Author: zghao
Date: Thu Mar  7 09:41:43 2019
New Revision: 32800

Log:
add CHANGES.md and RELEASENOTES.md for 2.2.0RC0

Added:
    dev/hbase/2.2.0RC0/CHANGES.md
    dev/hbase/2.2.0RC0/RELEASENOTES.md

Added: dev/hbase/2.2.0RC0/CHANGES.md
==============================================================================
--- dev/hbase/2.2.0RC0/CHANGES.md (added)
+++ dev/hbase/2.2.0RC0/CHANGES.md Thu Mar  7 09:41:43 2019
@@ -0,0 +1,526 @@
+
+<!---
+# 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.
+-->
+# HBASE Changelog
+
+## Release 2.2.0 - Unreleased (as of 2019-03-04)
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21082](https://issues.apache.org/jira/browse/HBASE-21082) | 
Reimplement assign/unassign related procedure metrics |  Critical | amv2, 
metrics |
+| [HBASE-20587](https://issues.apache.org/jira/browse/HBASE-20587) | Replace 
Jackson with shaded thirdparty gson |  Major | dependencies |
+| [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 |
+| [HBASE-21792](https://issues.apache.org/jira/browse/HBASE-21792) | Mark 
HTableMultiplexer as deprecated and remove it in 3.0.0 |  Major | Client |
+| [HBASE-21657](https://issues.apache.org/jira/browse/HBASE-21657) | 
PrivateCellUtil#estimatedSerializedSizeOf has been the bottleneck in 100% scan 
case. |  Major | Performance |
+| [HBASE-21560](https://issues.apache.org/jira/browse/HBASE-21560) | Return a 
new TableDescriptor for MasterObserver#preModifyTable to allow coprocessor 
modify the TableDescriptor |  Major | Coprocessors |
+| [HBASE-21452](https://issues.apache.org/jira/browse/HBASE-21452) | Illegal 
character in hbase counters group name |  Major | spark |
+| [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 |
+| [HBASE-20881](https://issues.apache.org/jira/browse/HBASE-20881) | Introduce 
a region transition procedure to handle all the state transition for a region | 
 Major | amv2, proc-v2 |
+| [HBASE-20884](https://issues.apache.org/jira/browse/HBASE-20884) | Replace 
usage of our Base64 implementation with java.util.Base64 |  Major | . |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-20886](https://issues.apache.org/jira/browse/HBASE-20886) | [Auth] 
Support keytab login in hbase client |  Critical | asyncclient, Client, 
security |
+| [HBASE-17942](https://issues.apache.org/jira/browse/HBASE-17942) | Disable 
region splits and merges per table |  Major | . |
+| [HBASE-21753](https://issues.apache.org/jira/browse/HBASE-21753) | Support 
getting the locations for all the replicas of a region |  Major | Client |
+| [HBASE-20636](https://issues.apache.org/jira/browse/HBASE-20636) | Introduce 
two bloom filter type : ROWPREFIX\_FIXED\_LENGTH and ROWPREFIX\_DELIMITED |  
Major | HFile, regionserver, scan |
+| [HBASE-20649](https://issues.apache.org/jira/browse/HBASE-20649) | Validate 
HFiles do not have PREFIX\_TREE DataBlockEncoding |  Minor | Operability, 
tooling |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21255](https://issues.apache.org/jira/browse/HBASE-21255) | [acl] 
Refactor TablePermission into three classes (Global, Namespace, Table) |  Major 
| . |
+| [HBASE-21410](https://issues.apache.org/jira/browse/HBASE-21410) | A helper 
page that help find all problematic regions and procedures |  Major | . |
+| [HBASE-20734](https://issues.apache.org/jira/browse/HBASE-20734) | Colocate 
recovered edits directory with hbase.wal.dir |  Major | MTTR, Recovery, wal |
+| [HBASE-20401](https://issues.apache.org/jira/browse/HBASE-20401) | Make 
\`MAX\_WAIT\` and \`waitIfNotFinished\` in CleanerContext configurable |  Minor 
| master |
+| [HBASE-21481](https://issues.apache.org/jira/browse/HBASE-21481) | [acl] 
Superuser's permissions should not be granted or revoked by any non-su global 
admin |  Major | . |
+| [HBASE-21967](https://issues.apache.org/jira/browse/HBASE-21967) | Split 
TestServerCrashProcedure and TestServerCrashProcedureWithReplicas |  Major | . |
+| [HBASE-21867](https://issues.apache.org/jira/browse/HBASE-21867) | Support 
multi-threads in HFileArchiver |  Major | . |
+| [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-21875](https://issues.apache.org/jira/browse/HBASE-21875) | Change 
the retry logic in RSProcedureDispatcher to 'retry by default, only if xxx' |  
Major | proc-v2 |
+| [HBASE-21780](https://issues.apache.org/jira/browse/HBASE-21780) | Avoid a 
wide line on the RegionServer webUI for many ZooKeeper servers |  Minor | UI, 
Usability |
+| [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-21857](https://issues.apache.org/jira/browse/HBASE-21857) | Do not 
need to check clusterKey if replicationEndpoint is provided when adding a peer 
|  Major | . |
+| [HBASE-21201](https://issues.apache.org/jira/browse/HBASE-21201) | Support 
to run VerifyReplication MR tool without peerid |  Major | hbase-operator-tools 
|
+| [HBASE-21816](https://issues.apache.org/jira/browse/HBASE-21816) | Print 
source cluster replication config directory |  Trivial | Replication |
+| [HBASE-19616](https://issues.apache.org/jira/browse/HBASE-19616) | Review of 
LogCleaner Class |  Minor | . |
+| [HBASE-21830](https://issues.apache.org/jira/browse/HBASE-21830) | Backport 
HBASE-20577 (Make Log Level page design consistent with the design of other 
pages in UI) to branch-2 |  Major | UI, Usability |
+| [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-21789](https://issues.apache.org/jira/browse/HBASE-21789) | Rewrite 
MetaTableAccessor.multiMutate with Table.coprocessorService |  Major | Client, 
Coprocessors |
+| [HBASE-21689](https://issues.apache.org/jira/browse/HBASE-21689) | Make 
table/namespace specific current quota info available in 
shell(describe\_namespace & describe) |  Minor | . |
+| [HBASE-20215](https://issues.apache.org/jira/browse/HBASE-20215) | Rename 
CollectionUtils to ConcurrentMapUtils |  Trivial | . |
