIN_MERGE_COMPONENT_COUNT));
+        maxMergeComponentCount =
+                Integer.parseInt(properties.get(ConcurrentMergePolicyFactory.MAX_MERGE_COMPONENT_COUNT));
+        sizeRatio = Double.parseDouble(properties.get(ConcurrentMergePolicyFactory.SIZE_RATIO));
+        maxComponentCount = Integer.parseInt(properties.get(ConcurrentMergePolicyFactory.MAX_COMPONENT_COUNT));
+    }
+
+    @Override
+    public boolean isMergeLagging(ILSMIndex index) throws HyracksDataException {
+        List<ILSMDiskComponent> diskComponents = index.getDiskComponents();
+        if (diskComponents.size() < maxComponentCount) {
+            // not reach the component threshold, simply return false 
+            return false;
+        } else {
+            if (diskComponents.stream().anyMatch(d -> d.getState() == ComponentState.READABLE_MERGING)) {
+                // reach the component threshold and some components are being merged, return true (stop flushing)
+                return true;
+            } else {
+                // reach the component threshold but no components are being merged
+                // this can happen in two cases: (1) the system just recovers; (2) maxMergeComponentCount is too small
+                if (!diskComponents.stream().allMatch(d -> d.getState() == ComponentState.READABLE_UNWRITABLE)) {
+                    throw new IllegalStateException();
+                }
+                // try to schedule a merge operation first
+                boolean isMergeTriggered = scheduleMerge(index);
+                if (!isMergeTriggered) {
+                    // no merge is scheduled => maxMergeComponentCount is too small
+                    // Ideally, this should NEVER happen. But we add a guard here to simply schedule a full merge
+                    // so that the system can still proceed (otherwise, writes will be blocked forever)
+                    ILSMIndexAccessor accessor = index.createAccessor(NoOpIndexAccessParameters.INSTANCE);
+                    accessor.scheduleFullMerge();
+                }
+                return true;
+            }
+        }
+    }
+
+    /**
+     * schedule a merge operation according to this prefix merge policy
+     *
+     * @param index
+     * @return true if merge is scheduled, false otherwise.
+     * @throws HyracksDataException
+     * @throws IndexException
+     */
+    protected boolean scheduleMerge(final ILSMIndex index) throws HyracksDataException {
+        List<ILSMDiskComponent> diskComponents = index.getDiskComponents();
+        Pair<Integer, Integer> mergeableIndexes = getMergableComponentsIndex(diskComponents);
+        if (mergeableIndexes != null) {
+            triggerScheduleMerge(index, diskComponents, mergeableIndexes.getLeft(), mergeableIndexes.getRight());
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    private void triggerScheduleMerge(ILSMIndex index, List<ILSMDiskComponent> diskComponents, int startIndex,
+            int endIndex) throws HyracksDataException {
+        List<ILSMDiskComponent> mergableComponents = diskComponents.subList(startIndex, endIndex + 1);
+        // Reverse the components order back to its original order
+        index.createAccessor(NoOpIndexAccessParameters.INSTANCE).scheduleMerge(mergableComponents);
+    }
+
+    /**
+     * Given a list of disk components (ordered from oldest to newest), this function
+     * identify a sequence of components to be merged. It works logically as follows:
+     * 1. Find the longest prefix of the component sequence (i.e., youngest) that are not being merged
+     * 2. Look at the candidate components for merging in oldest-first order. If one exists, identify the
+     * suffix of the component sequence so that size_size * younger component size >= oldest component size
+     * and the number of merging components is between [minMergeComponentCount, maxMergeComponentCount]
+     *
+     * @param diskComponents
+     * @return a pair of indexes indicating the start (inclusive) and end (exclusive) position of the sequence
+     *         otherwise, return null if no sequence is found
+     */
+    protected Pair<Integer, Integer> getMergableComponentsIndex(List<ILSMDiskComponent> diskComponents)
+            throws HyracksDataException {
+        int numComponents = diskComponents.size();
+        // find the longest suffix of the component sequence that are not being merged
+        int count = 0;
+        for (; count < numComponents; count++) {
+            if (diskComponents.get(count).getState() != ComponentState.READABLE_UNWRITABLE) {
