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Posted to commits@hbase.apache.org by st...@apache.org on 2019/03/18 06:28:13 UTC
svn commit: r33002 [2/4] - /dev/hbase/2.0.5RC1/
Added: dev/hbase/2.0.5RC1/CHANGES.md
==============================================================================
--- dev/hbase/2.0.5RC1/CHANGES.md (added)
+++ dev/hbase/2.0.5RC1/CHANGES.md Mon Mar 18 06:28:12 2019
@@ -0,0 +1,6708 @@
+# HBASE Changelog
+<!---
+ 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.
+
+
+
+CHANGES.md and RELEASENOTES.md were generated using yetus releasedocmaker.
+
+First make sure what is in JIRA agrees with what is in git and vice-versa
+(See HBASE-14025 for original exposition on how to do this followed by
+the travails of various release managers. See also HBASE-18828 for a
+deriviative makes the move to yetus releasedocmaker).
+
+Then make sure that anything in current release as noted in JIRA has
+not made it out in earlier major/minor (see HBASE-14025 for how to
+reconcile which).
+
+Obtain a yetus release (see HBASE-18828 for some help). To run
+releasedocmaker, do as follows (below example is for hbase-2.0.0):
+
+ $ ./release-doc-maker/releasedocmaker.py -p HBASE --fileversions \
+ -v 2.0.0 -l --sortorder=newer --skip-credits
+
+Rename the output as CHANGES.md and RELEASENOTES.md. Edit both to put
+document title above the apache license so markdown readers work. You
+may have to bulk import old-style CHANGES.txt on to the end in a code
+comment to preserve continuity of the CHANGELOG.
+
+DO NOT REMOVE THIS MARKER; FOR INTERPOLATING CHANGES!-->
+## Release 2.0.5 - Unreleased (as of 2019-03-17)
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21727](https://issues.apache.org/jira/browse/HBASE-21727) | Simplify documentation around client timeout | Minor | . |
+| [HBASE-21684](https://issues.apache.org/jira/browse/HBASE-21684) | Throw DNRIOE when connection or rpc client is closed | Major | asyncclient, Client |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21667](https://issues.apache.org/jira/browse/HBASE-21667) | Move to latest ASF Parent POM | Minor | build |
+| [HBASE-21932](https://issues.apache.org/jira/browse/HBASE-21932) | Use Runtime.getRuntime().halt to terminate regionserver when abort timeout | Major | . |
+| [HBASE-21636](https://issues.apache.org/jira/browse/HBASE-21636) | Enhance the shell scan command to support missing scanner specifications like ReadType, IsolationLevel etc. | Major | shell |
+| [HBASE-21833](https://issues.apache.org/jira/browse/HBASE-21833) | Use NettyAsyncFSWALConfigHelper.setEventLoopConfig to prevent creating too many netty event loop when executing TestHRegion | Minor | test |
+| [HBASE-21634](https://issues.apache.org/jira/browse/HBASE-21634) | Print error message when user uses unacceptable values for LIMIT while setting quotas. | Minor | . |
+| [HBASE-21712](https://issues.apache.org/jira/browse/HBASE-21712) | Make submit-patch.py python3 compatible | Minor | tooling |
+| [HBASE-21297](https://issues.apache.org/jira/browse/HBASE-21297) | ModifyTableProcedure can throw TNDE instead of IOE in case of REGION\_REPLICATION change | Minor | . |
+| [HBASE-21694](https://issues.apache.org/jira/browse/HBASE-21694) | Add append\_peer\_exclude\_tableCFs and remove\_peer\_exclude\_tableCFs shell commands | Major | . |
+| [HBASE-21645](https://issues.apache.org/jira/browse/HBASE-21645) | Perform sanity check and disallow table creation/modification with region replication \< 1 | Minor | . |
+| [HBASE-21662](https://issues.apache.org/jira/browse/HBASE-21662) | Add append\_peer\_exclude\_namespaces and remove\_peer\_exclude\_namespaces shell commands | Major | . |
+| [HBASE-21520](https://issues.apache.org/jira/browse/HBASE-21520) | TestMultiColumnScanner cost long time when using ROWCOL bloom type | Major | test |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21990](https://issues.apache.org/jira/browse/HBASE-21990) | puppycrawl checkstyle dtds 404... moved to sourceforge | Major | build |
+| [HBASE-22006](https://issues.apache.org/jira/browse/HBASE-22006) | Fix branch-2.1 findbugs warning; causes nightly show as failed. | Major | . |
+| [HBASE-21960](https://issues.apache.org/jira/browse/HBASE-21960) | RESTServletContainer not configured for REST Jetty server | Blocker | REST |
+| [HBASE-21915](https://issues.apache.org/jira/browse/HBASE-21915) | FileLink$FileLinkInputStream doesn't implement CanUnbuffer | Major | Filesystem Integration |
+| [HBASE-21961](https://issues.apache.org/jira/browse/HBASE-21961) | Infinite loop in AsyncNonMetaRegionLocator if there is only one region and we tried to locate before a non empty row | Critical | asyncclient, Client |
+| [HBASE-21943](https://issues.apache.org/jira/browse/HBASE-21943) | The usage of RegionLocations.mergeRegionLocations is wrong for async client | Critical | asyncclient, Client |
+| [HBASE-21942](https://issues.apache.org/jira/browse/HBASE-21942) | [UI] requests per second is incorrect in rsgroup page(rsgroup.jsp) | Minor | . |
+| [HBASE-21929](https://issues.apache.org/jira/browse/HBASE-21929) | The checks at the end of TestRpcClientLeaks are not executed | Major | test |
+| [HBASE-21913](https://issues.apache.org/jira/browse/HBASE-21913) | src/main/asciidoc/images link is incorrect | Trivial | website |
+| [HBASE-21910](https://issues.apache.org/jira/browse/HBASE-21910) | The nonce implementation is wrong for AsyncTable | Critical | asyncclient, Client |
+| [HBASE-21900](https://issues.apache.org/jira/browse/HBASE-21900) | Infinite loop in AsyncMetaRegionLocator if we can not get the location for meta | Major | asyncclient, Client |
+| [HBASE-21890](https://issues.apache.org/jira/browse/HBASE-21890) | Use execute instead of submit to submit a task in RemoteProcedureDispatcher | Critical | proc-v2 |
+| [HBASE-21889](https://issues.apache.org/jira/browse/HBASE-21889) | Use thrift 0.12.0 when build thrift by compile-thrift profile | Major | . |
+| [HBASE-21854](https://issues.apache.org/jira/browse/HBASE-21854) | Race condition in TestProcedureSkipPersistence | Minor | proc-v2 |
+| [HBASE-21862](https://issues.apache.org/jira/browse/HBASE-21862) | IPCUtil.wrapException should keep the original exception types for all the connection exceptions | Blocker | . |
+| [HBASE-18484](https://issues.apache.org/jira/browse/HBASE-18484) | VerifyRep by snapshot does not work when Yarn / SourceHBase / PeerHBase located in different HDFS clusters | Major | Replication |
+| [HBASE-21775](https://issues.apache.org/jira/browse/HBASE-21775) | The BufferedMutator doesn't ever refresh region location cache | Major | Client |
+| [HBASE-21843](https://issues.apache.org/jira/browse/HBASE-21843) | RegionGroupingProvider breaks the meta wal file name pattern which may cause data loss for meta region | Blocker | wal |
+| [HBASE-20485](https://issues.apache.org/jira/browse/HBASE-20485) | Copy constructor of Scan doesn't copy the readType and replicaId | Minor | . |
+| [HBASE-21795](https://issues.apache.org/jira/browse/HBASE-21795) | Client application may get stuck (time bound) if a table modify op is called immediately after split op | Critical | amv2 |
+| [HBASE-21840](https://issues.apache.org/jira/browse/HBASE-21840) | TestHRegionWithInMemoryFlush fails with NPE | Blocker | test |
+| [HBASE-21644](https://issues.apache.org/jira/browse/HBASE-21644) | Modify table procedure runs infinitely for a table having region replication \> 1 | Critical | Admin |
+| [HBASE-21699](https://issues.apache.org/jira/browse/HBASE-21699) | Create table failed when using SPLITS\_FILE =\> 'splits.txt' | Blocker | Client, shell |
+| [HBASE-21535](https://issues.apache.org/jira/browse/HBASE-21535) | Zombie Master detector is not working | Critical | master |
+| [HBASE-21754](https://issues.apache.org/jira/browse/HBASE-21754) | ReportRegionStateTransitionRequest should be executed in priority executor | Major | . |
+| [HBASE-21475](https://issues.apache.org/jira/browse/HBASE-21475) | Put mutation (having TTL set) added via co-processor is retrieved even after TTL expires | Major | Coprocessors |
+| [HBASE-21746](https://issues.apache.org/jira/browse/HBASE-21746) | Fix two concern cases in RegionMover | Major | . |
+| [HBASE-21732](https://issues.apache.org/jira/browse/HBASE-21732) | Should call toUpperCase before using Enum.valueOf in some methods for ColumnFamilyDescriptor | Critical | Client |
+| [HBASE-21704](https://issues.apache.org/jira/browse/HBASE-21704) | The implementation of DistributedHBaseCluster.getServerHoldingRegion is incorrect | Major | . |
+| [HBASE-21639](https://issues.apache.org/jira/browse/HBASE-21639) | maxHeapUsage value not read properly from config during EntryBuffers initialization | Minor | . |
+| [HBASE-21225](https://issues.apache.org/jira/browse/HBASE-21225) | Having RPC & Space quota on a table/Namespace doesn't allow space quota to be removed using 'NONE' | Major | . |
+| [HBASE-20220](https://issues.apache.org/jira/browse/HBASE-20220) | [RSGroup] Check if table exists in the cluster before moving it to the specified regionserver group | Major | rsgroup |
+| [HBASE-21691](https://issues.apache.org/jira/browse/HBASE-21691) | Fix flaky test TestRecoveredEdits | Major | . |
+| [HBASE-21683](https://issues.apache.org/jira/browse/HBASE-21683) | Reset readsEnabled flag after successfully flushing the primary region | Critical | read replicas |
+| [HBASE-21630](https://issues.apache.org/jira/browse/HBASE-21630) | [shell] Define ENDKEY == STOPROW (we have ENDROW) | Trivial | shell |
+| [HBASE-21547](https://issues.apache.org/jira/browse/HBASE-21547) | Precommit uses master flaky list for other branches | Major | test |
+| [HBASE-21582](https://issues.apache.org/jira/browse/HBASE-21582) | If call HBaseAdmin#snapshotAsync but forget call isSnapshotFinished, then SnapshotHFileCleaner will skip to run every time | Major | . |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-22025](https://issues.apache.org/jira/browse/HBASE-22025) | RAT check fails in nightlies; fails on (old) test data files. | Major | . |
+| [HBASE-21999](https://issues.apache.org/jira/browse/HBASE-21999) | [DEBUG] Exit if git returns empty revision! | Major | build |
+| [HBASE-21997](https://issues.apache.org/jira/browse/HBASE-21997) | Fix hbase-rest findbugs ST\_WRITE\_TO\_STATIC\_FROM\_INSTANCE\_METHOD complaint | Major | REST |
+| [HBASE-21989](https://issues.apache.org/jira/browse/HBASE-21989) | Revert HBASE-21915 from branch-2.0 | Major | . |
+| [HBASE-21836](https://issues.apache.org/jira/browse/HBASE-21836) | Generate CHANGES.md and RELEASENOTES.md for 2.0.5 | Major | . |
+| [HBASE-21927](https://issues.apache.org/jira/browse/HBASE-21927) | Always fail the locate request when error occur | Major | asyncclient, Client |
+| [HBASE-19889](https://issues.apache.org/jira/browse/HBASE-19889) | Revert Workaround: Purge User API building from branch-2 so can make a beta-1 | Major | website |