+| [HBASE-21720](https://issues.apache.org/jira/browse/HBASE-21720) | metric to 
measure how actions are distributed to servers within a MultiAction |  Minor | 
Client, metrics, monitoring |
+| [HBASE-21595](https://issues.apache.org/jira/browse/HBASE-21595) | Print 
thread's information and stack traces when RS is aborting forcibly |  Minor | 
regionserver |
+| [HBASE-20209](https://issues.apache.org/jira/browse/HBASE-20209) | Do Not 
Use Both Map containsKey and get Methods in Replication Sink |  Trivial | 
Replication |
+| [HBASE-21712](https://issues.apache.org/jira/browse/HBASE-21712) | Make 
submit-patch.py python3 compatible |  Minor | tooling |
+| [HBASE-21590](https://issues.apache.org/jira/browse/HBASE-21590) | Optimize 
trySkipToNextColumn in StoreScanner a bit |  Critical | Performance, Scanners |
+| [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-21700](https://issues.apache.org/jira/browse/HBASE-21700) | Simplify 
the implementation of RSGroupInfoManagerImpl |  Major | rsgroup |
+| [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-21360](https://issues.apache.org/jira/browse/HBASE-21360) | Disable 
printing of stack-trace in shell for quotas |  Minor | shell |
+| [HBASE-21662](https://issues.apache.org/jira/browse/HBASE-21662) | Add 
append\_peer\_exclude\_namespaces and remove\_peer\_exclude\_namespaces shell 
commands |  Major | . |
+| [HBASE-21659](https://issues.apache.org/jira/browse/HBASE-21659) | Avoid to 
load duplicate coprocessors in system config and table descriptor |  Minor | . |
+| [HBASE-21642](https://issues.apache.org/jira/browse/HBASE-21642) | CopyTable 
by reading snapshot and bulkloading will save a lot of time. |  Major | . |
+| [HBASE-21643](https://issues.apache.org/jira/browse/HBASE-21643) | Introduce 
two new region coprocessor method and deprecated postMutationBeforeWAL |  Major 
| . |
+| [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-21514](https://issues.apache.org/jira/browse/HBASE-21514) | Refactor 
CacheConfig |  Major | . |
+| [HBASE-21520](https://issues.apache.org/jira/browse/HBASE-21520) | 
TestMultiColumnScanner cost long time when using ROWCOL bloom type |  Major | 
test |
+| [HBASE-21554](https://issues.apache.org/jira/browse/HBASE-21554) | Show 
replication endpoint classname for replication peer on master web UI |  Minor | 
UI |
+| [HBASE-21549](https://issues.apache.org/jira/browse/HBASE-21549) | Add shell 
command for serial replication peer |  Major | . |
+| [HBASE-21283](https://issues.apache.org/jira/browse/HBASE-21283) | Add new 
shell command 'rit' for listing regions in transition |  Minor | Operability, 
shell |
+| [HBASE-21567](https://issues.apache.org/jira/browse/HBASE-21567) | Allow 
overriding configs starting up the shell |  Major | shell |
+| [HBASE-21413](https://issues.apache.org/jira/browse/HBASE-21413) | Empty 
meta log doesn't get split when restart whole cluster |  Major | . |
+| [HBASE-21524](https://issues.apache.org/jira/browse/HBASE-21524) | 
Unnecessary DEBUG log in ConnectionImplementation#isTableEnabled |  Major | 
Client |
+| [HBASE-21511](https://issues.apache.org/jira/browse/HBASE-21511) | Remove in 
progress snapshot check in SnapshotFileCache#getUnreferencedFiles |  Minor | 
snapshots |
+| [HBASE-21480](https://issues.apache.org/jira/browse/HBASE-21480) | Taking 
snapshot when RS crashes prevent we bring the regions online |  Major | 
snapshots |
+| [HBASE-21485](https://issues.apache.org/jira/browse/HBASE-21485) | Add more 
debug logs for remote procedure execution |  Major | proc-v2 |
+| [HBASE-21328](https://issues.apache.org/jira/browse/HBASE-21328) | add 
HBASE\_DISABLE\_HADOOP\_CLASSPATH\_LOOKUP switch to hbase-env.sh |  Minor | 
documentation, Operability |
+| [HBASE-19682](https://issues.apache.org/jira/browse/HBASE-19682) | Use 
Collections.emptyList() For Empty List Values |  Minor | . |
+| [HBASE-21388](https://issues.apache.org/jira/browse/HBASE-21388) | No need 
to instantiate MemStoreLAB for master which not carry table |  Major | . |
+| [HBASE-21325](https://issues.apache.org/jira/browse/HBASE-21325) | Force to 
terminate regionserver when abort hang in somewhere |  Major | . |
+| [HBASE-21385](https://issues.apache.org/jira/browse/HBASE-21385) | 
HTable.delete request use rpc call directly instead of AsyncProcess |  Major | 
. |
+| [HBASE-21318](https://issues.apache.org/jira/browse/HBASE-21318) | Make 
RefreshHFilesClient runnable |  Minor | HFile |
+| [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-21256](https://issues.apache.org/jira/browse/HBASE-21256) | Improve 
IntegrationTestBigLinkedList for testing huge data |  Major | integration tests 
|
+| [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-21098](https://issues.apache.org/jira/browse/HBASE-21098) | Improve 
Snapshot Performance with Temporary Snapshot Directory when rootDir on S3 |  
Major | . |
+| [HBASE-21299](https://issues.apache.org/jira/browse/HBASE-21299) | List 
counts of actual region states in master UI tables section |  Major | UI |
+| [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-21207](https://issues.apache.org/jira/browse/HBASE-21207) | Add 
client side sorting functionality in master web UI for table and region server 
details. |  Minor | master, monitoring, UI, Usability |
+| [HBASE-20857](https://issues.apache.org/jira/browse/HBASE-20857) | JMX - add 
Balancer status = enabled / disabled |  Major | API, master, metrics, REST, 
tooling, Usability |
+| [HBASE-21164](https://issues.apache.org/jira/browse/HBASE-21164) | 
reportForDuty to spew less log if master is initializing |  Minor | 
regionserver |
+| [HBASE-21204](https://issues.apache.org/jira/browse/HBASE-21204) | NPE when 
scan raw DELETE\_FAMILY\_VERSION and codec is not set |  Major | . |
+| [HBASE-20307](https://issues.apache.org/jira/browse/HBASE-20307) | 