+                break;
+            }
+        }
+        if (count < minMergeComponentCount) {
+            return null;
+        }
+        // build the prefix sum of sizes of the these components
+        long[] componentSizeSum = new long[count];
+        for (int i = 0; i < count; i++) {
+            componentSizeSum[i] = diskComponents.get(i).getComponentSize() + (i > 0 ? componentSizeSum[i - 1] : 0);
+        }
+
+        for (int end = count - 1; end >= minMergeComponentCount - 1; end--) {
+            long componentSize = componentSizeSum[end] - componentSizeSum[end - 1];
+            int start = Math.max(end - maxMergeComponentCount + 1, 0);
+            if (componentSize <= sizeRatio
+                    * (componentSizeSum[end - 1] - (start > 0 ? componentSizeSum[start - 1] : 0))) {
+                return Pair.of(start, end);
+            }
+        }
+        return null;
+    }
+
+}
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
new file mode 100644
index 0000000..954dbdb
--- /dev/null
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hyracks.storage.am.lsm.common.impls;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.hyracks.api.application.INCServiceContext;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.api.io.IJsonSerializable;
+import org.apache.hyracks.api.io.IPersistedResourceRegistry;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicyFactory;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+public class ConcurrentMergePolicyFactory implements ILSMMergePolicyFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final String NAME = "concurrent";
+    public static final String MIN_MERGE_COMPONENT_COUNT = "min-merge-component-count";
+    public static final String MAX_MERGE_COMPONENT_COUNT = "max-merge-component-count";
+    public static final String MAX_COMPONENT_COUNT = "max-component-count";
+    public static final String SIZE_RATIO = "size-ratio";
+    public static final Set<String> PROPERTIES_NAMES = Collections.unmodifiableSet(new HashSet<>(
+            Arrays.asList(MIN_MERGE_COMPONENT_COUNT, MAX_COMPONENT_COUNT, MAX_COMPONENT_COUNT, SIZE_RATIO)));
+
+    @Override
+    public String getName() {
+        return NAME;
+    }
+
+    @Override
+    public Set<String> getPropertiesNames() {
+        return PROPERTIES_NAMES;
+    }
+
+    @Override
+    public ILSMMergePolicy createMergePolicy(Map<String, String> configuration, INCServiceContext ctx) {
+        ILSMMergePolicy policy = new ConcurrentMergePolicy();
+        policy.configure(configuration);
+        return policy;
+    }
+
+    @Override
+    public JsonNode toJson(IPersistedResourceRegistry registry) throws HyracksDataException {
+        return registry.getClassIdentifier(getClass(), serialVersionUID);
+    }
+
+    @SuppressWarnings("squid:S1172") // unused parameter
+    public static IJsonSerializable fromJson(IPersistedResourceRegistry registry, JsonNode json) {
+        return new ConcurrentMergePolicyFactory();
+    }
+}
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
new file mode 100644
index 0000000..098aa51
--- /dev/null
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
@@ -0,0 +1,190 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hyracks.storage.am.lsm.common.test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMComponent.ComponentState;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMDiskComponent;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import org.apache.hyracks.storage.am.lsm.common.impls.ConcurrentMergePolicy;
+import org.apache.hyracks.storage.am.lsm.common.impls.ConcurrentMergePolicyFactory;
+import org.apache.hyracks.storage.common.IIndexAccessParameters;
+import org.junit.Assert;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+
+public class ConcurrentMergePolicyTest {
+
+    private static final int MIN_MERGE_COMPONENT_COUNT = 3;
+    private static final int MAX_MERGE_COMPONENT_COUNT = 5;
+    private static final int MAX_COMPONENT_COUNT = 10;
+    private static final double SIZE_RATIO = 1.0;
+
+    @Test
+    public void testBasic() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 6L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        policy.diskComponentAdded(index, false);
+
+        Assert.assertEquals(sizes, resultSizes);
+    }
+
+    @Test
+    public void testNotEnoughComponents() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        policy.diskComponentAdded(index, false);
+
+        Assert.assertTrue(resultSizes.isEmpty());