+| [HBASE-21835](https://issues.apache.org/jira/browse/HBASE-21835) | Set version as 2.0.5 in branch-2.0 in prep for first RC | Major | build |
+| [HBASE-21829](https://issues.apache.org/jira/browse/HBASE-21829) | Use FutureUtils.addListener instead of calling whenComplete directly | Major | asyncclient, Client |
+| [HBASE-21832](https://issues.apache.org/jira/browse/HBASE-21832) | Backport parent "HBASE-21595 Print thread's information and stack traces when RS is aborting forcibly" to branch-2.0/2.1 | Minor | regionserver |
+| [HBASE-21828](https://issues.apache.org/jira/browse/HBASE-21828) | Make sure we do not return CompletionException when locating region | Major | asyncclient, Client |
+| [HBASE-21764](https://issues.apache.org/jira/browse/HBASE-21764) | Size of in-memory compaction thread pool should be configurable | Major | in-memory-compaction |
+| [HBASE-21402](https://issues.apache.org/jira/browse/HBASE-21402) | Backport parent "HBASE-21325 Force to terminate regionserver when abort hang in somewhere" | Major | . |
+| [HBASE-21734](https://issues.apache.org/jira/browse/HBASE-21734) | Some optimization in FilterListWithOR | Major | . |
+| [HBASE-21738](https://issues.apache.org/jira/browse/HBASE-21738) | Remove all the CSLM#size operation in our memstore because it's an quite time consuming. | Critical | Performance |
+| [HBASE-19695](https://issues.apache.org/jira/browse/HBASE-19695) | Handle disabled table for async client | Major | asyncclient, Client |
+| [HBASE-21711](https://issues.apache.org/jira/browse/HBASE-21711) | Remove references to git.apache.org/hbase.git | Critical | . |
+| [HBASE-21705](https://issues.apache.org/jira/browse/HBASE-21705) | Should treat meta table specially for some methods in AsyncAdmin | Major | Admin, asyncclient, Client |
+| [HBASE-21663](https://issues.apache.org/jira/browse/HBASE-21663) | Add replica scan support | Major | asyncclient, Client, read replicas |
+| [HBASE-21580](https://issues.apache.org/jira/browse/HBASE-21580) | Support getting Hbck instance from AsyncConnection | Major | asyncclient, Client, hbck2 |
+| [HBASE-21682](https://issues.apache.org/jira/browse/HBASE-21682) | Support getting from specific replica | Major | read replicas |
+| [HBASE-21669](https://issues.apache.org/jira/browse/HBASE-21669) | Move branch-2.0 to 2.0.5-SNAPSHOT version after release of 2.0.4 | Major | . |
+| [HBASE-17356](https://issues.apache.org/jira/browse/HBASE-17356) | Add replica get support | Major | Client |
+| [HBASE-18569](https://issues.apache.org/jira/browse/HBASE-18569) | Add prefetch support for async region locator | Major | asyncclient, Client |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21612](https://issues.apache.org/jira/browse/HBASE-21612) | Add developer debug options in HBase Config for REST server | Minor | Operability, REST, scripts |
+| [HBASE-21853](https://issues.apache.org/jira/browse/HBASE-21853) | update copyright notices to 2019 | Major | documentation |
+| [HBASE-21791](https://issues.apache.org/jira/browse/HBASE-21791) | Upgrade thrift dependency to 0.12.0 | Blocker | Thrift |
+| [HBASE-21715](https://issues.apache.org/jira/browse/HBASE-21715) | Do not throw UnsupportedOperationException in ProcedureFuture.get | Major | Client |
+| [HBASE-21731](https://issues.apache.org/jira/browse/HBASE-21731) | Do not need to use ClusterConnection in IntegrationTestBigLinkedListWithVisibility | Major | . |
+| [HBASE-21685](https://issues.apache.org/jira/browse/HBASE-21685) | Change repository urls to Gitbox | Critical | . |
+
+
+## Release 2.0.4 - Released 2019-01-04
+
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21640](https://issues.apache.org/jira/browse/HBASE-21640) | Remove the TODO when increment zero | Major | . |
+| [HBASE-21631](https://issues.apache.org/jira/browse/HBASE-21631) | list\_quotas should print human readable values for LIMIT | Minor | shell |
+| [HBASE-21635](https://issues.apache.org/jira/browse/HBASE-21635) | Use maven enforcer to ban imports from illegal packages | Major | build |
+| [HBASE-21590](https://issues.apache.org/jira/browse/HBASE-21590) | Optimize trySkipToNextColumn in StoreScanner a bit | Critical | Performance, Scanners |
+| [HBASE-21413](https://issues.apache.org/jira/browse/HBASE-21413) | Empty meta log doesn't get split when restart whole cluster | Major | . |
+| [HBASE-21146](https://issues.apache.org/jira/browse/HBASE-21146) | (2.0) Add ability for HBase Canary to ignore a configurable number of ZooKeeper down nodes | Minor | canary, Zookeeper |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21646](https://issues.apache.org/jira/browse/HBASE-21646) | Flakey TestTableSnapshotInputFormat; DisableTable not completing... | Major | test |
+| [HBASE-21545](https://issues.apache.org/jira/browse/HBASE-21545) | NEW\_VERSION\_BEHAVIOR breaks Get/Scan with specified columns | Major | API |
+| [HBASE-21629](https://issues.apache.org/jira/browse/HBASE-21629) | draining\_servers.rb is broken | Major | scripts |
+| [HBASE-21621](https://issues.apache.org/jira/browse/HBASE-21621) | Reversed scan does not return expected number of rows | Critical | scan |
+| [HBASE-21620](https://issues.apache.org/jira/browse/HBASE-21620) | Problem in scan query when using more than one column prefix filter in some cases. | Major | scan |
+| [HBASE-21618](https://issues.apache.org/jira/browse/HBASE-21618) | Scan with the same startRow(inclusive=true) and stopRow(inclusive=false) returns one result | Critical | Client |
+| [HBASE-21610](https://issues.apache.org/jira/browse/HBASE-21610) | numOpenConnections metric is set to -1 when zero server channel exist | Minor | metrics |
+| [HBASE-21498](https://issues.apache.org/jira/browse/HBASE-21498) | Master OOM when SplitTableRegionProcedure new CacheConfig and instantiate a new BlockCache | Major | . |
+| [HBASE-21592](https://issues.apache.org/jira/browse/HBASE-21592) | quota.addGetResult(r) throw NPE | Major | . |
+| [HBASE-21589](https://issues.apache.org/jira/browse/HBASE-21589) | TestCleanupMetaWAL fails | Blocker | test, wal |
+| [HBASE-21568](https://issues.apache.org/jira/browse/HBASE-21568) | Disable use of BlockCache for LoadIncrementalHFiles | Major | Client |
+| [HBASE-21559](https://issues.apache.org/jira/browse/HBASE-21559) | The RestoreSnapshotFromClientTestBase related UT are flaky | Major | . |
+| [HBASE-21551](https://issues.apache.org/jira/browse/HBASE-21551) | Memory leak when use scan with STREAM at server side | Blocker | regionserver |
+| [HBASE-21544](https://issues.apache.org/jira/browse/HBASE-21544) | Backport HBASE-20734 Colocate recovered edits directory with hbase.wal.dir | Major | wal |
+| [HBASE-21518](https://issues.apache.org/jira/browse/HBASE-21518) | TestMasterFailoverWithProcedures is flaky | Major | . |
+| [HBASE-21504](https://issues.apache.org/jira/browse/HBASE-21504) | If enable FIFOCompactionPolicy, a compaction may write a "empty" hfile whose maxTimeStamp is long max. This kind of hfile will never be archived. | Critical | Compaction |
+| [HBASE-21492](https://issues.apache.org/jira/browse/HBASE-21492) | CellCodec Written To WAL Before It's Verified | Critical | wal |
+| [HBASE-21507](https://issues.apache.org/jira/browse/HBASE-21507) | Compaction failed when execute AbstractMultiFileWriter.beforeShipped() method | Major | regionserver |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20136](https://issues.apache.org/jira/browse/HBASE-20136) | TestKeyValue misses ClassRule and Category annotations | Minor | . |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21401](https://issues.apache.org/jira/browse/HBASE-21401) | Sanity check when constructing the KeyValue | Critical | regionserver |
+| [HBASE-21570](https://issues.apache.org/jira/browse/HBASE-21570) | Add write buffer periodic flush support for AsyncBufferedMutator | Major | asyncclient, Client |
+| [HBASE-21566](https://issues.apache.org/jira/browse/HBASE-21566) | Release notes and changes for 2.0.4RC0 and 2.1.2RC0 | Major | release |
+| [HBASE-21557](https://issues.apache.org/jira/browse/HBASE-21557) | Set version to 2.0.4 on branch-2.0 so can cut an RC | Major | release |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21495](https://issues.apache.org/jira/browse/HBASE-21495) | Create 2.0.3 Release | Major | . |
+| [HBASE-21517](https://issues.apache.org/jira/browse/HBASE-21517) | Move the getTableRegionForRow method from HMaster to TestMaster | Major | test |
+
+
+
+
+## Release 2.0.3 - Released 2018-12-02
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21158](https://issues.apache.org/jira/browse/HBASE-21158) | Empty qualifier cell should not be returned if it does not match QualifierFilter | Critical | Filters |
+| [HBASE-21223](https://issues.apache.org/jira/browse/HBASE-21223) | [amv2] Remove abort\_procedure from shell | Critical | amv2, hbck2, shell |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21480](https://issues.apache.org/jira/browse/HBASE-21480) | Taking snapshot when RS crashes prevent we bring the regions online | Major | snapshots |
+| [HBASE-21388](https://issues.apache.org/jira/browse/HBASE-21388) | No need to instantiate MemStoreLAB for master which not carry table | Major | . |
+| [HBASE-21385](https://issues.apache.org/jira/browse/HBASE-21385) | HTable.delete request use rpc call directly instead of AsyncProcess | Major | . |
+| [HBASE-21263](https://issues.apache.org/jira/browse/HBASE-21263) | Mention compression algorithm along with other storefile details | Minor | . |
+| [HBASE-21290](https://issues.apache.org/jira/browse/HBASE-21290) | No need to instantiate BlockCache for master which not carry table | Major | . |
+| [HBASE-21251](https://issues.apache.org/jira/browse/HBASE-21251) | Refactor RegionMover | Major | Operability |
+| [HBASE-21303](https://issues.apache.org/jira/browse/HBASE-21303) | [shell] clear\_deadservers with no args fails | Major | . |
+| [HBASE-21289](https://issues.apache.org/jira/browse/HBASE-21289) | Remove the log "'hbase.regionserver.maxlogs' was deprecated." in AbstractFSWAL | Minor | . |
+| [HBASE-21185](https://issues.apache.org/jira/browse/HBASE-21185) | WALPrettyPrinter: Additional useful info to be printed by wal printer tool, for debugability purposes | Minor | Operability |
+| [HBASE-21103](https://issues.apache.org/jira/browse/HBASE-21103) | nightly test cache of yetus install needs to be more thorough in verification | Major | test |
+| [HBASE-20307](https://issues.apache.org/jira/browse/HBASE-20307) | LoadTestTool prints too much zookeeper logging | Minor | tooling |
+| [HBASE-21157](https://issues.apache.org/jira/browse/HBASE-21157) | Split TableInputFormatScan to individual tests | Minor | test |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21440](https://issues.apache.org/jira/browse/HBASE-21440) | Assign procedure on the crashed server is not properly interrupted | Major | . |