LoadTestTool prints too much zookeeper logging |  Minor | tooling |
+| [HBASE-21155](https://issues.apache.org/jira/browse/HBASE-21155) | Save on a 
few log strings and some churn in wal splitter by skipping out early if no logs 
in dir |  Trivial | . |
+| [HBASE-21129](https://issues.apache.org/jira/browse/HBASE-21129) | Clean up 
duplicate codes in #equals and #hashCode methods of Filter |  Minor | Filters |
+| [HBASE-21157](https://issues.apache.org/jira/browse/HBASE-21157) | Split 
TableInputFormatScan to individual tests |  Minor | test |
+| [HBASE-21107](https://issues.apache.org/jira/browse/HBASE-21107) | add a 
metrics for netty direct memory |  Minor | IPC/RPC |
+| [HBASE-21153](https://issues.apache.org/jira/browse/HBASE-21153) | Shaded 
client jars should always build in relevant phase to avoid confusion |  Major | 
build |
+| [HBASE-21126](https://issues.apache.org/jira/browse/HBASE-21126) | Add 
ability for HBase Canary to ignore a configurable number of ZooKeeper down 
nodes |  Minor | canary, Zookeeper |
+| [HBASE-20749](https://issues.apache.org/jira/browse/HBASE-20749) | Upgrade 
our use of checkstyle to 8.6+ |  Minor | build, community |
+| [HBASE-21071](https://issues.apache.org/jira/browse/HBASE-21071) | 
HBaseTestingUtility::startMiniCluster() to use builder pattern |  Major | test |
+| [HBASE-20387](https://issues.apache.org/jira/browse/HBASE-20387) | flaky 
infrastructure should work for all branches |  Critical | test |
+| [HBASE-20469](https://issues.apache.org/jira/browse/HBASE-20469) | Directory 
used for sidelining old recovered edits files should be made configurable |  
Minor | . |
+| [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-20985](https://issues.apache.org/jira/browse/HBASE-20985) | add two 
attributes when we do normalization |  Major | . |
+| [HBASE-20965](https://issues.apache.org/jira/browse/HBASE-20965) | Separate 
region server report requests to new handlers |  Major | Performance |
+| [HBASE-20845](https://issues.apache.org/jira/browse/HBASE-20845) | Support 
set the consistency for Gets and Scans in thrift2 |  Major | Thrift |
+| [HBASE-20986](https://issues.apache.org/jira/browse/HBASE-20986) | Separate 
the config of block size when we do log splitting and write Hlog |  Major | . |
+| [HBASE-19036](https://issues.apache.org/jira/browse/HBASE-19036) | Add 
action in Chaos Monkey to restart Active Namenode |  Minor | . |
+| [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-20672](https://issues.apache.org/jira/browse/HBASE-20672) | New 
metrics ReadRequestRate and WriteRequestRate |  Minor | metrics |
+| [HBASE-20617](https://issues.apache.org/jira/browse/HBASE-20617) | 
Upgrade/remove jetty-jsp |  Minor | . |
+| [HBASE-20396](https://issues.apache.org/jira/browse/HBASE-20396) | Remove 
redundant MBean from thrift JMX |  Major | Thrift |
+| [HBASE-20357](https://issues.apache.org/jira/browse/HBASE-20357) | 
AccessControlClient API Enhancement |  Major | security |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21565](https://issues.apache.org/jira/browse/HBASE-21565) | Delete 
dead server from dead server list too early leads to concurrent Server Crash 
Procedures(SCP) for a same server |  Critical | . |
+| [HBASE-21740](https://issues.apache.org/jira/browse/HBASE-21740) | NPE 
happens while shutdown the RS |  Major | . |
+| [HBASE-21866](https://issues.apache.org/jira/browse/HBASE-21866) | Do not 
move the table to null rsgroup when creating an existing table |  Major | 
proc-v2, rsgroup |
+| [HBASE-21983](https://issues.apache.org/jira/browse/HBASE-21983) | Should 
track the scan metrics in AsyncScanSingleRegionRpcRetryingCaller if scan 
metrics is enabled |  Major | asyncclient, Client |
+| [HBASE-21980](https://issues.apache.org/jira/browse/HBASE-21980) | Fix typo 
in AbstractTestAsyncTableRegionReplicasRead |  Major | test |
+| [HBASE-21487](https://issues.apache.org/jira/browse/HBASE-21487) | 
Concurrent modify table ops can lead to unexpected results |  Major | . |
+| [HBASE-20724](https://issues.apache.org/jira/browse/HBASE-20724) | Sometimes 
some compacted storefiles are still opened after region failover |  Critical | 
. |
+| [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-21960](https://issues.apache.org/jira/browse/HBASE-21960) | 
RESTServletContainer not configured for REST Jetty server |  Blocker | REST |
+| [HBASE-21943](https://issues.apache.org/jira/browse/HBASE-21943) | The usage 
of RegionLocations.mergeRegionLocations is wrong for async client |  Critical | 
asyncclient, Client |
+| [HBASE-21947](https://issues.apache.org/jira/browse/HBASE-21947) | TestShell 
is broken after we remove the jackson dependencies |  Major | dependencies, 
shell |
+| [HBASE-21942](https://issues.apache.org/jira/browse/HBASE-21942) | [UI] 
requests per second is incorrect in rsgroup page(rsgroup.jsp) |  Minor | . |
+| [HBASE-21922](https://issues.apache.org/jira/browse/HBASE-21922) | 
BloomContext#sanityCheck may failed when use ROWPREFIX\_DELIMITED bloom filter 
|  Major | . |
+| [HBASE-21929](https://issues.apache.org/jira/browse/HBASE-21929) | The 
checks at the end of TestRpcClientLeaks are not executed |  Major | test |
+| [HBASE-21938](https://issues.apache.org/jira/browse/HBASE-21938) | Add a new 
ClusterMetrics.Option SERVERS\_NAME to only return the live region servers's 
name without metrics |  Major | . |
+| [HBASE-21928](https://issues.apache.org/jira/browse/HBASE-21928) | 
Deprecated HConstants.META\_QOS |  Major | Client, rpc |
+| [HBASE-21915](https://issues.apache.org/jira/browse/HBASE-21915) | 
FileLink$FileLinkInputStream doesn't implement CanUnbuffer |  Major | 
Filesystem Integration |
+| [HBASE-21899](https://issues.apache.org/jira/browse/HBASE-21899) | Fix 
missing variables in slf4j Logger |  Trivial | logging |
