[GitHub] [hive] pgaref commented on a change in pull request #2305: HIVE-25149: Support parallel load for Fast HT implementations

[GitBox <gi...@apache.org>]

pgaref commented on a change in pull request #2305:
URL: https://github.com/apache/hive/pull/2305#discussion_r638061072



##########
File path: itests/hive-jmh/src/main/java/org/apache/hive/benchmark/vectorization/mapjoin/load/LegacyVectorMapJoinFastHashTableLoader.java
##########
@@ -0,0 +1,195 @@
+/*
+ * Licensed 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.hive.benchmark.vectorization.mapjoin.load;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.llap.LlapDaemonInfo;
+import org.apache.hadoop.hive.ql.exec.MapJoinOperator;
+import org.apache.hadoop.hive.ql.exec.MapredContext;
+import org.apache.hadoop.hive.ql.exec.MemoryMonitorInfo;
+import org.apache.hadoop.hive.ql.exec.Operator;
+import org.apache.hadoop.hive.ql.exec.Utilities;
+import org.apache.hadoop.hive.ql.exec.mapjoin.MapJoinMemoryExhaustionError;
+import org.apache.hadoop.hive.ql.exec.mr.ExecMapperContext;
+import org.apache.hadoop.hive.ql.exec.persistence.MapJoinTableContainer;
+import org.apache.hadoop.hive.ql.exec.persistence.MapJoinTableContainerSerDe;
+import org.apache.hadoop.hive.ql.exec.tez.TezContext;
+import org.apache.hadoop.hive.ql.exec.vector.mapjoin.fast.VectorMapJoinFastTableContainer;
+import org.apache.hadoop.hive.ql.metadata.HiveException;
+import org.apache.hadoop.hive.ql.plan.MapJoinDesc;
+import org.apache.hadoop.hive.serde2.SerDeException;
+import org.apache.hadoop.io.BytesWritable;
+import org.apache.tez.common.counters.TezCounter;
+import org.apache.tez.runtime.api.AbstractLogicalInput;
+import org.apache.tez.runtime.api.Input;
+import org.apache.tez.runtime.api.LogicalInput;
+import org.apache.tez.runtime.library.api.KeyValueReader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Map;
+
+public class LegacyVectorMapJoinFastHashTableLoader implements org.apache.hadoop.hive.ql.exec.HashTableLoader {
+  private static final Logger LOG = LoggerFactory.getLogger(LegacyVectorMapJoinFastHashTableLoader.class.getName());

Review comment:
       ack




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