+| [HBASE-21468](https://issues.apache.org/jira/browse/HBASE-21468) | separate workers for meta table is not working | Major | . |
+| [HBASE-21445](https://issues.apache.org/jira/browse/HBASE-21445) | CopyTable by bulkload will write hfile into yarn's HDFS | Major | mapreduce |
+| [HBASE-21437](https://issues.apache.org/jira/browse/HBASE-21437) | Bypassed procedure throw IllegalArgumentException when its state is WAITING\_TIMEOUT | Major | . |
+| [HBASE-21439](https://issues.apache.org/jira/browse/HBASE-21439) | StochasticLoadBalancer RegionLoads arenât being used in RegionLoad cost functions | Major | Balancer |
+| [HBASE-20604](https://issues.apache.org/jira/browse/HBASE-20604) | ProtobufLogReader#readNext can incorrectly loop to the same position in the stream until the the WAL is rolled | Critical | Replication, wal |
+| [HBASE-21438](https://issues.apache.org/jira/browse/HBASE-21438) | TestAdmin2#testGetProcedures fails due to FailedProcedure inaccessible | Major | . |
+| [HBASE-21425](https://issues.apache.org/jira/browse/HBASE-21425) | 2.1.1 fails to start over 1.x data; namespace not assigned | Critical | amv2 |
+| [HBASE-21407](https://issues.apache.org/jira/browse/HBASE-21407) | Resolve NPE in backup Master UI | Minor | UI |
+| [HBASE-21424](https://issues.apache.org/jira/browse/HBASE-21424) | Change flakies and nightlies so scheduled less often | Major | build |
+| [HBASE-21417](https://issues.apache.org/jira/browse/HBASE-21417) | Pre commit build is broken due to surefire plugin crashes | Critical | build |
+| [HBASE-21371](https://issues.apache.org/jira/browse/HBASE-21371) | Hbase unable to compile against Hadoop trunk (3.3.0-SNAPSHOT) due to license error | Major | . |
+| [HBASE-21344](https://issues.apache.org/jira/browse/HBASE-21344) | hbase:meta location in ZooKeeper set to OPENING by the procedure which eventually failed but precludes Master from assigning it forever | Major | proc-v2 |
+| [HBASE-21342](https://issues.apache.org/jira/browse/HBASE-21342) | FileSystem in use may get closed by other bulk load call in secure bulkLoad | Major | . |
+| [HBASE-21349](https://issues.apache.org/jira/browse/HBASE-21349) | Cluster is going down but CatalogJanitor and Normalizer try to run and fail noisely | Minor | . |
+| [HBASE-21356](https://issues.apache.org/jira/browse/HBASE-21356) | bulkLoadHFile API should ensure that rs has the source hfile's write permission | Major | . |
+| [HBASE-21355](https://issues.apache.org/jira/browse/HBASE-21355) | HStore's storeSize is calculated repeatedly which causing the confusing region split | Blocker | regionserver |
+| [HBASE-21334](https://issues.apache.org/jira/browse/HBASE-21334) | TestMergeTableRegionsProcedure is flakey | Major | amv2, proc-v2, test |
+| [HBASE-21178](https://issues.apache.org/jira/browse/HBASE-21178) | [BC break] : Get and Scan operation with a custom converter\_class not working | Critical | shell |
+| [HBASE-21242](https://issues.apache.org/jira/browse/HBASE-21242) | [amv2] Miscellaneous minor log and assign procedure create improvements | Minor | amv2, Operability |
+| [HBASE-21348](https://issues.apache.org/jira/browse/HBASE-21348) | Fix failing TestRegionBypass, broke by HBASE-21291 | Major | hbck2 |
+| [HBASE-21345](https://issues.apache.org/jira/browse/HBASE-21345) | [hbck2] Allow version check to proceed even though master is 'initializing'. | Major | hbck2 |
+| [HBASE-21200](https://issues.apache.org/jira/browse/HBASE-21200) | Memstore flush doesn't finish because of seekToPreviousRow() in memstore scanner. | Critical | Scanners |
+| [HBASE-21292](https://issues.apache.org/jira/browse/HBASE-21292) | IdLock.getLockEntry() may hang if interrupted | Major | . |
+| [HBASE-21335](https://issues.apache.org/jira/browse/HBASE-21335) | Change the default wait time of HBCK2 tool | Critical | . |
+| [HBASE-21291](https://issues.apache.org/jira/browse/HBASE-21291) | Add a test for bypassing stuck state-machine procedures | Major | . |
+| [HBASE-21055](https://issues.apache.org/jira/browse/HBASE-21055) | NullPointerException when balanceOverall() but server balance info is null | Major | Balancer |
+| [HBASE-21327](https://issues.apache.org/jira/browse/HBASE-21327) | Fix minor logging issue where we don't report servername if no associated SCP | Trivial | amv2 |
+| [HBASE-21320](https://issues.apache.org/jira/browse/HBASE-21320) | [canary] Cleanup of usage and add commentary | Major | canary |
+| [HBASE-21266](https://issues.apache.org/jira/browse/HBASE-21266) | Not running balancer because processing dead regionservers, but empty dead rs list | Major | . |
+| [HBASE-21260](https://issues.apache.org/jira/browse/HBASE-21260) | The whole balancer plans might be aborted if there are more than one plans to move a same region | Major | Balancer, master |
+| [HBASE-21271](https://issues.apache.org/jira/browse/HBASE-21271) | [amv2] Don't throw UnsupportedOperationException when rollback called on Assign/Unassign; spiral of death | Major | amv2 |
+| [HBASE-21259](https://issues.apache.org/jira/browse/HBASE-21259) | [amv2] Revived deadservers; recreated serverstatenode | Critical | amv2 |
+| [HBASE-21280](https://issues.apache.org/jira/browse/HBASE-21280) | Add anchors for each heading in UI | Trivial | UI, Usability |
+| [HBASE-20764](https://issues.apache.org/jira/browse/HBASE-20764) | build broken when latest commit is gpg signed | Critical | build |
+| [HBASE-21196](https://issues.apache.org/jira/browse/HBASE-21196) | HTableMultiplexer clears the meta cache after every put operation | Critical | Performance |
+| [HBASE-21228](https://issues.apache.org/jira/browse/HBASE-21228) | Memory leak since AbstractFSWAL caches Thread object and never clean later | Critical | wal |
+| [HBASE-21212](https://issues.apache.org/jira/browse/HBASE-21212) | Wrong flush time when update flush metric | Minor | . |
+| [HBASE-21208](https://issues.apache.org/jira/browse/HBASE-21208) | Bytes#toShort doesn't work without unsafe | Critical | . |
+| [HBASE-20704](https://issues.apache.org/jira/browse/HBASE-20704) | Sometimes some compacted storefiles are not archived on region close | Critical | Compaction |
+| [HBASE-21203](https://issues.apache.org/jira/browse/HBASE-21203) | TestZKMainServer#testCommandLineWorks won't pass with default 4lw whitelist | Minor | test, Zookeeper |
+| [HBASE-21206](https://issues.apache.org/jira/browse/HBASE-21206) | Scan with batch size may return incomplete cells | Critical | scan |
+| [HBASE-21179](https://issues.apache.org/jira/browse/HBASE-21179) | Fix the number of actions in responseTooSlow log | Major | logging, rpc |
+| [HBASE-21174](https://issues.apache.org/jira/browse/HBASE-21174) | [REST] Failed to parse empty qualifier in TableResource#getScanResource | Major | REST |
+| [HBASE-21181](https://issues.apache.org/jira/browse/HBASE-21181) | Use the same filesystem for wal archive directory and wal directory | Major | . |
+| [HBASE-21144](https://issues.apache.org/jira/browse/HBASE-21144) | AssignmentManager.waitForAssignment is not stable | Major | amv2, test |
+| [HBASE-21143](https://issues.apache.org/jira/browse/HBASE-21143) | Update findbugs-maven-plugin to 3.0.4 | Major | pom |
+| [HBASE-21001](https://issues.apache.org/jira/browse/HBASE-21001) | ReplicationObserver fails to load in HBase 2.0.0 | Major | . |
+| [HBASE-21127](https://issues.apache.org/jira/browse/HBASE-21127) | TableRecordReader need to handle cursor result too | Major | . |
+| [HBASE-20892](https://issues.apache.org/jira/browse/HBASE-20892) | [UI] Start / End keys are empty on table.jsp | Major | . |
+| [HBASE-21132](https://issues.apache.org/jira/browse/HBASE-21132) | return wrong result in rest multiget | Major | . |
+| [HBASE-20940](https://issues.apache.org/jira/browse/HBASE-20940) | HStore.cansplit should not allow split to happen if it has references | Major | . |
+| [HBASE-20506](https://issues.apache.org/jira/browse/HBASE-20506) | Add doc and test for unused RetryCounter, useful-looking utility | Minor | . |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21261](https://issues.apache.org/jira/browse/HBASE-21261) | Add log4j.properties for hbase-rsgroup tests | Trivial | . |
+| [HBASE-21097](https://issues.apache.org/jira/browse/HBASE-21097) | Flush pressure assertion may fail in testFlushThroughputTuning | Major | regionserver |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21490](https://issues.apache.org/jira/browse/HBASE-21490) | WALProcedure may remove proc wal files still with active procedures | Major | proc-v2 |
+| [HBASE-21497](https://issues.apache.org/jira/browse/HBASE-21497) | Copy down docs for 2.0.3 release | Major | documentation |
+| [HBASE-21496](https://issues.apache.org/jira/browse/HBASE-21496) | Set version to 2.0.3 on branch-2.0 in prep for first RC | Major | . |
+| [HBASE-21473](https://issues.apache.org/jira/browse/HBASE-21473) | RowIndexSeekerV1 may return cell with extra two \\x00\\x00 bytes which has no tags | Major | . |
+| [HBASE-21423](https://issues.apache.org/jira/browse/HBASE-21423) | Procedures for meta table/region should be able to execute in separate workers | Major | . |
+| [HBASE-21376](https://issues.apache.org/jira/browse/HBASE-21376) | Add some verbose log to MasterProcedureScheduler | Major | logging, proc-v2 |
+| [HBASE-21401](https://issues.apache.org/jira/browse/HBASE-21401) | Sanity check in BaseDecoder#parseCell | Critical | regionserver |
+| [HBASE-21421](https://issues.apache.org/jira/browse/HBASE-21421) | Do not kill RS if reportOnlineRegions fails | Major | . |
+| [HBASE-21314](https://issues.apache.org/jira/browse/HBASE-21314) | The implementation of BitSetNode is not efficient | Major | proc-v2 |
+| [HBASE-21395](https://issues.apache.org/jira/browse/HBASE-21395) | Abort split/merge procedure if there is a table procedure of the same table going on | Major | . |
+| [HBASE-21351](https://issues.apache.org/jira/browse/HBASE-21351) | The force update thread may have race with PE worker when the procedure is rolling back | Critical | proc-v2 |
+| [HBASE-21191](https://issues.apache.org/jira/browse/HBASE-21191) | Add a holding-pattern if no assign for meta or namespace (Can happen if masterprocwals have been cleared). | Major | amv2 |
+| [HBASE-21237](https://issues.apache.org/jira/browse/HBASE-21237) | Use CompatRemoteProcedureResolver to dispatch open/close region requests to RS | Blocker | . |
+| [HBASE-21322](https://issues.apache.org/jira/browse/HBASE-21322) | Add a scheduleServerCrashProcedure() API to HbckService | Major | hbck2 |
+| [HBASE-21375](https://issues.apache.org/jira/browse/HBASE-21375) | Revisit the lock and queue implementation in MasterProcedureScheduler | Major | proc-v2 |
+| [HBASE-20973](https://issues.apache.org/jira/browse/HBASE-20973) | ArrayIndexOutOfBoundsException when rolling back procedure | Critical | amv2 |