+| [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-21785](https://issues.apache.org/jira/browse/HBASE-21785) | master 
reports open regions as RITs and also messes up rit age metric |  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-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-21811](https://issues.apache.org/jira/browse/HBASE-21811) | region 
can be opened on two servers due to race condition with procedures and server 
reports |  Blocker | amv2 |
+| [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-21733](https://issues.apache.org/jira/browse/HBASE-21733) | 
SnapshotQuotaObserverChore should only fetch space quotas |  Major | . |
+| [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-21770](https://issues.apache.org/jira/browse/HBASE-21770) | Should 
deal with meta table in HRegionLocator.getAllRegionLocations |  Major | Client |
+| [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-21749](https://issues.apache.org/jira/browse/HBASE-21749) | RS UI may 
throw NPE and make rs-status page inaccessible with multiwal and replication |  
Major | Replication, UI |
+| [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-20917](https://issues.apache.org/jira/browse/HBASE-20917) | 
MetaTableMetrics#stop references uninitialized requestsMap for non-meta region 
|  Major | meta, metrics |
+| [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-21707](https://issues.apache.org/jira/browse/HBASE-21707) | Fix 
warnings in hbase-rsgroup module and also make the UTs more stable |  Major | 
Region Assignment, rsgroup |
+| [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-21695](https://issues.apache.org/jira/browse/HBASE-21695) | Fix flaky 
test TestRegionServerAbortTimeout |  Major | . |
+| [HBASE-21614](https://issues.apache.org/jira/browse/HBASE-21614) | RIT 
recovery with ServerCrashProcedure doesn't account for all regions |  Critical 
| amv2 |
+| [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-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-21660](https://issues.apache.org/jira/browse/HBASE-21660) | Apply the 
cell to right memstore for increment/append operation |  Major | . |
+| [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-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-21575](https://issues.apache.org/jira/browse/HBASE-21575) | memstore 
above high watermark message is logged too much |  Minor | logging, 
regionserver |
+| [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 | . |
+| [HBASE-21568](https://issues.apache.org/jira/browse/HBASE-21568) | Disable 
use of BlockCache for LoadIncrementalHFiles |  Major | Client |
+| [HBASE-21453](https://issues.apache.org/jira/browse/HBASE-21453) | Convert 
ReadOnlyZKClient to DEBUG instead of INFO |  Major | logging, Zookeeper |
+| [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-21550](https://issues.apache.org/jira/browse/HBASE-21550) | Add a new 
method preCreateTableRegionInfos for MasterObserver which allows CPs to modify 
the TableDescriptor |  Major | Coprocessors |
+| [HBASE-21479](https://issues.apache.org/jira/browse/HBASE-21479) | 
Individual tests in TestHRegionReplayEvents class are failing |  Major | . |
+| [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-21300](https://issues.apache.org/jira/browse/HBASE-21300) | Fix the 
wrong reference file path when restoring snapshots for tables with MOB columns 
|  Major | . |
+| [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 |
+| [HBASE-21387](https://issues.apache.org/jira/browse/HBASE-21387) | Race 
condition surrounding in progress snapshot handling in snapshot cache leads to 
loss of snapshot files |  Major | snapshots |
+| [HBASE-21503](https://issues.apache.org/jira/browse/HBASE-21503) | 
Replication normal source can get stuck due potential race conditions between 
source wal reader and wal provider initialization threads. |  Blocker | 
Replication |
+| [HBASE-21466](https://issues.apache.org/jira/browse/HBASE-21466) | 
WALProcedureStore uses wrong FileSystem if wal.dir is not under rootdir |  
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 aren’t 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-21247](https://issues.apache.org/jira/browse/HBASE-21247) | Custom 
Meta WAL Provider doesn't default to custom WAL Provider whose configuration 
value is outside the enums in Providers |  Major | wal |
+| [HBASE-21430](https://issues.apache.org/jira/browse/HBASE-21430) | 
[hbase-connectors] Move hbase-spark\* modules to hbase-connectors repo |  Major 
| hbase-connectors, spark |
+| [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-21422](https://issues.apache.org/jira/browse/HBASE-21422) | NPE in 
TestMergeTableRegionsProcedure.testMergeWithoutPONR |  Major | proc-v2, test |
+| [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-21391](https://issues.apache.org/jira/browse/HBASE-21391) | 
RefreshPeerProcedure should also wait master initialized before executing |  
Major | Replication |
+| [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-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-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-18549](https://issues.apache.org/jira/browse/HBASE-18549) | Unclaimed 
replication queues can go undetected |  Critical | Replication |
+| [HBASE-21248](https://issues.apache.org/jira/browse/HBASE-21248) | Implement 
exponential backoff when retrying for ModifyPeerProcedure |  Major | proc-v2, 
Replication |
+| [HBASE-21196](https://issues.apache.org/jira/browse/HBASE-21196) | 
HTableMultiplexer clears the meta cache after every put operation |  Critical | 
Performance |
+| [HBASE-19418](https://issues.apache.org/jira/browse/HBASE-19418) | 
RANGE\_OF\_DELAY in PeriodicMemstoreFlusher should be configurable. |  Minor | 
. |
+| [HBASE-18451](https://issues.apache.org/jira/browse/HBASE-18451) | 