+    }
+
+    @Test
+    public void testSkipLargeComponent() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 7L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        policy.diskComponentAdded(index, false);
+
+        Assert.assertEquals(sizes.subList(0, 3), resultSizes);
+    }
+
+    @Test
+    public void testMaxMergeComponentCount() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L, 7L, 100L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        policy.diskComponentAdded(index, false);
+
+        Assert.assertEquals(sizes.subList(2, 2 + MAX_MERGE_COMPONENT_COUNT), resultSizes);
+    }
+
+    @Test
+    public void testConcurrentMerge() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L, 7L, 100L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        // component 5L is merging
+        Mockito.when(index.getDiskComponents().get(4).getState()).thenReturn(ComponentState.READABLE_MERGING);
+
+        policy.diskComponentAdded(index, false);
+        Assert.assertEquals(sizes.subList(0, 4), resultSizes);
+    }
+
+    @Test
+    public void testNoMergeLagging() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L, 7L, 100L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        Assert.assertFalse(policy.isMergeLagging(index));
+    }
+
+    @Test
+    public void testMergeLagging() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        Assert.assertTrue(policy.isMergeLagging(index));
+        // there should be a merge scheduled
+        Assert.assertEquals(sizes.subList(6, 11), resultSizes);
+    }
+
+    @Test
+    public void testMergeLaggingFullMerge() throws HyracksDataException {
+        List<Long> sizes = new ArrayList<>(Arrays.asList(1L, 2L, 4L, 8L, 16L, 32L, 64L, 128L, 256L, 512L, 1024L));
+        List<Long> resultSizes = new ArrayList<>();
+        ILSMIndex index = mockIndex(sizes, resultSizes);
+        ILSMMergePolicy policy = createkMergePolicy();
+        Assert.assertTrue(policy.isMergeLagging(index));
+        // there should be a merge scheduled
+        Assert.assertEquals(sizes, resultSizes);
+    }
+
+    private ILSMMergePolicy createkMergePolicy() {
+        Map<String, String> properties = new HashMap<>();
+        properties.put(ConcurrentMergePolicyFactory.MAX_COMPONENT_COUNT, String.valueOf(MAX_COMPONENT_COUNT));
+        properties.put(ConcurrentMergePolicyFactory.SIZE_RATIO, String.valueOf(SIZE_RATIO));
+        properties.put(ConcurrentMergePolicyFactory.MIN_MERGE_COMPONENT_COUNT,
+                String.valueOf(MIN_MERGE_COMPONENT_COUNT));
+        properties.put(ConcurrentMergePolicyFactory.MAX_MERGE_COMPONENT_COUNT,
+                String.valueOf(MAX_MERGE_COMPONENT_COUNT));
+
+        ILSMMergePolicy policy = new ConcurrentMergePolicy();
+        policy.configure(properties);
+        return policy;
+    }
+
+    private ILSMIndex mockIndex(List<Long> componentSizes, List<Long> mergedSizes) throws HyracksDataException {
+        List<ILSMDiskComponent> components = new ArrayList<>();
+        for (Long size : componentSizes) {
+            ILSMDiskComponent component = Mockito.mock(ILSMDiskComponent.class);
+            Mockito.when(component.getComponentSize()).thenReturn(size);
+            Mockito.when(component.getState()).thenReturn(ComponentState.READABLE_UNWRITABLE);
+            components.add(component);
+        }
+
+        ILSMIndex index = Mockito.mock(ILSMIndex.class);
+        Mockito.when(index.getDiskComponents()).thenReturn(components);
+
+        ILSMIndexAccessor accessor = Mockito.mock(ILSMIndexAccessor.class);
+
+        Mockito.doAnswer(new Answer<Void>() {
+            @Override
+            public Void answer(InvocationOnMock invocation) throws Throwable {
+                List<ILSMDiskComponent> mergedComponents = invocation.getArgumentAt(0, List.class);
+                mergedComponents.forEach(component -> {
+                    mergedSizes.add(component.getComponentSize());
+                });
+                return null;
+            }
+        }).when(accessor).scheduleMerge(Mockito.anyListOf(ILSMDiskComponent.class));
+
+        Mockito.doAnswer(new Answer<Void>() {
+            @Override
+            public Void answer(InvocationOnMock invocation) throws Throwable {
+                mergedSizes.addAll(componentSizes);
+                return null;
+            }
+        }).when(accessor).scheduleFullMerge();
+
+        Mockito.when(index.createAccessor(Mockito.any(IIndexAccessParameters.class))).thenReturn(accessor);
+
+        return index;
+    }
+
+}