+| [HBASE-21384](https://issues.apache.org/jira/browse/HBASE-21384) | Procedure with holdlock=false should not be restored lock when restarts | Blocker | . |
+| [HBASE-21364](https://issues.apache.org/jira/browse/HBASE-21364) | Procedure holds the lock should put to front of the queue after restart | Blocker | . |
+| [HBASE-21215](https://issues.apache.org/jira/browse/HBASE-21215) | Figure how to invoke hbck2; make it easy to find | Major | amv2, hbck2 |
+| [HBASE-21372](https://issues.apache.org/jira/browse/HBASE-21372) | Set hbase.assignment.maximum.attempts to Long.MAX | Major | amv2 |
+| [HBASE-21363](https://issues.apache.org/jira/browse/HBASE-21363) | Rewrite the buildingHoldCleanupTracker method in WALProcedureStore | Major | proc-v2 |
+| [HBASE-21338](https://issues.apache.org/jira/browse/HBASE-21338) | [balancer] If balancer is an ill-fit for cluster size, it gives little indication | Major | Balancer, Operability |
+| [HBASE-21192](https://issues.apache.org/jira/browse/HBASE-21192) | Add HOW-TO repair damaged AMv2. | Major | amv2 |
+| [HBASE-21073](https://issues.apache.org/jira/browse/HBASE-21073) | "Maintenance mode" master | Major | amv2, hbck2, master |
+| [HBASE-21354](https://issues.apache.org/jira/browse/HBASE-21354) | Procedure may be deleted improperly during master restarts resulting in 'Corrupt' | Major | . |
+| [HBASE-21321](https://issues.apache.org/jira/browse/HBASE-21321) | Backport HBASE-21278 to branch-2.1 and branch-2.0 | Critical | . |
+| [HBASE-21336](https://issues.apache.org/jira/browse/HBASE-21336) | Simplify the implementation of WALProcedureMap | Major | proc-v2 |
+| [HBASE-21323](https://issues.apache.org/jira/browse/HBASE-21323) | Should not skip force updating for a sub procedure even if it has been finished | Major | proc-v2 |
+| [HBASE-21075](https://issues.apache.org/jira/browse/HBASE-21075) | Confirm that we can (rolling) upgrade from 2.0.x and 2.1.x to 2.2.x after HBASE-20881 | Blocker | amv2, proc-v2 |
+| [HBASE-21288](https://issues.apache.org/jira/browse/HBASE-21288) | HostingServer in UnassignProcedure is not accurate | Major | amv2, Balancer |
+| [HBASE-21310](https://issues.apache.org/jira/browse/HBASE-21310) | Split TestCloneSnapshotFromClient | Major | test |
+| [HBASE-21311](https://issues.apache.org/jira/browse/HBASE-21311) | Split TestRestoreSnapshotFromClient | Major | test |
+| [HBASE-21315](https://issues.apache.org/jira/browse/HBASE-21315) | The getActiveMinProcId and getActiveMaxProcId of BitSetNode are incorrect if there are no active procedure | Major | . |
+| [HBASE-21309](https://issues.apache.org/jira/browse/HBASE-21309) | Increase the waiting timeout for TestProcedurePriority | Major | test |
+| [HBASE-21254](https://issues.apache.org/jira/browse/HBASE-21254) | Need to find a way to limit the number of proc wal files | Critical | proc-v2 |
+| [HBASE-21268](https://issues.apache.org/jira/browse/HBASE-21268) | Backport to branch-2.0 " HBASE-21213 [hbck2] bypass leaves behind state in RegionStates when assign/unassign" | Major | amv2 |
+| [HBASE-21250](https://issues.apache.org/jira/browse/HBASE-21250) | Refactor WALProcedureStore and add more comments for better understanding the implementation | Major | proc-v2 |
+| [HBASE-19275](https://issues.apache.org/jira/browse/HBASE-19275) | TestSnapshotFileCache never worked properly | Major | . |
+| [HBASE-21249](https://issues.apache.org/jira/browse/HBASE-21249) | Add jitter for ProcedureUtil.getBackoffTimeMs | Major | proc-v2 |
+| [HBASE-21233](https://issues.apache.org/jira/browse/HBASE-21233) | Allow the procedure implementation to skip persistence of the state after a execution | Major | Performance, proc-v2 |
+| [HBASE-21172](https://issues.apache.org/jira/browse/HBASE-21172) | Reimplement the retry backoff logic for ReopenTableRegionsProcedure | Major | amv2, proc-v2 |
+| [HBASE-21189](https://issues.apache.org/jira/browse/HBASE-21189) | flaky job should gather machine stats | Minor | test |
+| [HBASE-21190](https://issues.apache.org/jira/browse/HBASE-21190) | Log files and count of entries in each as we load from the MasterProcWAL store | Major | amv2 |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20152](https://issues.apache.org/jira/browse/HBASE-20152) | [AMv2] DisableTableProcedure versus ServerCrashProcedure | Major | amv2 |
+| [HBASE-20540](https://issues.apache.org/jira/browse/HBASE-20540) | [umbrella] Hadoop 3 compatibility | Major | . |
+| [HBASE-21198](https://issues.apache.org/jira/browse/HBASE-21198) | Exclude dependency on net.minidev:json-smart | Major | . |
+| [HBASE-21293](https://issues.apache.org/jira/browse/HBASE-21293) | [2.0] Update bouncycastle dependency. | Major | dependencies, test |
+| [HBASE-21287](https://issues.apache.org/jira/browse/HBASE-21287) | JVMClusterUtil Master initialization wait time not configurable | Major | test |
+| [HBASE-20482](https://issues.apache.org/jira/browse/HBASE-20482) | Print a link to the ref guide chapter for the shell during startup | Minor | documentation, shell |
+
+
+
+## Release 2.0.2 - Released 2018-09-02
+
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20884](https://issues.apache.org/jira/browse/HBASE-20884) | Replace usage of our Base64 implementation with java.util.Base64 | Major | . |
+| [HBASE-20691](https://issues.apache.org/jira/browse/HBASE-20691) | Storage policy should allow deferring to HDFS | Blocker | Filesystem Integration, wal |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20649](https://issues.apache.org/jira/browse/HBASE-20649) | Validate HFiles do not have PREFIX\_TREE DataBlockEncoding | Minor | Operability, tooling |
+| [HBASE-20833](https://issues.apache.org/jira/browse/HBASE-20833) | Modify pre-upgrade coprocessor validator to support table level coprocessors | Major | Coprocessors |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20387](https://issues.apache.org/jira/browse/HBASE-20387) | flaky infrastructure should work for all branches | Critical | test |
+| [HBASE-20979](https://issues.apache.org/jira/browse/HBASE-20979) | Flaky test reporting should specify what JSON it needs and handle HTTP errors | Minor | test |
+| [HBASE-20856](https://issues.apache.org/jira/browse/HBASE-20856) | PITA having to set WAL provider in two places | Minor | Operability, wal |
+| [HBASE-20935](https://issues.apache.org/jira/browse/HBASE-20935) | HStore.removeCompactedFiles should log in case it is unable to delete a file | Minor | . |
+| [HBASE-20873](https://issues.apache.org/jira/browse/HBASE-20873) | Update doc for Endpoint-based Export | Minor | documentation |
+| [HBASE-20806](https://issues.apache.org/jira/browse/HBASE-20806) | Split style journal for flushes and compactions | Minor | . |
+| [HBASE-20474](https://issues.apache.org/jira/browse/HBASE-20474) | Show non-RPC tasks on master/regionserver Web UI by default | Major | UI |
+| [HBASE-20826](https://issues.apache.org/jira/browse/HBASE-20826) | Truncate responseInfo attributes on RpcServer WARN messages | Major | rpc |
+| [HBASE-20810](https://issues.apache.org/jira/browse/HBASE-20810) | Include the procedure id in the exception message in HBaseAdmin for better debugging | Major | Admin, proc-v2 |
+| [HBASE-20733](https://issues.apache.org/jira/browse/HBASE-20733) | QABot should run checkstyle tests if the checkstyle configs change | Minor | build, community |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20968](https://issues.apache.org/jira/browse/HBASE-20968) | list\_procedures\_test fails due to no matching regex | Major | shell, test |
+| [HBASE-21088](https://issues.apache.org/jira/browse/HBASE-21088) | HStoreFile should be closed in HStore#hasReferences | Major | . |
+| [HBASE-21120](https://issues.apache.org/jira/browse/HBASE-21120) | MoveRegionProcedure makes no progress; goes to STUCK | Major | amv2 |
+| [HBASE-20772](https://issues.apache.org/jira/browse/HBASE-20772) | Controlled shutdown fills Master log with the disturbing message "No matching procedure found for rit=OPEN, location=ZZZZ, table=YYYYY, region=XXXX transition to CLOSED | Major | logging |
+| [HBASE-20978](https://issues.apache.org/jira/browse/HBASE-20978) | [amv2] Worker terminating UNNATURALLY during MoveRegionProcedure | Critical | amv2 |
+| [HBASE-21078](https://issues.apache.org/jira/browse/HBASE-21078) | [amv2] CODE-BUG NPE in RTP doing Unassign | Major | amv2 |
+| [HBASE-21113](https://issues.apache.org/jira/browse/HBASE-21113) | Apply the branch-2 version of HBASE-21095, The timeout retry logic for several procedures are broken after master restarts | Major | amv2 |
+| [HBASE-21101](https://issues.apache.org/jira/browse/HBASE-21101) | Remove the waitUntilAllRegionsAssigned call after split in TestTruncateTableProcedure | Major | test |
+| [HBASE-20614](https://issues.apache.org/jira/browse/HBASE-20614) | REST scan API with incorrect filter text file throws HTTP 503 Service Unavailable error | Minor | REST |
+| [HBASE-20648](https://issues.apache.org/jira/browse/HBASE-20648) | HBASE-19364 "Truncate\_preserve fails with table when replica region \> 1" for master branch | Major | . |
+| [HBASE-21041](https://issues.apache.org/jira/browse/HBASE-21041) | Memstore's heap size will be decreased to minus zero after flush | Major | . |
+| [HBASE-21031](https://issues.apache.org/jira/browse/HBASE-21031) | Memory leak if replay edits failed during region opening | Major | . |
+| [HBASE-20705](https://issues.apache.org/jira/browse/HBASE-20705) | Having RPC Quota on a table prevents Space quota to be recreated/removed | Major | . |
+| [HBASE-21058](https://issues.apache.org/jira/browse/HBASE-21058) | Nightly tests for branches 1 fail to build ref guide | Major | documentation |
+| [HBASE-21074](https://issues.apache.org/jira/browse/HBASE-21074) | JDK7 branches need to pass "-Dhttps.protocols=TLSv1.2" to maven when building | Major | build, community, test |
+| [HBASE-21062](https://issues.apache.org/jira/browse/HBASE-21062) | WALFactory has misleading notion of "default" | Major | wal |
+| [HBASE-21047](https://issues.apache.org/jira/browse/HBASE-21047) | Object creation of StoreFileScanner thru constructor and close may leave refCount to -1 | Major | . |
+| [HBASE-21005](https://issues.apache.org/jira/browse/HBASE-21005) | Maven site configuration causes downstream projects to get a directory named ${project.basedir} | Minor | build |
+| [HBASE-21029](https://issues.apache.org/jira/browse/HBASE-21029) | Miscount of memstore's heap/offheap size if same cell was put | Major | . |
+| [HBASE-20981](https://issues.apache.org/jira/browse/HBASE-20981) | Rollback stateCount accounting thrown-off when exception out of rollbackState | Major | amv2 |
+| [HBASE-21018](https://issues.apache.org/jira/browse/HBASE-21018) | RS crashed because AsyncFS was unable to update HDFS data encryption key | Critical | wal |