PeriodicMemstoreFlusher should inspect the queue before adding a delayed flush 
request |  Major | regionserver |
+| [HBASE-21228](https://issues.apache.org/jira/browse/HBASE-21228) | Memory 
leak since AbstractFSWAL caches Thread object and never clean later |  Critical 
| wal |
+| [HBASE-20766](https://issues.apache.org/jira/browse/HBASE-20766) | Verify 
Replication Tool Has Typo "remove cluster" |  Trivial | . |
+| [HBASE-21232](https://issues.apache.org/jira/browse/HBASE-21232) | Show 
table state in Tables view on Master home page |  Major | Operability, UI |
+| [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-21102](https://issues.apache.org/jira/browse/HBASE-21102) | 
ServerCrashProcedure should select target server where no other replicas exist 
for the current region |  Major | Region Assignment |
+| [HBASE-21206](https://issues.apache.org/jira/browse/HBASE-21206) | Scan with 
batch size may return incomplete cells |  Critical | scan |
+| [HBASE-21182](https://issues.apache.org/jira/browse/HBASE-21182) | Failed to 
execute start-hbase.sh |  Major | . |
+| [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-21021](https://issues.apache.org/jira/browse/HBASE-21021) | Result 
returned by Append operation should be ordered |  Major | . |
+| [HBASE-21173](https://issues.apache.org/jira/browse/HBASE-21173) | Remove 
the duplicate HRegion#close in TestHRegion |  Minor | test |
+| [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-21171](https://issues.apache.org/jira/browse/HBASE-21171) | [amv2] 
Tool to parse a directory of MasterProcWALs standalone |  Major | amv2, test |
+| [HBASE-21052](https://issues.apache.org/jira/browse/HBASE-21052) | After 
restoring a snapshot, table.jsp page for the table gets stuck |  Major | 
snapshots |
+| [HBASE-21001](https://issues.apache.org/jira/browse/HBASE-21001) | 
ReplicationObserver fails to load in HBase 2.0.0 |  Major | . |
+| [HBASE-20741](https://issues.apache.org/jira/browse/HBASE-20741) | Split of 
a region with replicas creates all daughter regions and its replica in same 
server |  Major | read replicas |
+| [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-21136](https://issues.apache.org/jira/browse/HBASE-21136) | NPE in 
MetricsTableSourceImpl.updateFlushTime |  Major | metrics |
+| [HBASE-21132](https://issues.apache.org/jira/browse/HBASE-21132) | return 
wrong result in rest multiget |  Major | . |
+| [HBASE-21128](https://issues.apache.org/jira/browse/HBASE-21128) | 
TestAsyncRegionAdminApi.testAssignRegionAndUnassignRegion is broken |  Major | 
test |
+| [HBASE-20940](https://issues.apache.org/jira/browse/HBASE-20940) | 
HStore.cansplit should not allow split to happen if it has references |  Major 
| . |
+| [HBASE-21084](https://issues.apache.org/jira/browse/HBASE-21084) | When 
cloning a snapshot including a split parent region, the split parent region of 
the cloned table will be online |  Major | snapshots |
+| [HBASE-20968](https://issues.apache.org/jira/browse/HBASE-20968) | 
list\_procedures\_test fails due to no matching regex |  Major | shell, test |
+| [HBASE-21030](https://issues.apache.org/jira/browse/HBASE-21030) | Correct 
javadoc for append operation |  Minor | documentation |
+| [HBASE-21088](https://issues.apache.org/jira/browse/HBASE-21088) | 
HStoreFile should be closed in HStore#hasReferences |  Major | . |
+| [HBASE-20890](https://issues.apache.org/jira/browse/HBASE-20890) | PE 
filterScan seems to be stuck forever |  Minor | . |
+| [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-19008](https://issues.apache.org/jira/browse/HBASE-19008) | Add 
missing equals or hashCode method(s) to stock Filter implementations |  Major | 
. |
+| [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-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-20666](https://issues.apache.org/jira/browse/HBASE-20666) | 
Unsuccessful table creation leaves entry in hbase:rsgroup table |  Minor | . |
+| [HBASE-21032](https://issues.apache.org/jira/browse/HBASE-21032) | 
ScanResponses contain only one cell each |  Major | Performance, Scanners |
+| [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-21007](https://issues.apache.org/jira/browse/HBASE-21007) | Memory 
leak in HBase rest server |  Critical | REST |
+| [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-20927](https://issues.apache.org/jira/browse/HBASE-20927) | 
RSGroupAdminEndpoint doesn't handle clearing dead servers if they are not 
processed yet. |  Major | . |
+| [HBASE-20932](https://issues.apache.org/jira/browse/HBASE-20932) | Effective 
MemStoreSize::hashCode() |  Major | . |
+| [HBASE-20928](https://issues.apache.org/jira/browse/HBASE-20928) | Rewrite 
calculation of midpoint in binarySearch functions to prevent overflow |  Minor 
| io |
+| [HBASE-20565](https://issues.apache.org/jira/browse/HBASE-20565) | 
ColumnRangeFilter combined with ColumnPaginationFilter can produce incorrect 
result since 1.4 |  Major | Filters |
+| [HBASE-20908](https://issues.apache.org/jira/browse/HBASE-20908) | Infinite 
loop on regionserver if region replica are reduced |  Major | read replicas |
+| [HBASE-19893](https://issues.apache.org/jira/browse/HBASE-19893) | 
restore\_snapshot is broken in master branch when region splits |  Critical | 
snapshots |
+| [HBASE-20870](https://issues.apache.org/jira/browse/HBASE-20870) | Wrong 
HBase root dir in ITBLL's Search Tool |  Minor | integration tests |
+| [HBASE-20901](https://issues.apache.org/jira/browse/HBASE-20901) | Reducing 
region replica has no effect |  Major | . |
+| [HBASE-6028](https://issues.apache.org/jira/browse/HBASE-6028) | Implement a 
cancel for in-progress compactions |  Minor | regionserver |
+| [HBASE-20869](https://issues.apache.org/jira/browse/HBASE-20869) | 