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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-notopic/11534/ (12/16)


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Gerrit-Reviewer: Dmitry Lychagin <dm...@couchbase.com>
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Gerrit-Reviewer: Jenkins <je...@fulliautomatix.ics.uci.edu>
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Gerrit-Reviewer: Murtadha Hubail <mh...@apache.org>
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/hyracks-gerrit/5941/ (1/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-openjdk11/1408/ (16/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Integration Tests Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8819/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Luo Chen (Code Review)" <de...@asterixdb.apache.org>.
Hello Anon. E. Moose (1000171), Till Westmann, Jenkins, Michael Blow, Murtadha Hubail, Ian Maxon, Dmitry Lychagin, 

I'd like you to reexamine a change. Please visit

    https://asterix-gerrit.ics.uci.edu/3463

to look at the new patch set (#4).

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................

[ASTERIXDB-2600] Introduce ConcurrentMergePolicy

- user model changes: yes. Add a new merge policy and make it as default
- storage format changes: no.
- interface changes: no.

Details:
- Introduce ConcurrentMergePolicy that performs concurrent merges
without the maximum component size.
- Make this merge policy as the default merge policy in AsterixDB since
the PrefixMergePolicy has made some wrong design decisions.

Change-Id: I2ed79847584b9fe846d62ad56ee094863538a2a2
---
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/io/PersistedResourceRegistry.java
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
M asterixdb/asterix-app/src/test/java/org/apache/asterix/test/metadata/MetadataTxnTest.java
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv02/cross-dv02.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv04/cross-dv04.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv19/cross-dv19.1.adm
A asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf23/udf23.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
M asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
M asterixdb/asterix-lang-common/src/main/java/org/apache/asterix/lang/common/util/DatasetDeclParametersUtil.java
M asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
A hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
20 files changed, 827 insertions(+), 32 deletions(-)


  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb refs/changes/63/3463/4
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Gerrit-Owner: Luo Chen <cl...@uci.edu>
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Gerrit-Reviewer: Dmitry Lychagin <dm...@couchbase.com>
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Gerrit-Reviewer: Michael Blow <mb...@apache.org>
Gerrit-Reviewer: Murtadha Hubail <mh...@apache.org>
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-asterix-app/6413/ (7/16)


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Gerrit-Reviewer: Anon. E. Moose (1000171)
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Gerrit-Reviewer: Jenkins <je...@fulliautomatix.ics.uci.edu>
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Gerrit-Comment-Date: Fri, 28 Jun 2019 05:10:11 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ensure-ancestor/4023/ (9/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4: Contrib+1

BAD Compatibility Tests Successful

https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4634/ : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-storage/6593/ (15/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-asterix-app/6382/ (2/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-storage/6624/ (3/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-asterix-app/6416/ (9/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-stabilization-f69489-compat/1310/ (4/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

BAD Compatibility Tests Started https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4632/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Analytics Compatibility Compilation Successful
https://cbjenkins.page.link/x1bAxo3zS5d5oKeB9 : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

WARNING: THIS CHANGE CONTAINS CROSS-PRODUCT CHANGES IN:
* asterixdb
* hyracks-fullstack

PLEASE REVIEW CAREFULLY AND LOOK FOR API CHANGES!