+| [HBASE-21007](https://issues.apache.org/jira/browse/HBASE-21007) | Memory leak in HBase rest server | Critical | REST |
+| [HBASE-20924](https://issues.apache.org/jira/browse/HBASE-20924) | Backport "HBASE-20846 Restore procedure locks when master restarts" | Major | amv2 |
+| [HBASE-20871](https://issues.apache.org/jira/browse/HBASE-20871) | Backport HBASE-20847 to branch-2.0: "The parent procedure of RegionTransitionProcedure may not have the table lock" | Critical | amv2 |
+| [HBASE-20829](https://issues.apache.org/jira/browse/HBASE-20829) | Remove the addFront assertion in MasterProcedureScheduler.doAdd | Major | Replication |
+| [HBASE-20996](https://issues.apache.org/jira/browse/HBASE-20996) | Backport to branch-2.0 HBASE-20722 "Make RegionServerTracker only depend on children changed event" | Major | . |
+| [HBASE-20794](https://issues.apache.org/jira/browse/HBASE-20794) | CreateTable operation does not log its landing at the master nor the initiator at INFO level | Major | logging |
+| [HBASE-20538](https://issues.apache.org/jira/browse/HBASE-20538) | Upgrade our hadoop versions to 2.7.7 and 3.0.3 | Critical | java, security |
+| [HBASE-20565](https://issues.apache.org/jira/browse/HBASE-20565) | ColumnRangeFilter combined with ColumnPaginationFilter can produce incorrect result since 1.4 | Major | Filters |
+| [HBASE-20917](https://issues.apache.org/jira/browse/HBASE-20917) | MetaTableMetrics#stop references uninitialized requestsMap for non-meta region | Major | . |
+| [HBASE-20870](https://issues.apache.org/jira/browse/HBASE-20870) | Wrong HBase root dir in ITBLL's Search Tool | Minor | integration tests |
+| [HBASE-20903](https://issues.apache.org/jira/browse/HBASE-20903) | backport HBASE-20792 "info:servername and info:sn inconsistent for OPEN region" to branch-2.0 | Major | . |
+| [HBASE-20869](https://issues.apache.org/jira/browse/HBASE-20869) | Endpoint-based Export use incorrect user to write to destination | Major | Coprocessors |
+| [HBASE-19572](https://issues.apache.org/jira/browse/HBASE-19572) | RegionMover should use the configured default port number and not the one from HConstants | Major | . |
+| [HBASE-20697](https://issues.apache.org/jira/browse/HBASE-20697) | Can't cache All region locations of the specify table by calling table.getRegionLocator().getAllRegionLocations() | Major | meta |
+| [HBASE-20854](https://issues.apache.org/jira/browse/HBASE-20854) | Wrong retries number in RpcRetryingCaller's log message | Minor | Client, logging |
+| [HBASE-20822](https://issues.apache.org/jira/browse/HBASE-20822) | TestAsyncNonMetaRegionLocator is flakey | Major | asyncclient |
+| [HBASE-20789](https://issues.apache.org/jira/browse/HBASE-20789) | TestBucketCache#testCacheBlockNextBlockMetadataMissing is flaky | Major | . |
+| [HBASE-20825](https://issues.apache.org/jira/browse/HBASE-20825) | Fix pre and post hooks of CloneSnapshot and RestoreSnapshot for Access checks | Major | security |
+| [HBASE-20812](https://issues.apache.org/jira/browse/HBASE-20812) | Add defaults to Table Interface so implementors don't have to | Major | . |
+| [HBASE-20817](https://issues.apache.org/jira/browse/HBASE-20817) | Infinite loop when executing ReopenTableRegionsProcedure | Blocker | Region Assignment |
+| [HBASE-20769](https://issues.apache.org/jira/browse/HBASE-20769) | getSplits() has a out of bounds problem in TableSnapshotInputFormatImpl | Major | . |
+| [HBASE-20785](https://issues.apache.org/jira/browse/HBASE-20785) | NPE getting metrics in PE testing scans | Major | Performance |
+| [HBASE-20795](https://issues.apache.org/jira/browse/HBASE-20795) | Allow option in BBKVComparator.compare to do comparison without sequence id | Major | . |
+| [HBASE-20777](https://issues.apache.org/jira/browse/HBASE-20777) | RpcConnection could still remain opened after we shutdown the NettyRpcServer | Major | rpc |
+| [HBASE-20403](https://issues.apache.org/jira/browse/HBASE-20403) | Prefetch sometimes doesn't work with encrypted file system | Major | . |
+| [HBASE-20770](https://issues.apache.org/jira/browse/HBASE-20770) | WAL cleaner logs way too much; gets clogged when lots of work to do | Critical | logging |
+| [HBASE-20778](https://issues.apache.org/jira/browse/HBASE-20778) | Make it so WALPE runs on DFS | Major | test |
+| [HBASE-20752](https://issues.apache.org/jira/browse/HBASE-20752) | Make sure the regions are truly reopened after ReopenTableRegionsProcedure | Major | proc-v2 |
+| [HBASE-18622](https://issues.apache.org/jira/browse/HBASE-18622) | Mitigate API compatibility concerns between branch-1 and branch-2 | Blocker | API |
+| [HBASE-20767](https://issues.apache.org/jira/browse/HBASE-20767) | Always close hbaseAdmin along with connection in HBTU | Major | test |
+| [HBASE-20642](https://issues.apache.org/jira/browse/HBASE-20642) | IntegrationTestDDLMasterFailover throws 'InvalidFamilyOperationException | Major | . |
+| [HBASE-20765](https://issues.apache.org/jira/browse/HBASE-20765) | Move branch-2.0 version to 2.0.2-SNAPSHOT from 2.0.1 | Trivial | . |
+| [HBASE-20681](https://issues.apache.org/jira/browse/HBASE-20681) | IntegrationTestDriver fails after HADOOP-15406 due to missing hamcrest-core | Major | integration tests |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21076](https://issues.apache.org/jira/browse/HBASE-21076) | TestTableResource fails with NPE | Major | REST, test |
+| [HBASE-20907](https://issues.apache.org/jira/browse/HBASE-20907) | Fix Intermittent failure on TestProcedurePriority | Major | . |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21054](https://issues.apache.org/jira/browse/HBASE-21054) | Copy down docs, amend to suite branch-2.0, and then commit | Major | documentation |
+| [HBASE-21083](https://issues.apache.org/jira/browse/HBASE-21083) | Introduce a mechanism to bypass the execution of a stuck procedure | Major | amv2 |
+| [HBASE-20941](https://issues.apache.org/jira/browse/HBASE-20941) | Create and implement HbckService in master | Major | . |
+| [HBASE-21072](https://issues.apache.org/jira/browse/HBASE-21072) | Block out HBCK1 in hbase2 | Major | hbck |
+| [HBASE-21093](https://issues.apache.org/jira/browse/HBASE-21093) | Move TestCreateTableProcedure.testMRegions to a separated file | Major | test |
+| [HBASE-21094](https://issues.apache.org/jira/browse/HBASE-21094) | Remove the explicit timeout config for TestTruncateTableProcedure | Major | test |
+| [HBASE-21050](https://issues.apache.org/jira/browse/HBASE-21050) | Exclusive lock may be held by a SUCCESS state procedure forever | Major | amv2 |
+| [HBASE-21046](https://issues.apache.org/jira/browse/HBASE-21046) | Set version to 2.0.2 on branch-2.0 in prep for first RC | Major | . |
+| [HBASE-21044](https://issues.apache.org/jira/browse/HBASE-21044) | Disable flakey TestShell list\_procedures | Major | test |
+| [HBASE-20975](https://issues.apache.org/jira/browse/HBASE-20975) | Lock may not be taken or released while rolling back procedure | Major | amv2 |
+| [HBASE-21025](https://issues.apache.org/jira/browse/HBASE-21025) | Add cache for TableStateManager | Major | . |
+| [HBASE-21012](https://issues.apache.org/jira/browse/HBASE-21012) | Revert the change of serializing TimeRangeTracker | Critical | . |
+| [HBASE-20813](https://issues.apache.org/jira/browse/HBASE-20813) | Remove RPC quotas when the associated table/Namespace is dropped off | Minor | . |
+| [HBASE-21009](https://issues.apache.org/jira/browse/HBASE-21009) | Backport to branch-2.0 HBASE-20739 "Add priority for SCP" | Major | amv2 |
+| [HBASE-21004](https://issues.apache.org/jira/browse/HBASE-21004) | Backport to branch-2.0 HBASE-20708 "Remove the usage of RecoverMetaProcedure" | Major | amv2 |
+| [HBASE-20885](https://issues.apache.org/jira/browse/HBASE-20885) | Remove entry for RPC quota from hbase:quota when RPC quota is removed. | Minor | . |
+| [HBASE-20893](https://issues.apache.org/jira/browse/HBASE-20893) | Data loss if splitting region while ServerCrashProcedure executing | Major | . |
+| [HBASE-19369](https://issues.apache.org/jira/browse/HBASE-19369) | HBase Should use Builder Pattern to Create Log Files while using WAL on Erasure Coding | Major | . |
+| [HBASE-20921](https://issues.apache.org/jira/browse/HBASE-20921) | Possible NPE in ReopenTableRegionsProcedure | Major | amv2 |
+| [HBASE-20867](https://issues.apache.org/jira/browse/HBASE-20867) | RS may get killed while master restarts | Major | . |
+| [HBASE-20878](https://issues.apache.org/jira/browse/HBASE-20878) | Data loss if merging regions while ServerCrashProcedure executing | Critical | amv2 |
+| [HBASE-20914](https://issues.apache.org/jira/browse/HBASE-20914) | Trim Master memory usage | Major | master |
+| [HBASE-20853](https://issues.apache.org/jira/browse/HBASE-20853) | Polish "Add defaults to Table Interface so Implementors don't have to" | Major | API |
+| [HBASE-20875](https://issues.apache.org/jira/browse/HBASE-20875) | MemStoreLABImp::copyIntoCell uses 7% CPU when writing | Major | Performance |
+| [HBASE-20860](https://issues.apache.org/jira/browse/HBASE-20860) | Merged region's RIT state may not be cleaned after master restart | Major | . |
+| [HBASE-20887](https://issues.apache.org/jira/browse/HBASE-20887) | Backport HBASE-20865 "CreateTableProcedure is stuck in retry loop in CREATE\_TABLE\_WRITE\_FS\_LAYOUT state" | Major | backport |
+| [HBASE-20847](https://issues.apache.org/jira/browse/HBASE-20847) | The parent procedure of RegionTransitionProcedure may not have the table lock | Major | proc-v2, Region Assignment |
+| [HBASE-20839](https://issues.apache.org/jira/browse/HBASE-20839) | Fallback to FSHLog if we can not instantiated AsyncFSWAL when user does not specify AsyncFSWAL explicitly | Blocker | wal |
+| [HBASE-20244](https://issues.apache.org/jira/browse/HBASE-20244) | NoSuchMethodException when retrieving private method decryptEncryptedDataEncryptionKey from DFSClient | Blocker | wal |
+| [HBASE-19722](https://issues.apache.org/jira/browse/HBASE-19722) | Meta query statistics metrics source | Major | . |
+| [HBASE-20781](https://issues.apache.org/jira/browse/HBASE-20781) | Save recalculating families in a WALEdit batch of Cells | Major | Performance |
+| [HBASE-20780](https://issues.apache.org/jira/browse/HBASE-20780) | ServerRpcConnection logging cleanup | Major | logging, Performance |
+| [HBASE-19764](https://issues.apache.org/jira/browse/HBASE-19764) | Fix Checkstyle errors in hbase-endpoint | Minor | . |
+| [HBASE-20710](https://issues.apache.org/jira/browse/HBASE-20710) | extra cloneFamily() in Mutation.add(Cell) | Minor | regionserver |
+| [HBASE-20706](https://issues.apache.org/jira/browse/HBASE-20706) | [hack] Don't add known not-OPEN regions in reopen phase of MTP | Critical | amv2 |
+| [HBASE-20745](https://issues.apache.org/jira/browse/HBASE-20745) | Log when master proc wal rolls | Major | debugging |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20942](https://issues.apache.org/jira/browse/HBASE-20942) | Improve RpcServer TRACE logging | Major | Operability |