Endpoint-based Export use incorrect user to write to destination |  Major | 
Coprocessors |
+| [HBASE-20879](https://issues.apache.org/jira/browse/HBASE-20879) | 
Compacting memstore config should handle lower case |  Major | . |
+| [HBASE-20865](https://issues.apache.org/jira/browse/HBASE-20865) | 
CreateTableProcedure is stuck in retry loop in CREATE\_TABLE\_WRITE\_FS\_LAYOUT 
state |  Major | amv2 |
+| [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-20791](https://issues.apache.org/jira/browse/HBASE-20791) | 
RSGroupBasedLoadBalancer#setClusterMetrics should pass ClusterMetrics to its 
internalBalancer |  Major | rsgroup |
+| [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 |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-21756](https://issues.apache.org/jira/browse/HBASE-21756) | Backport 
HBASE-21279 (Split TestAdminShell into several tests) to branch-2 |  Major | . |
+| [HBASE-20136](https://issues.apache.org/jira/browse/HBASE-20136) | 
TestKeyValue misses ClassRule and Category annotations |  Minor | . |
+| [HBASE-21261](https://issues.apache.org/jira/browse/HBASE-21261) | Add 
log4j.properties for hbase-rsgroup tests |  Trivial | . |
+| [HBASE-21258](https://issues.apache.org/jira/browse/HBASE-21258) | Add 
resetting of flags for RS Group pre/post hooks in TestRSGroups |  Major | . |
+| [HBASE-21097](https://issues.apache.org/jira/browse/HBASE-21097) | Flush 
pressure assertion may fail in testFlushThroughputTuning |  Major | 
regionserver |
+| [HBASE-21138](https://issues.apache.org/jira/browse/HBASE-21138) | Close 
HRegion instance at the end of every test in TestHRegion |  Major | . |
+| [HBASE-21161](https://issues.apache.org/jira/browse/HBASE-21161) | Enable 
the test added in HBASE-20741 that was removed accidentally |  Minor | . |
+| [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 | . |
+| [HBASE-20838](https://issues.apache.org/jira/browse/HBASE-20838) | Include 
hbase-server in precommit test if CommonFSUtils is changed |  Major | . |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-15728](https://issues.apache.org/jira/browse/HBASE-15728) | Add 
remaining per-table region / store / flush / compaction related metrics |  
Major | metrics |
+| [HBASE-21934](https://issues.apache.org/jira/browse/HBASE-21934) | 
RemoteProcedureDispatcher should track the ongoing dispatched calls |  Blocker 
| proc-v2 |
+| [HBASE-21588](https://issues.apache.org/jira/browse/HBASE-21588) | Procedure 
v2 wal splitting implementation |  Major | . |
+| [HBASE-21729](https://issues.apache.org/jira/browse/HBASE-21729) | Extract 
ProcedureCoordinatorRpcs and ProcedureMemberRpcs from CoordinatedStateManager | 
 Major | . |
+| [HBASE-21094](https://issues.apache.org/jira/browse/HBASE-21094) | Remove 
the explicit timeout config for TestTruncateTableProcedure |  Major | test |
+| [HBASE-21093](https://issues.apache.org/jira/browse/HBASE-21093) | Move 
TestCreateTableProcedure.testMRegions to a separated file |  Major | test |
+| [HBASE-18201](https://issues.apache.org/jira/browse/HBASE-18201) | add UT 
and docs for DataBlockEncodingTool |  Minor | tooling |
+| [HBASE-21978](https://issues.apache.org/jira/browse/HBASE-21978) | Should 
close AsyncRegistry if we fail to get cluster id when creating AsyncConnection 
|  Major | asyncclient, Client |
+| [HBASE-21974](https://issues.apache.org/jira/browse/HBASE-21974) | Change 
Admin#grant/revoke parameter from UserPermission to user and Permission |  
Major | . |
+| [HBASE-21976](https://issues.apache.org/jira/browse/HBASE-21976) | Deal with 
RetryImmediatelyException for batching request |  Major | asyncclient, Client |
+| [HBASE-21820](https://issues.apache.org/jira/browse/HBASE-21820) | Implement 
CLUSTER quota scope |  Major | . |
+| [HBASE-21962](https://issues.apache.org/jira/browse/HBASE-21962) | Filters 
do not work in ThriftTable |  Major | Thrift |
+| [HBASE-21927](https://issues.apache.org/jira/browse/HBASE-21927) | Always 
fail the locate request when error occur |  Major | asyncclient, Client |
+| [HBASE-21886](https://issues.apache.org/jira/browse/HBASE-21886) | Run ITBLL 
for branch-2.2 |  Major | . |
+| [HBASE-21944](https://issues.apache.org/jira/browse/HBASE-21944) | Validate 
put for batch operation |  Major | asyncclient, Client |
+| [HBASE-21945](https://issues.apache.org/jira/browse/HBASE-21945) | Maintain 
the original order when sending batch request |  Major | asyncclient, Client |
+| [HBASE-21783](https://issues.apache.org/jira/browse/HBASE-21783) | Support 
exceed user/table/ns throttle quota if region server has available quota |  
Major | . |
+| [HBASE-21930](https://issues.apache.org/jira/browse/HBASE-21930) | Deal with 
ScannerResetException when opening region scanner |  Major | asyncclient, 
Client |
+| [HBASE-21907](https://issues.apache.org/jira/browse/HBASE-21907) | Should 
set priority for rpc request |  Major | asyncclient, Client |
+| [HBASE-21909](https://issues.apache.org/jira/browse/HBASE-21909) | Validate 
the put instance before executing in AsyncTable.put method |  Major | 
asyncclient, Client |
+| [HBASE-21814](https://issues.apache.org/jira/browse/HBASE-21814) | Remove 
the TODO in AccessControlLists#addUserPermission |  Major | . |
+| [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-21838](https://issues.apache.org/jira/browse/HBASE-21838) | Create a 
special ReplicationEndpoint just for verifying the WAL entries are fine |  
Major | Replication, wal |
+| [HBASE-21829](https://issues.apache.org/jira/browse/HBASE-21829) | Use 
FutureUtils.addListener instead of calling whenComplete directly |  Major | 
asyncclient, Client |
+| [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-21809](https://issues.apache.org/jira/browse/HBASE-21809) | Add retry 
thrift client for ThriftTable/Admin |  Major | . |