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Analytics Compatibility Compilation Successful
https://cbjenkins.page.link/p9rnfJqtgtf4jJPbA : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ssl-compression/786/ (5/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-sql-execution/6042/ (15/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Analytics Compatibility Compilation Successful
https://cbjenkins.page.link/nu7vP5FbASzF8AeL6 : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-assemblies/6266/ (7/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-openjdk11/1378/ (13/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Integration Tests Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8787/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-sql-execution/6044/ (13/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-no-installer-app/6198/ (13/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1: Contrib-2

Analytics Compatibility Tests Failed
https://cbjenkins.page.link/Gqym7f9De8HgXNUE6 : UNSTABLE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-cancellation-test/6043/ (5/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-stabilization-f69489-compat/1313/ (11/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-openjdk11/1387/ (13/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ensure-ancestor/4044/ (10/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-txnlog/1223/ (8/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-format/6028/ (4/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-assemblies/6263/ (14/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Integration Tests Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8796/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-sonar/9984/ (11/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-storage/6602/ (12/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-cancellation-test/6034/ (8/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Integration Tests Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8817/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-no-installer-app/6169/ (3/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1: Contrib-2

BAD Compatibility Tests Failed

https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4609/ : UNSTABLE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-spidersilk-tests/977/ (9/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

BAD Compatibility Tests Started https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4634/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-openjdk11/1411/ (16/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

WARNING: THIS CHANGE CONTAINS CROSS-PRODUCT CHANGES IN:
* asterixdb
* hyracks-fullstack

PLEASE REVIEW CAREFULLY AND LOOK FOR API CHANGES!


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-txnlog/1198/ (15/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2: Contrib-2

Analytics Compatibility Tests Failed
https://cbjenkins.page.link/cwZSumMVhPEuAvWu6 : UNSTABLE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-format/5994/ (10/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-sonar/9975/ (12/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-spidersilk-tests/947/ (4/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-no-installer-app/6178/ (4/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-txnlog/1189/ (16/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Luo Chen (Code Review)" <de...@asterixdb.apache.org>.
Hello Anon. E. Moose (1000171), Till Westmann, Jenkins, Michael Blow, Murtadha Hubail, Ian Maxon, Dmitry Lychagin, 

I'd like you to reexamine a change. Please visit

    https://asterix-gerrit.ics.uci.edu/3463

to look at the new patch set (#3).

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................

[ASTERIXDB-2600] Introduce ConcurrentMergePolicy

- user model changes: yes. Add a new merge policy and make it as default
- storage format changes: no.
- interface changes: no.

Details:
- Introduce ConcurrentMergePolicy that performs concurrent merges
without the maximum component size.
- Make this merge policy as the default merge policy in AsterixDB since
the PrefixMergePolicy has made some wrong design decisions.

Change-Id: I2ed79847584b9fe846d62ad56ee094863538a2a2
---
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/io/PersistedResourceRegistry.java
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv02/cross-dv02.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv04/cross-dv04.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv19/cross-dv19.1.adm
A asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf23/udf23.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
M asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
M asterixdb/asterix-lang-common/src/main/java/org/apache/asterix/lang/common/util/DatasetDeclParametersUtil.java
M asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
A hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
19 files changed, 826 insertions(+), 31 deletions(-)


  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb refs/changes/63/3463/3
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Gerrit-Reviewer: Michael Blow <mb...@apache.org>
Gerrit-Reviewer: Murtadha Hubail <mh...@apache.org>
Gerrit-Reviewer: Till Westmann <ti...@apache.org>

Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ensure-ancestor/4014/ (7/16)


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Gerrit-Change-Number: 3463
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Gerrit-Comment-Date: Wed, 26 Jun 2019 05:10:04 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1: Integration-Tests-1

Integration Tests Failed

https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8787/ : UNSTABLE


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Gerrit-Comment-Date: Wed, 26 Jun 2019 05:40:47 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-notopic/11537/ (5/16)


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Gerrit-Reviewer: Dmitry Lychagin <dm...@couchbase.com>
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Gerrit-Comment-Date: Fri, 28 Jun 2019 06:11:31 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ssl-compression/818/ (3/16)


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Gerrit-Comment-Date: Fri, 28 Jun 2019 06:11:30 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-stabilization-f69489-compat/1289/ (14/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4: Contrib-2

Analytics Compatibility Tests Failed
https://cbjenkins.page.link/kmqyHYgKAUuNuipj6 : UNSTABLE


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Gerrit-Comment-Date: Fri, 28 Jun 2019 08:28:28 +0000
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Anon. E. Moose (Code Review)" <de...@asterixdb.apache.org>.
Anon. E. Moose (1000171) has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Analytics Compatibility Compilation Successful
https://cbjenkins.page.link/UR1L6q9KDF7op4oW8 : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ensure-ancestor/4046/ (12/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3: Contrib-2

BAD Compatibility Tests Failed

https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4632/ : UNSTABLE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/hyracks-gerrit/5964/ (1/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Luo Chen (Code Review)" <de...@asterixdb.apache.org>.
Hello Anon. E. Moose (1000171), Till Westmann, Jenkins, Michael Blow, Murtadha Hubail, Ian Maxon, Dmitry Lychagin, 

I'd like you to reexamine a change. Please visit

    https://asterix-gerrit.ics.uci.edu/3463

to look at the new patch set (#2).