+| [HBASE-20512](https://issues.apache.org/jira/browse/HBASE-20512) | document change to running tests on secure clusters | Critical | documentation, integration tests, Usability |
+| [HBASE-20989](https://issues.apache.org/jira/browse/HBASE-20989) | Minor, miscellaneous logging fixes | Trivial | logging |
+
+
+
+## Release 2.0.1 - Released June 20th, 2018
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20656](https://issues.apache.org/jira/browse/HBASE-20656) | Validate pre-2.0 coprocessors against HBase 2.0+ | Major | tooling |
+| [HBASE-20592](https://issues.apache.org/jira/browse/HBASE-20592) | Create a tool to verify tables do not have prefix tree encoding | Minor | Operability, tooling |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20640](https://issues.apache.org/jira/browse/HBASE-20640) | TestQuotaGlobalsSettingsBypass missing test category and ClassRule | Critical | test |
+| [HBASE-20548](https://issues.apache.org/jira/browse/HBASE-20548) | Master fails to startup on large clusters, refreshing block distribution | Major | . |
+| [HBASE-20567](https://issues.apache.org/jira/browse/HBASE-20567) | Pass both old and new descriptors to pre/post hooks of modify operations for table and namespace | Major | . |
+| [HBASE-20523](https://issues.apache.org/jira/browse/HBASE-20523) | PE tool should support configuring client side buffering sizes | Minor | . |
+| [HBASE-20527](https://issues.apache.org/jira/browse/HBASE-20527) | Remove unused code in MetaTableAccessor | Trivial | . |
+| [HBASE-20507](https://issues.apache.org/jira/browse/HBASE-20507) | Do not need to call recoverLease on the broken file when we fail to create a wal writer | Major | wal |
+| [HBASE-20484](https://issues.apache.org/jira/browse/HBASE-20484) | Remove the unnecessary autoboxing in FilterListBase | Trivial | . |
+| [HBASE-20327](https://issues.apache.org/jira/browse/HBASE-20327) | When qualifier is not specified, append and incr operation do not work (shell) | Minor | shell |
+| [HBASE-20389](https://issues.apache.org/jira/browse/HBASE-20389) | Move website building flags into a profile | Minor | build, website |
+| [HBASE-20379](https://issues.apache.org/jira/browse/HBASE-20379) | shadedjars yetus plugin should add a footer link | Major | test |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-19377](https://issues.apache.org/jira/browse/HBASE-19377) | Compatibility checker complaining about hash collisions | Major | community |
+| [HBASE-20689](https://issues.apache.org/jira/browse/HBASE-20689) | Docker fails to install rubocop for precommit | Blocker | build |
+| [HBASE-20698](https://issues.apache.org/jira/browse/HBASE-20698) | Master don't record right server version until new started region server call regionServerReport method | Major | proc-v2 |
+| [HBASE-20699](https://issues.apache.org/jira/browse/HBASE-20699) | QuotaCache should cancel the QuotaRefresherChore service inside its stop() | Major | . |
+| [HBASE-20590](https://issues.apache.org/jira/browse/HBASE-20590) | REST Java client is not able to negotiate with the server in the secure mode | Critical | REST, security |
+| [HBASE-20683](https://issues.apache.org/jira/browse/HBASE-20683) | Incorrect return value for PreUpgradeValidator | Critical | . |
+| [HBASE-20684](https://issues.apache.org/jira/browse/HBASE-20684) | org.apache.hadoop.hbase.client.Scan#setStopRow javadoc uses incorrect method | Trivial | Client, documentation |
+| [HBASE-20670](https://issues.apache.org/jira/browse/HBASE-20670) | NPE in HMaster#isInMaintenanceMode | Minor | . |
+| [HBASE-20634](https://issues.apache.org/jira/browse/HBASE-20634) | Reopen region while server crash can cause the procedure to be stuck | Critical | . |
+| [HBASE-12882](https://issues.apache.org/jira/browse/HBASE-12882) | Log level for org.apache.hadoop.hbase package should be configurable | Major | hbase |
+| [HBASE-20602](https://issues.apache.org/jira/browse/HBASE-20602) | hbase.master.quota.observer.ignore property seems to be not taking effect | Minor | documentation |
+| [HBASE-20661](https://issues.apache.org/jira/browse/HBASE-20661) | Move version from 2.0.0 to 2.0.1-SNAPSHOT in branch-2.0 | Major | build |
+| [HBASE-20533](https://issues.apache.org/jira/browse/HBASE-20533) | Fix the flaky TestAssignmentManagerMetrics | Major | . |
+| [HBASE-20597](https://issues.apache.org/jira/browse/HBASE-20597) | Use a lock to serialize access to a shared reference to ZooKeeperWatcher in HBaseReplicationEndpoint | Minor | Replication |
+| [HBASE-20633](https://issues.apache.org/jira/browse/HBASE-20633) | Dropping a table containing a disable violation policy fails to remove the quota upon table delete | Major | . |
+| [HBASE-20645](https://issues.apache.org/jira/browse/HBASE-20645) | Fix security\_available method in security.rb | Major | . |
+| [HBASE-20588](https://issues.apache.org/jira/browse/HBASE-20588) | Space quota change after quota violation doesn't seem to take in effect | Major | regionserver |
+| [HBASE-20638](https://issues.apache.org/jira/browse/HBASE-20638) | nightly source artifact testing should fail the stage if it's going to report an error on jira | Major | test |
+| [HBASE-20589](https://issues.apache.org/jira/browse/HBASE-20589) | Don't need to assign meta to a new RS when standby master become active | Major | . |
+| [HBASE-20591](https://issues.apache.org/jira/browse/HBASE-20591) | nightly job doesn't respect maven options | Critical | test |
+| [HBASE-20583](https://issues.apache.org/jira/browse/HBASE-20583) | SplitLogWorker should handle FileNotFoundException when split a wal | Major | . |
+| [HBASE-20571](https://issues.apache.org/jira/browse/HBASE-20571) | JMXJsonServlet generates invalid JSON if it has NaN in metrics | Major | UI |
+| [HBASE-20544](https://issues.apache.org/jira/browse/HBASE-20544) | downstream HBaseTestingUtility fails with invalid port | Blocker | test |
+| [HBASE-20411](https://issues.apache.org/jira/browse/HBASE-20411) | Ameliorate MutableSegment synchronize | Major | . |
+| [HBASE-20004](https://issues.apache.org/jira/browse/HBASE-20004) | Client is not able to execute REST queries in a secure cluster | Minor | REST, security |
+| [HBASE-20554](https://issues.apache.org/jira/browse/HBASE-20554) | "WALs outstanding" message from CleanerChore is noisy | Trivial | . |
+| [HBASE-20521](https://issues.apache.org/jira/browse/HBASE-20521) | TableOutputFormat.checkOutputSpecs conf checking sequence cause pig script run fail | Major | mapreduce |
+| [HBASE-20517](https://issues.apache.org/jira/browse/HBASE-20517) | Fix PerformanceEvaluation 'column' parameter | Major | test |
+| [HBASE-20169](https://issues.apache.org/jira/browse/HBASE-20169) | NPE when calling HBTU.shutdownMiniCluster (TestAssignmentManagerMetrics is flakey) | Critical | test |
+| [HBASE-20514](https://issues.apache.org/jira/browse/HBASE-20514) | On Master restart if table is stuck in DISABLING state, CLOSED regions should not be considered stuck in-transition | Major | amv2 |
+| [HBASE-20476](https://issues.apache.org/jira/browse/HBASE-20476) | Open sequence number could go backwards in AssignProcedure | Major | Region Assignment |
+| [HBASE-20492](https://issues.apache.org/jira/browse/HBASE-20492) | UnassignProcedure is stuck in retry loop on region stuck in OPENING state | Critical | amv2 |
+| [HBASE-18842](https://issues.apache.org/jira/browse/HBASE-18842) | The hbase shell clone\_snaphost command returns bad error message | Minor | shell |
+| [HBASE-20404](https://issues.apache.org/jira/browse/HBASE-20404) | Ugly cleanerchore complaint that dir is not empty | Major | master |
+| [HBASE-20364](https://issues.apache.org/jira/browse/HBASE-20364) | nightly job gives old results or no results for stages that timeout on SCM | Critical | test |
+| [HBASE-20335](https://issues.apache.org/jira/browse/HBASE-20335) | nightly jobs no longer contain machine information | Critical | test |
+| [HBASE-20338](https://issues.apache.org/jira/browse/HBASE-20338) | WALProcedureStore#recoverLease() should have fixed sleeps for retrying rollWriter() | Major | . |
+| [HBASE-15291](https://issues.apache.org/jira/browse/HBASE-15291) | FileSystem not closed in secure bulkLoad | Major | . |
+| [HBASE-20068](https://issues.apache.org/jira/browse/HBASE-20068) | Hadoopcheck project health check uses default maven repo instead of yetus managed ones | Major | community, test |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20667](https://issues.apache.org/jira/browse/HBASE-20667) | Rename TestGlobalThrottler to TestReplicationGlobalThrottler | Trivial | . |
+| [HBASE-20646](https://issues.apache.org/jira/browse/HBASE-20646) | TestWALProcedureStoreOnHDFS failing on branch-1 | Trivial | . |
+| [HBASE-20505](https://issues.apache.org/jira/browse/HBASE-20505) | PE should support multi column family read and write cases | Minor | . |
+| [HBASE-20513](https://issues.apache.org/jira/browse/HBASE-20513) | Collect and emit ScanMetrics in PerformanceEvaluation | Minor | test |
+| [HBASE-20414](https://issues.apache.org/jira/browse/HBASE-20414) | TestLockProcedure#testMultipleLocks may fail on slow machine | Major | . |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20721](https://issues.apache.org/jira/browse/HBASE-20721) | Set version on branch-2.0 to 2.0.1 in prep for 2.0.1 RC | Major | . |
+| [HBASE-20700](https://issues.apache.org/jira/browse/HBASE-20700) | Move meta region when server crash can cause the procedure to be stuck | Critical | master, proc-v2, Region Assignment |
+| [HBASE-20483](https://issues.apache.org/jira/browse/HBASE-20483) | [PERFORMANCE] Flushing is 2x slower in hbase2. | Major | Performance |
+| [HBASE-20702](https://issues.apache.org/jira/browse/HBASE-20702) | Processing crash, skip ONLINE'ing empty rows | Major | amv2 |
+| [HBASE-20628](https://issues.apache.org/jira/browse/HBASE-20628) | SegmentScanner does over-comparing when one flushing | Critical | Performance |
+| [HBASE-19724](https://issues.apache.org/jira/browse/HBASE-19724) | Fix Checkstyle errors in hbase-hadoop2-compat | Minor | . |
+| [HBASE-20620](https://issues.apache.org/jira/browse/HBASE-20620) | Tighter ByteBufferKeyValue Cell Comparator; part 2 | Major | Performance |
+| [HBASE-20564](https://issues.apache.org/jira/browse/HBASE-20564) | Tighter ByteBufferKeyValue Cell Comparator | Major | Performance |
+| [HBASE-20520](https://issues.apache.org/jira/browse/HBASE-20520) | Failed effort upping default HDFS blocksize, hbase.regionserver.hlog.blocksize | Major | conf |
+| [HBASE-20539](https://issues.apache.org/jira/browse/HBASE-20539) | Disable IMC; part 2 | Minor | in-memory-compaction |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20665](https://issues.apache.org/jira/browse/HBASE-20665) | "Already cached block XXX" message should be DEBUG | Minor | BlockCache |