+| [HBASE-21739](https://issues.apache.org/jira/browse/HBASE-21739) | Move 
grant/revoke from regionserver to master |  Major | . |
+| [HBASE-21798](https://issues.apache.org/jira/browse/HBASE-21798) | Cut 
branch-2.2 |  Major | . |
+| [HBASE-20542](https://issues.apache.org/jira/browse/HBASE-20542) | Better 
heap utilization for IMC with MSLABs |  Major | in-memory-compaction |
+| [HBASE-21713](https://issues.apache.org/jira/browse/HBASE-21713) | Support 
set region server throttle quota |  Major | . |
+| [HBASE-21761](https://issues.apache.org/jira/browse/HBASE-21761) | Align the 
methods in RegionLocator and AsyncTableRegionLocator |  Major | asyncclient, 
Client |
+| [HBASE-17370](https://issues.apache.org/jira/browse/HBASE-17370) | Fix or 
provide shell scripts to drain and decommission region server |  Major | . |
+| [HBASE-21750](https://issues.apache.org/jira/browse/HBASE-21750) | Most of 
KeyValueUtil#length can be replaced by cell#getSerializedSize for better 
performance because the latter one has been optimized |  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-21034](https://issues.apache.org/jira/browse/HBASE-21034) | Add new 
throttle type: read/write capacity unit |  Major | . |
+| [HBASE-21726](https://issues.apache.org/jira/browse/HBASE-21726) | Add 
getAllRegionLocations method to AsyncTableRegionLocator |  Major | asyncclient, 
Client |
+| [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-21647](https://issues.apache.org/jira/browse/HBASE-21647) | Add 
status track for splitting WAL tasks |  Major | Operability |
+| [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-21652](https://issues.apache.org/jira/browse/HBASE-21652) | Refactor 
ThriftServer making thrift2 server inherited from thrift1 server |  Major | . |
+| [HBASE-21661](https://issues.apache.org/jira/browse/HBASE-21661) | Provide 
Thrift2 implementation of Table/Admin |  Major | . |
+| [HBASE-21682](https://issues.apache.org/jira/browse/HBASE-21682) | Support 
getting from specific replica |  Major | read replicas |
+| [HBASE-21159](https://issues.apache.org/jira/browse/HBASE-21159) | Add shell 
command to switch throttle on or off |  Major | . |
+| [HBASE-21362](https://issues.apache.org/jira/browse/HBASE-21362) | Disable 
printing of stack-trace in shell when quotas are violated |  Minor | shell |
+| [HBASE-21361](https://issues.apache.org/jira/browse/HBASE-21361) | Disable 
printing of stack-trace in shell when quotas are not enabled |  Minor | shell |
+| [HBASE-17356](https://issues.apache.org/jira/browse/HBASE-17356) | Add 
replica get support |  Major | Client |
+| [HBASE-21650](https://issues.apache.org/jira/browse/HBASE-21650) | Add DDL 
operation and some other miscellaneous to thrift2 |  Major | Thrift |
+| [HBASE-21401](https://issues.apache.org/jira/browse/HBASE-21401) | Sanity 
check when constructing the KeyValue |  Critical | regionserver |
+| [HBASE-21578](https://issues.apache.org/jira/browse/HBASE-21578) | Fix wrong 
throttling exception for capacity unit |  Major | . |
+| [HBASE-21570](https://issues.apache.org/jira/browse/HBASE-21570) | Add write 
buffer periodic flush support for AsyncBufferedMutator |  Major | asyncclient, 
Client |
+| [HBASE-21465](https://issues.apache.org/jira/browse/HBASE-21465) | Retry on 
reportRegionStateTransition can lead to unexpected errors |  Major | amv2 |
+| [HBASE-21508](https://issues.apache.org/jira/browse/HBASE-21508) | Ignore 
the reportRegionStateTransition call from a dead server |  Major | amv2 |
+| [HBASE-21490](https://issues.apache.org/jira/browse/HBASE-21490) | 
WALProcedure may remove proc wal files still with active procedures |  Major | 
proc-v2 |
+| [HBASE-21377](https://issues.apache.org/jira/browse/HBASE-21377) | Add debug 
log for procedure stack id related operations |  Major | proc-v2 |
+| [HBASE-21472](https://issues.apache.org/jira/browse/HBASE-21472) | Should 
not persist the dispatched field for RegionRemoteProcedureBase |  Major | amv2 |
+| [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-21463](https://issues.apache.org/jira/browse/HBASE-21463) | The 
checkOnlineRegionsReport can accidentally complete a TRSP |  Critical | amv2 |
+| [HBASE-21376](https://issues.apache.org/jira/browse/HBASE-21376) | Add some 
verbose log to MasterProcedureScheduler |  Major | logging, proc-v2 |
+| [HBASE-21443](https://issues.apache.org/jira/browse/HBASE-21443) | 
[hbase-connectors] Purge hbase-\* modules from core now they've been moved to 
hbase-connectors |  Major | hbase-connectors, spark |
+| [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-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-21322](https://issues.apache.org/jira/browse/HBASE-21322) | Add a 
scheduleServerCrashProcedure() API to HbckService |  Critical | 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-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-21269](https://issues.apache.org/jira/browse/HBASE-21269) | 
Forward-port to branch-2 " HBASE-21213 [hbck2] bypass leaves behind     state 
in RegionStates when assign/unassign" |  Major | amv2 |
+| [HBASE-20716](https://issues.apache.org/jira/browse/HBASE-20716) | Unsafe 
access cleanup |  Critical | Performance |
+| [HBASE-21330](https://issues.apache.org/jira/browse/HBASE-21330) | 
ReopenTableRegionsProcedure will enter an infinite loop if we schedule a TRSP 
at the same time |  Major | amv2 |
+| [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-21278](https://issues.apache.org/jira/browse/HBASE-21278) | Do not 
rollback successful sub procedures when rolling back a procedure |  Critical | 
proc-v2 |
+| [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-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-21244](https://issues.apache.org/jira/browse/HBASE-21244) | Skip 
persistence when retrying for assignment related procedures |  Major | amv2, 