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................

[ASTERIXDB-2600] Introduce ConcurrentMergePolicy

- user model changes: yes. Add a new merge policy and make it as default
- storage format changes: no.
- interface changes: no.

Details:
- Introduce ConcurrentMergePolicy that performs concurrent merges
without the maximum component size.
- Make this merge policy as the default merge policy in AsterixDB since
the PrefixMergePolicy has made some wrong design decisions.

Change-Id: I2ed79847584b9fe846d62ad56ee094863538a2a2
---
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/io/PersistedResourceRegistry.java
M asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.2.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.3.ddl.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.4.update.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.5.query.sqlpp
A asterixdb/asterix-app/src/test/resources/runtimets/results/dml/using-concurrent-merge-policy/using-concurrent-merge-policy.1.adm
M asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
M asterixdb/asterix-common/src/main/java/org/apache/asterix/common/utils/StorageConstants.java
M asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/bootstrap/MetadataBootstrap.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicy.java
A hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/ConcurrentMergePolicyFactory.java
A hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/ConcurrentMergePolicyTest.java
14 files changed, 796 insertions(+), 8 deletions(-)


  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb refs/changes/63/3463/2
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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-txnlog/1220/ (6/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-no-installer-app/6200/ (14/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4: Integration-Tests+1

Integration Tests Successful

https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8819/ : SUCCESS


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ssl-compression/815/ (5/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2: Integration-Tests-1

Integration Tests Failed

https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-integration-tests/8796/ : UNSTABLE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-cancellation-test/6068/ (2/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

WARNING: THIS CHANGE CONTAINS CROSS-PRODUCT CHANGES IN:
* asterixdb
* hyracks-fullstack

PLEASE REVIEW CAREFULLY AND LOOK FOR API CHANGES!


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-cancellation-test/6065/ (11/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

WARNING: THIS CHANGE CONTAINS CROSS-PRODUCT CHANGES IN:
* asterixdb
* hyracks-fullstack

PLEASE REVIEW CAREFULLY AND LOOK FOR API CHANGES!


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/hyracks-gerrit/5967/ (1/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-spidersilk-tests/956/ (3/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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......................................................................


Patch Set 2:

BAD Compatibility Tests Started https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4618/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-stabilization-f69489-compat/1280/ (14/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-assemblies/6232/ (11/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
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Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-sonar/10006/ (2/16)


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Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
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Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-verify-storage/6626/ (10/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 3:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-format/6025/ (8/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-notopic/11503/ (9/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/hyracks-gerrit/5932/ (1/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-sql-execution/6020/ (2/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-format/6003/ (8/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-asterix-app-sql-execution/6011/ (6/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2: Contrib-2

BAD Compatibility Tests Failed

https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4618/ : FAILURE


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-sonar/10009/ (6/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-source-assemblies/6241/ (10/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 4:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-spidersilk-tests/980/ (15/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 1:

BAD Compatibility Tests Started https://asterix-jenkins.ics.uci.edu/job/asterixbad-compat/4609/


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-verify-asterix-app/6391/ (16/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-notopic/11512/ (7/16)


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Change in asterixdb[master]: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy

Posted by "Jenkins (Code Review)" <de...@asterixdb.apache.org>.
Jenkins has posted comments on this change. ( https://asterix-gerrit.ics.uci.edu/3463 )

Change subject: [ASTERIXDB-2600] Introduce ConcurrentMergePolicy
......................................................................


Patch Set 2:

Build Started https://asterix-jenkins.ics.uci.edu/job/asterix-gerrit-ssl-compression/795/ (6/16)


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