+| [HBASE-19475](https://issues.apache.org/jira/browse/HBASE-19475) | Extend backporting strategy in documentation | Trivial | documentation |
+| [HBASE-20595](https://issues.apache.org/jira/browse/HBASE-20595) | Remove the concept of 'special tables' from rsgroups | Major | Region Assignment, rsgroup |
+| [HBASE-20415](https://issues.apache.org/jira/browse/HBASE-20415) | branches-2 don't need maven-scala-plugin | Major | build |
+| [HBASE-20112](https://issues.apache.org/jira/browse/HBASE-20112) | Include test results from nightly hadoop3 tests in jenkins test results | Critical | test |
+
+## Release 2.0.0 - Unreleased (as of 2018-04-22)
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20276](https://issues.apache.org/jira/browse/HBASE-20276) | [shell] Revert shell REPL change and document | Blocker | documentation, shell |
+| [HBASE-16459](https://issues.apache.org/jira/browse/HBASE-16459) | Remove unused hbase shell --format option | Trivial | shell |
+| [HBASE-19128](https://issues.apache.org/jira/browse/HBASE-19128) | Purge Distributed Log Replay from codebase, configurations, text; mark the feature as unsupported, broken. | Major | documentation |
+| [HBASE-19504](https://issues.apache.org/jira/browse/HBASE-19504) | Add TimeRange support into checkAndMutate | Major | . |
+| [HBASE-20119](https://issues.apache.org/jira/browse/HBASE-20119) | Introduce a pojo class to carry coprocessor information in order to make TableDescriptorBuilder accept multiple cp at once | Minor | . |
+| [HBASE-19437](https://issues.apache.org/jira/browse/HBASE-19437) | Batch operation can't handle the null result for Append/Increment | Critical | Usability |
+| [HBASE-19873](https://issues.apache.org/jira/browse/HBASE-19873) | Add a CategoryBasedTimeout ClassRule for all UTs | Major | . |
+| [HBASE-19783](https://issues.apache.org/jira/browse/HBASE-19783) | Change replication peer cluster key/endpoint from a not-null value to null is not allowed | Minor | Replication |
+| [HBASE-19483](https://issues.apache.org/jira/browse/HBASE-19483) | Add proper privilege check for rsgroup commands | Major | rsgroup, security |
+| [HBASE-19492](https://issues.apache.org/jira/browse/HBASE-19492) | Add EXCLUDE\_NAMESPACE and EXCLUDE\_TABLECFS support to replication peer config | Major | . |
+| [HBASE-19357](https://issues.apache.org/jira/browse/HBASE-19357) | Bucket cache no longer L2 for LRU cache | Major | . |
+| [HBASE-19359](https://issues.apache.org/jira/browse/HBASE-19359) | Revisit the default config of hbase client retries number | Major | . |
+| [HBASE-19092](https://issues.apache.org/jira/browse/HBASE-19092) | Make Tag IA.LimitedPrivate and expose for CPs | Critical | Coprocessors |
+| [HBASE-19187](https://issues.apache.org/jira/browse/HBASE-19187) | Remove option to create on heap bucket cache | Minor | regionserver |
+| [HBASE-19033](https://issues.apache.org/jira/browse/HBASE-19033) | Allow CP users to change versions and TTL before opening StoreScanner | Blocker | Coprocessors |
+| [HBASE-19047](https://issues.apache.org/jira/browse/HBASE-19047) | CP exposed Scanner types should not extend Shipper | Critical | Coprocessors |
+| [HBASE-18905](https://issues.apache.org/jira/browse/HBASE-18905) | Allow CPs to request flush on Region and know the completion of the requested flush | Major | Coprocessors |
+| [HBASE-18410](https://issues.apache.org/jira/browse/HBASE-18410) | FilterList Improvement. | Major | Filters |
+| [HBASE-18893](https://issues.apache.org/jira/browse/HBASE-18893) | Remove Add/Modify/DeleteColumnFamilyProcedure in favor of using ModifyTableProcedure | Major | Coprocessors, master |
+| [HBASE-19067](https://issues.apache.org/jira/browse/HBASE-19067) | Do not expose getHDFSBlockDistribution in StoreFile | Major | Coprocessors |
+| [HBASE-18989](https://issues.apache.org/jira/browse/HBASE-18989) | Polish the compaction related CP hooks | Major | Compaction, Coprocessors |
+| [HBASE-19046](https://issues.apache.org/jira/browse/HBASE-19046) | RegionObserver#postCompactSelection Avoid passing shaded ImmutableList param | Major | Coprocessors |
+| [HBASE-19001](https://issues.apache.org/jira/browse/HBASE-19001) | Remove the hooks in RegionObserver which are designed to construct a StoreScanner which is marked as IA.Private | Major | Coprocessors |
+| [HBASE-14247](https://issues.apache.org/jira/browse/HBASE-14247) | Separate the old WALs into different regionserver directories | Critical | wal |
+| [HBASE-18183](https://issues.apache.org/jira/browse/HBASE-18183) | Region interface cleanup for CP expose | Major | Coprocessors |
+| [HBASE-18878](https://issues.apache.org/jira/browse/HBASE-18878) | Use Optional\<T\> return types when T can be null | Major | Coprocessors |
+| [HBASE-18649](https://issues.apache.org/jira/browse/HBASE-18649) | Deprecate KV Usage in MR to move to Cells in 3.0 | Major | API, mapreduce |
+| [HBASE-18897](https://issues.apache.org/jira/browse/HBASE-18897) | Substitute MemStore for Memstore | Major | . |
+| [HBASE-18883](https://issues.apache.org/jira/browse/HBASE-18883) | Upgrade to Curator 4.0 | Major | Client, dependencies |
+| [HBASE-18839](https://issues.apache.org/jira/browse/HBASE-18839) | Apply RegionInfo to code base | Major | Coprocessors |
+| [HBASE-18826](https://issues.apache.org/jira/browse/HBASE-18826) | Use HStore instead of Store in our own code base and remove unnecessary methods in Store interface | Major | Coprocessors |
+| [HBASE-17732](https://issues.apache.org/jira/browse/HBASE-17732) | Coprocessor Design Improvements | Critical | Coprocessors |
+| [HBASE-18298](https://issues.apache.org/jira/browse/HBASE-18298) | RegionServerServices Interface cleanup for CP expose | Critical | Coprocessors |
+| [HBASE-16769](https://issues.apache.org/jira/browse/HBASE-16769) | Deprecate/remove PB references from MasterObserver and RegionServerObserver | Blocker | . |
+| [HBASE-18859](https://issues.apache.org/jira/browse/HBASE-18859) | Purge PB from BulkLoadObserver | Major | Coprocessors |
+| [HBASE-18731](https://issues.apache.org/jira/browse/HBASE-18731) | [compat 1-2] Mark protected methods of QuotaSettings that touch Protobuf internals as IA.Private | Major | API |
+| [HBASE-18825](https://issues.apache.org/jira/browse/HBASE-18825) | Use HStoreFile instead of StoreFile in our own code base and remove unnecessary methods in StoreFile interface | Major | Coprocessors |
+| [HBASE-18142](https://issues.apache.org/jira/browse/HBASE-18142) | Deletion of a cell deletes the previous versions too | Major | API, shell |
+| [HBASE-18446](https://issues.apache.org/jira/browse/HBASE-18446) | Mark StoreFileScanner/StoreFileReader as IA.LimitedPrivate(Phoenix) | Critical | Coprocessors |
+| [HBASE-18798](https://issues.apache.org/jira/browse/HBASE-18798) | Remove the unused methods in RegionServerObserver | Major | Coprocessors |
+| [HBASE-18453](https://issues.apache.org/jira/browse/HBASE-18453) | CompactionRequest should not be exposed to user directly | Major | Coprocessors |
+| [HBASE-18794](https://issues.apache.org/jira/browse/HBASE-18794) | Remove deprecated methods in MasterObserver | Major | Coprocessors |
+| [HBASE-17823](https://issues.apache.org/jira/browse/HBASE-17823) | Migrate to Apache Yetus Audience Annotations | Major | API |
+| [HBASE-18793](https://issues.apache.org/jira/browse/HBASE-18793) | Remove deprecated methods in RegionObserver | Major | Coprocessors |
+| [HBASE-18733](https://issues.apache.org/jira/browse/HBASE-18733) | [compat 1-2] Hide WALKey | Major | API |
+| [HBASE-16479](https://issues.apache.org/jira/browse/HBASE-16479) | Move WALEdit from hbase.regionserver.wal package to hbase.wal package | Major | wal |
+| [HBASE-18783](https://issues.apache.org/jira/browse/HBASE-18783) | Declare the builder of ClusterStatus as IA.Private, and remove the Writables from ClusterStatus | Minor | . |
+| [HBASE-18106](https://issues.apache.org/jira/browse/HBASE-18106) | Redo ProcedureInfo and LockInfo | Critical | proc-v2 |
+| [HBASE-18780](https://issues.apache.org/jira/browse/HBASE-18780) | Remove HLogPrettyPrinter and hlog command | Minor | documentation, wal |
+| [HBASE-18704](https://issues.apache.org/jira/browse/HBASE-18704) | Upgrade hbase to commons-collections 4 | Major | dependencies |
+| [HBASE-15607](https://issues.apache.org/jira/browse/HBASE-15607) | Remove PB references from Admin for 2.0 | Blocker | . |
+| [HBASE-18736](https://issues.apache.org/jira/browse/HBASE-18736) | Cleanup the HTD/HCD for Admin | Major | . |
+| [HBASE-18577](https://issues.apache.org/jira/browse/HBASE-18577) | shaded client includes several non-relocated third party dependencies | Critical | Client |
+| [HBASE-3935](https://issues.apache.org/jira/browse/HBASE-3935) | HServerLoad.storefileIndexSizeMB should be changed to storefileIndexSizeKB | Major | . |
+| [HBASE-15982](https://issues.apache.org/jira/browse/HBASE-15982) | Interface ReplicationEndpoint extends Guava's Service | Blocker | . |
+| [HBASE-18546](https://issues.apache.org/jira/browse/HBASE-18546) | Always overwrite the TS for Append/Increment unless no existing cells are found | Critical | API, Client |
+| [HBASE-17442](https://issues.apache.org/jira/browse/HBASE-17442) | Move most of the replication related classes from hbase-client to hbase-replication package | Critical | build, Replication |
+| [HBASE-18511](https://issues.apache.org/jira/browse/HBASE-18511) | Default no regions on master | Blocker | master |
+| [HBASE-18528](https://issues.apache.org/jira/browse/HBASE-18528) | DON'T allow user to modify the passed table/column descriptor | Critical | Coprocessors, master |
+| [HBASE-18469](https://issues.apache.org/jira/browse/HBASE-18469) | Correct RegionServer metric of totalRequestCount | Critical | metrics, regionserver |
+| [HBASE-18500](https://issues.apache.org/jira/browse/HBASE-18500) | Performance issue: Don't use BufferedMutator for HTable's put method | Major | . |
+| [HBASE-17125](https://issues.apache.org/jira/browse/HBASE-17125) | Inconsistent result when use filter to read data | Critical | . |
+| [HBASE-18517](https://issues.apache.org/jira/browse/HBASE-18517) | limit max log message width in log4j | Major | . |
+| [HBASE-18502](https://issues.apache.org/jira/browse/HBASE-18502) | Change MasterObserver to use TableDescriptor and ColumnFamilyDescriptor | Critical | Coprocessors, master |
+| [HBASE-18374](https://issues.apache.org/jira/browse/HBASE-18374) | RegionServer Metrics improvements | Major | . |
+| [HBASE-17908](https://issues.apache.org/jira/browse/HBASE-17908) | Upgrade guava | Critical | dependencies |
+| [HBASE-18161](https://issues.apache.org/jira/browse/HBASE-18161) | Incremental Load support for Multiple-Table HFileOutputFormat | Minor | . |
+| [HBASE-18267](https://issues.apache.org/jira/browse/HBASE-18267) | The result from the postAppend is ignored | Major | Coprocessors |