Performance, 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-21227](https://issues.apache.org/jira/browse/HBASE-21227) | Implement 
exponential retrying backoff for Assign/UnassignRegionHandler introduced in 
HBASE-21217 |  Major | amv2, regionserver |
+| [HBASE-21217](https://issues.apache.org/jira/browse/HBASE-21217) | Revisit 
the executeProcedure method for open/close region |  Critical | amv2, proc-v2 |
+| [HBASE-21214](https://issues.apache.org/jira/browse/HBASE-21214) | [hbck2] 
setTableState just sets hbase:meta state, not in-memory state |  Major | amv2, 
hbck2 |
+| [HBASE-21023](https://issues.apache.org/jira/browse/HBASE-21023) | Add 
bypassProcedureToCompletion() API to HbckService |  Major | hbck2 |
+| [HBASE-21156](https://issues.apache.org/jira/browse/HBASE-21156) | [hbck2] 
Queue an assign of hbase:meta and bulk assign/unassign |  Critical | hbck2 |
+| [HBASE-21169](https://issues.apache.org/jira/browse/HBASE-21169) | Initiate 
hbck2 tool in hbase-operator-tools repo |  Major | hbck2 |
+| [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 |
+| [HBASE-21083](https://issues.apache.org/jira/browse/HBASE-21083) | Introduce 
a mechanism to bypass the execution of a stuck procedure |  Major | amv2 |
+| [HBASE-21017](https://issues.apache.org/jira/browse/HBASE-21017) | Revisit 
the expected states for open/close |  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-21095](https://issues.apache.org/jira/browse/HBASE-21095) | The 
timeout retry logic for several procedures are broken after master restarts |  
Critical | amv2, proc-v2 |
+| [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-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-20950](https://issues.apache.org/jira/browse/HBASE-20950) | Helper 
method to configure secure DFS cluster for tests |  Major | test |
+| [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-20939](https://issues.apache.org/jira/browse/HBASE-20939) | There 
will be race when we call suspendIfNotReady and then throw 
ProcedureSuspendedException |  Critical | amv2 |
+| [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-20846](https://issues.apache.org/jira/browse/HBASE-20846) | Restore 
procedure locks when master restarts |  Major | . |
+| [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-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-20776](https://issues.apache.org/jira/browse/HBASE-20776) | Update 
branch-2 version to 2.2.0-SNAPSHOT |  Major | build |
+
+
+### 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-18735](https://issues.apache.org/jira/browse/HBASE-18735) | Provide a 
fast mechanism for shutting down mini cluster |  Major | . |
+| [HBASE-21489](https://issues.apache.org/jira/browse/HBASE-21489) | TestShell 
is broken |  Major | shell |
+| [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-21057](https://issues.apache.org/jira/browse/HBASE-21057) | upgrade 
to latest spotbugs |  Minor | community, test |
+| [HBASE-21888](https://issues.apache.org/jira/browse/HBASE-21888) | Add a 
isClosed method to AsyncConnection |  Major | asyncclient, Client |
+| [HBASE-21884](https://issues.apache.org/jira/browse/HBASE-21884) | Fix 
box/unbox findbugs warning in secure bulk load |  Minor | . |
+| [HBASE-21859](https://issues.apache.org/jira/browse/HBASE-21859) | Add 
clearRegionLocationCache method for AsyncConnection |  Major | asyncclient, 
Client |
+| [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-21710](https://issues.apache.org/jira/browse/HBASE-21710) | Add quota 
related methods to the Admin interface |  Major | . |
+| [HBASE-21782](https://issues.apache.org/jira/browse/HBASE-21782) | 
LoadIncrementalHFiles should not be IA.Public |  Major | mapreduce |
+| [HBASE-21762](https://issues.apache.org/jira/browse/HBASE-21762) | Move some 
methods in ClusterConnection to Connection |  Major | Client |
+| [HBASE-21715](https://issues.apache.org/jira/browse/HBASE-21715) | Do not 
throw UnsupportedOperationException in ProcedureFuture.get |  Major | Client |
+| [HBASE-21716](https://issues.apache.org/jira/browse/HBASE-21716) | Add 
toStringCustomizedValues to TableDescriptor |  Major | . |
+| [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 | . |
+| [HBASE-21534](https://issues.apache.org/jira/browse/HBASE-21534) | 
TestAssignmentManager is flakey |  Major | test |
+| [HBASE-21541](https://issues.apache.org/jira/browse/HBASE-21541) | Move 
MetaTableLocator.verifyRegionLocation to hbase-rsgroup module |  Major | . |
+| [HBASE-21265](https://issues.apache.org/jira/browse/HBASE-21265) | Split up 
TestRSGroups |  Minor | rsgroup, test |
+| [HBASE-21517](https://issues.apache.org/jira/browse/HBASE-21517) | Move the 
getTableRegionForRow method from HMaster to TestMaster |  Major | test |
+| [HBASE-21281](https://issues.apache.org/jira/browse/HBASE-21281) | Update 
bouncycastle dependency. |  Major | dependencies, test |
+| [HBASE-21198](https://issues.apache.org/jira/browse/HBASE-21198) | Exclude 
dependency on net.minidev:json-smart |  Major | . |
+| [HBASE-21282](https://issues.apache.org/jira/browse/HBASE-21282) | Upgrade 
to latest jetty 9.2 and 9.3 versions |  Major | dependencies |
+| [HBASE-21287](https://issues.apache.org/jira/browse/HBASE-21287) | 
JVMClusterUtil Master initialization wait time not configurable |  Major | test 
|
+| [HBASE-21168](https://issues.apache.org/jira/browse/HBASE-21168) | 
BloomFilterUtil uses hardcoded randomness |  Trivial | . |
+| [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 |
+| [HBASE-20942](https://issues.apache.org/jira/browse/HBASE-20942) | Improve 
RpcServer TRACE logging |  Major | Operability |
+| [HBASE-20989](https://issues.apache.org/jira/browse/HBASE-20989) | Minor, 
miscellaneous logging fixes |  Trivial | logging |


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