+| [HBASE-18241](https://issues.apache.org/jira/browse/HBASE-18241) | Change client.Table, client.Admin, Region, Store, and HBaseTestingUtility to not use HTableDescriptor or HColumnDescriptor | Critical | Client |
+| [HBASE-18038](https://issues.apache.org/jira/browse/HBASE-18038) | Rename StoreFile to HStoreFile and add a StoreFile interface for CP | Critical | Coprocessors, regionserver |
+| [HBASE-16196](https://issues.apache.org/jira/browse/HBASE-16196) | Update jruby to a newer version. | Critical | dependencies, shell |
+| [HBASE-14614](https://issues.apache.org/jira/browse/HBASE-14614) | Procedure v2: Core Assignment Manager | Major | proc-v2 |
+| [HBASE-3462](https://issues.apache.org/jira/browse/HBASE-3462) | Fix table.jsp in regards to splitting a region/table with an optional splitkey | Major | master |
+| [HBASE-11013](https://issues.apache.org/jira/browse/HBASE-11013) | Clone Snapshots on Secure Cluster Should provide option to apply Retained User Permissions | Major | snapshots |
+| [HBASE-15296](https://issues.apache.org/jira/browse/HBASE-15296) | Break out writer and reader from StoreFile | Major | regionserver |
+| [HBASE-15199](https://issues.apache.org/jira/browse/HBASE-15199) | Move jruby jar so only on hbase-shell module classpath; currently globally available | Critical | dependencies, jruby, shell |
+| [HBASE-18009](https://issues.apache.org/jira/browse/HBASE-18009) | Move RpcServer.Call to a separated file | Major | IPC/RPC |
+| [HBASE-17956](https://issues.apache.org/jira/browse/HBASE-17956) | Raw scan should ignore TTL | Major | scan |
+| [HBASE-17914](https://issues.apache.org/jira/browse/HBASE-17914) | Create a new reader instead of cloning a new StoreFile when compaction | Major | Compaction, regionserver |
+| [HBASE-17595](https://issues.apache.org/jira/browse/HBASE-17595) | Add partial result support for small/limited scan | Critical | asyncclient, Client, scan |
+| [HBASE-17584](https://issues.apache.org/jira/browse/HBASE-17584) | Expose ScanMetrics with ResultScanner rather than Scan | Major | Client, mapreduce, scan |
+| [HBASE-17716](https://issues.apache.org/jira/browse/HBASE-17716) | Formalize Scan Metric names | Minor | metrics |
+| [HBASE-17312](https://issues.apache.org/jira/browse/HBASE-17312) | [JDK8] Use default method for Observer Coprocessors | Major | Coprocessors |
+| [HBASE-17647](https://issues.apache.org/jira/browse/HBASE-17647) | OffheapKeyValue#heapSize() implementation is wrong | Major | regionserver |
+| [HBASE-17472](https://issues.apache.org/jira/browse/HBASE-17472) | Correct the semantic of permission grant | Major | Admin |
+| [HBASE-17599](https://issues.apache.org/jira/browse/HBASE-17599) | Use mayHaveMoreCellsInRow instead of isPartial | Major | Client, scan |
+| [HBASE-17508](https://issues.apache.org/jira/browse/HBASE-17508) | Unify the implementation of small scan and regular scan for sync client | Major | Client, scan |
+| [HBASE-12894](https://issues.apache.org/jira/browse/HBASE-12894) | Upgrade Jetty to 9.2.6 | Critical | REST, UI |
+| [HBASE-16786](https://issues.apache.org/jira/browse/HBASE-16786) | Procedure V2 - Move ZK-lock's uses to Procedure framework locks (LockProcedure) | Major | . |
+| [HBASE-17470](https://issues.apache.org/jira/browse/HBASE-17470) | Remove merge region code from region server | Major | regionserver |
+| [HBASE-5401](https://issues.apache.org/jira/browse/HBASE-5401) | PerformanceEvaluation generates 10x the number of expected mappers | Major | test |
+| [HBASE-17221](https://issues.apache.org/jira/browse/HBASE-17221) | Abstract out an interface for RpcServer.Call | Major | . |
+| [HBASE-16119](https://issues.apache.org/jira/browse/HBASE-16119) | Procedure v2 - Reimplement merge | Major | proc-v2, Region Assignment |
+| [HBASE-17132](https://issues.apache.org/jira/browse/HBASE-17132) | Cleanup deprecated code for WAL | Major | wal |
+| [HBASE-17017](https://issues.apache.org/jira/browse/HBASE-17017) | Remove the current per-region latency histogram metrics | Major | metrics |
+| [HBASE-15513](https://issues.apache.org/jira/browse/HBASE-15513) | hbase.hregion.memstore.chunkpool.maxsize is 0.0 by default | Major | . |
+| [HBASE-16972](https://issues.apache.org/jira/browse/HBASE-16972) | Log more details for Scan#next request when responseTooSlow | Major | Operability |
+| [HBASE-16765](https://issues.apache.org/jira/browse/HBASE-16765) | New SteppingRegionSplitPolicy, avoid too aggressive spread of regions for small tables. | Critical | . |
+| [HBASE-16747](https://issues.apache.org/jira/browse/HBASE-16747) | Track memstore data size and heap overhead separately | Major | regionserver |
+| [HBASE-14551](https://issues.apache.org/jira/browse/HBASE-14551) | Procedure v2 - Reimplement split | Minor | proc-v2 |
+| [HBASE-16729](https://issues.apache.org/jira/browse/HBASE-16729) | Define the behavior of (default) empty FilterList | Trivial | . |
+| [HBASE-16799](https://issues.apache.org/jira/browse/HBASE-16799) | CP exposed Store should not expose unwanted APIs | Major | . |
+| [HBASE-16117](https://issues.apache.org/jira/browse/HBASE-16117) | Fix Connection leak in mapred.TableOutputFormat | Major | mapreduce |
+| [HBASE-15638](https://issues.apache.org/jira/browse/HBASE-15638) | Shade protobuf | Critical | Protobufs |
+| [HBASE-16257](https://issues.apache.org/jira/browse/HBASE-16257) | Move staging dir to be under hbase root dir | Blocker | . |
+| [HBASE-16650](https://issues.apache.org/jira/browse/HBASE-16650) | Wrong usage of BlockCache eviction stat for heap memory tuning | Major | . |
+| [HBASE-16598](https://issues.apache.org/jira/browse/HBASE-16598) | Enable zookeeper useMulti always and clean up in HBase code | Major | . |
+| [HBASE-15297](https://issues.apache.org/jira/browse/HBASE-15297) | error message is wrong when a wrong namspace is specified in grant in hbase shell | Minor | shell |
+| [HBASE-16340](https://issues.apache.org/jira/browse/HBASE-16340) | ensure no Xerces jars included | Critical | dependencies |
+| [HBASE-16321](https://issues.apache.org/jira/browse/HBASE-16321) | Ensure findbugs jsr305 jar isn't present | Blocker | dependencies |
+| [HBASE-16355](https://issues.apache.org/jira/browse/HBASE-16355) | hbase-client dependency on hbase-common test-jar should be test scope | Major | Client, dependencies |
+| [HBASE-16186](https://issues.apache.org/jira/browse/HBASE-16186) | Fix AssignmentManager MBean name | Major | master |
+| [HBASE-13823](https://issues.apache.org/jira/browse/HBASE-13823) | Procedure V2: unnecessaery operations on AssignmentManager#recoverTableInDisablingState() and recoverTableInEnablingState() | Major | master, proc-v2 |
+| [HBASE-15950](https://issues.apache.org/jira/browse/HBASE-15950) | Fix memstore size estimates to be more tighter | Major | . |
+| [HBASE-15971](https://issues.apache.org/jira/browse/HBASE-15971) | Regression: Random Read/WorkloadC slower in 1.x than 0.98 | Critical | rpc |
+| [HBASE-15875](https://issues.apache.org/jira/browse/HBASE-15875) | Remove HTable references and HTableInterface | Major | . |
+| [HBASE-15610](https://issues.apache.org/jira/browse/HBASE-15610) | Remove deprecated HConnection for 2.0 thus removing all PB references for 2.0 | Blocker | . |
+| [HBASE-15876](https://issues.apache.org/jira/browse/HBASE-15876) | Remove doBulkLoad(Path hfofDir, final HTable table) though it has not been through a full deprecation cycle | Blocker | . |
+| [HBASE-15575](https://issues.apache.org/jira/browse/HBASE-15575) | Rename table DDL \*Handler methods in MasterObserver to more meaningful names | Minor | Coprocessors |
+| [HBASE-15481](https://issues.apache.org/jira/browse/HBASE-15481) | Add pre/post roll to WALObserver | Trivial | . |
+| [HBASE-15568](https://issues.apache.org/jira/browse/HBASE-15568) | Procedure V2 - Remove CreateTableHandler in HBase Apache 2.0 release | Major | master, proc-v2 |
+| [HBASE-15521](https://issues.apache.org/jira/browse/HBASE-15521) | Procedure V2 - RestoreSnapshot and CloneSnapshot | Major | Client, master, proc-v2 |
+| [HBASE-11393](https://issues.apache.org/jira/browse/HBASE-11393) | Replication TableCfs should be a PB object rather than a string | Major | Replication |
+| [HBASE-15265](https://issues.apache.org/jira/browse/HBASE-15265) | Implement an asynchronous FSHLog | Major | wal |
+| [HBASE-15323](https://issues.apache.org/jira/browse/HBASE-15323) | Hbase Rest CheckAndDeleteAPi should be able to delete more cells | Major | hbase |
+| [HBASE-15377](https://issues.apache.org/jira/browse/HBASE-15377) | Per-RS Get metric is time based, per-region metric is size-based | Major | . |
+| [HBASE-13963](https://issues.apache.org/jira/browse/HBASE-13963) | avoid leaking jdk.tools | Critical | build, documentation |
+| [HBASE-15376](https://issues.apache.org/jira/browse/HBASE-15376) | ScanNext metric is size-based while every other per-operation metric is time based | Major | . |
+| [HBASE-15290](https://issues.apache.org/jira/browse/HBASE-15290) | Hbase Rest CheckAndAPI should save other cells along with compared cell | Major | hbase |
+| [HBASE-15100](https://issues.apache.org/jira/browse/HBASE-15100) | Master WALProcs still never clean up | Blocker | master, proc-v2 |
+| [HBASE-15111](https://issues.apache.org/jira/browse/HBASE-15111) | "hbase version" should write to stdout | Trivial | util |
+| [HBASE-14888](https://issues.apache.org/jira/browse/HBASE-14888) | ClusterSchema: Add Namespace Operations | Major | API |
+| [HBASE-15018](https://issues.apache.org/jira/browse/HBASE-15018) | Inconsistent way of handling TimeoutException in the rpc client implementations | Major | Client, IPC/RPC |
+| [HBASE-14205](https://issues.apache.org/jira/browse/HBASE-14205) | RegionCoprocessorHost System.nanoTime() performance bottleneck | Critical | Coprocessors, Performance, regionserver |
+| [HBASE-12751](https://issues.apache.org/jira/browse/HBASE-12751) | Allow RowLock to be reader writer | Major | regionserver |
+| [HBASE-13706](https://issues.apache.org/jira/browse/HBASE-13706) | CoprocessorClassLoader should not exempt Hive classes | Minor | Coprocessors |
+| [HBASE-13954](https://issues.apache.org/jira/browse/HBASE-13954) | Remove HTableInterface#getRowOrBefore related server side code | Major | API |
+| [HBASE-12296](https://issues.apache.org/jira/browse/HBASE-12296) | Filters should work with ByteBufferedCell | Major | regionserver, Scanners |
+| [HBASE-14027](https://issues.apache.org/jira/browse/HBASE-14027) | Clean up netty dependencies | Major | build |
+| [HBASE-7782](https://issues.apache.org/jira/browse/HBASE-7782) | HBaseTestingUtility.truncateTable() not acting like CLI | Minor | test |
+| [HBASE-14047](https://issues.apache.org/jira/browse/HBASE-14047) | Cleanup deprecated APIs from Cell class | Major | Client |
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