Repository: hbase
Updated Branches:
  refs/heads/branch-2.1 c9e85773d -> 434bd0cd9


HBASE-21566 Release notes and changes for 2.0.4RC0 and 2.1.2RC0


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/434bd0cd
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/434bd0cd
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/434bd0cd

Branch: refs/heads/branch-2.1
Commit: 434bd0cd91d08353a8e7207ced530df3b3b1af76
Parents: c9e8577
Author: stack <st...@apache.org>
Authored: Thu Dec 6 21:54:17 2018 -0800
Committer: stack <st...@apache.org>
Committed: Thu Dec 6 21:54:17 2018 -0800

----------------------------------------------------------------------
 CHANGES.md      | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 RELEASENOTES.md | 67 +++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 138 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/434bd0cd/CHANGES.md
----------------------------------------------------------------------
diff --git a/CHANGES.md b/CHANGES.md
index 643c928..06169ad 100755
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -18,6 +18,78 @@
 # limitations under the License.
 -->
 
+## Release 2.1.2 - Unreleased (as of 2018-12-07)
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [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 | . |
+| [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-21388](https://issues.apache.org/jira/browse/HBASE-21388) | No need 
to instantiate MemStoreLAB for master which not carry table |  Major | . |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [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-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-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 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-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-21356](https://issues.apache.org/jira/browse/HBASE-21356) | 
bulkLoadHFile API should ensure that rs has the source hfile's write permission 
|  Major | . |
+| [HBASE-21055](https://issues.apache.org/jira/browse/HBASE-21055) | 
NullPointerException when balanceOverall() but server balance info is null |  
Major | Balancer |
+
+
+### 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-21377](https://issues.apache.org/jira/browse/HBASE-21377) | Add debug 
log for procedure stack id related operations |  Major | proc-v2 |
+| [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-21442](https://issues.apache.org/jira/browse/HBASE-21442) | Update 
branch-2.1 for next development cycle |  Major | build |
+| [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-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 |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component |
+|:---- |:---- | :--- |:---- |
+| [HBASE-18735](https://issues.apache.org/jira/browse/HBASE-18735) | Provide a 
fast mechanism for shutting down mini cluster |  Major | . |
+| [HBASE-21517](https://issues.apache.org/jira/browse/HBASE-21517) | Move the 
getTableRegionForRow method from HMaster to TestMaster |  Major | test |
+
+
 ## Release 2.1.1 - Released 2018-10-31
 
 ### INCOMPATIBLE CHANGES:

http://git-wip-us.apache.org/repos/asf/hbase/blob/434bd0cd/RELEASENOTES.md
----------------------------------------------------------------------
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index eb2ac77..a6e6778 100755
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,4 +1,4 @@
-# HBASE  2.1.1 Release Notes
+# HBASE  2.1.2 Release Notes
 
 <!---
 # Licensed to the Apache Software Foundation (ASF) under one
@@ -23,6 +23,71 @@ These release notes cover new developer and user-facing 
incompatibilities, impor
 
 ---
 
+* [HBASE-21551](https://issues.apache.org/jira/browse/HBASE-21551) | *Blocker* 
| **Memory leak when use scan with STREAM at server side**
+
+<!-- markdown -->
+### Summary
+HBase clusters will experience Region Server failures due to out of memory 
errors due to a leak given any of the following:
+
+* User initiates Scan operations set to use the STREAM reading type
+* User initiates Scan operations set to use the default reading type that read 
more than 4 * the block size of column families involved in the scan (e.g. by 
default 4*64KiB)
+* Compactions run
+
+### Root cause
+
+When there are long running scans the Region Server process attempts to 
optimize access by using a different API geared towards sequential access. Due 
to an error in HBASE-20704 for HBase 2.0+ the Region Server fails to release 
related resources when those scans finish. That same optimization path is 
always used for the HBase internal file compaction process.
+
+### Workaround
+
+Impact for this error can be minimized by setting the config value 
“hbase.storescanner.pread.max.bytes” to MAX_INT to avoid the optimization 
for default user scans. Clients should also be checked to ensure they do not 
pass the STREAM read type to the Scan API. This will have a severe impact on 
performance for long scans.
+
+Compactions always use this sequential optimized reading mechanism so 
downstream users will need to periodically restart Region Server roles after 
compactions have happened.
+
+
+---
+
+* [HBASE-21387](https://issues.apache.org/jira/browse/HBASE-21387) | *Major* | 
**Race condition surrounding in progress snapshot handling in snapshot cache 
leads to loss of snapshot files**
+
+To prevent race condition between in progress snapshot (performed by 
TakeSnapshotHandler) and HFileCleaner which results in data loss, this JIRA 
introduced mutual exclusion between taking snapshot and running HFileCleaner. 
That is, at any given moment, either some snapshot can be taken or, 
HFileCleaner checks hfiles which are not referenced, but not both can be 
running.
+
+
+---
+
+* [HBASE-21423](https://issues.apache.org/jira/browse/HBASE-21423) | *Major* | 
**Procedures for meta table/region should be able to execute in separate 
workers**
+
+The procedure for meta table will be executed in a separate worker thread 
named 'Urgent Worker' to avoid stuck. A new config named 
'hbase.master.urgent.procedure.threads' is added, the default value for it is 
1. To disable the separate worker, set it to 0.
+
+
+---
+
+* [HBASE-21417](https://issues.apache.org/jira/browse/HBASE-21417) | 
*Critical* | **Pre commit build is broken due to surefire plugin crashes**
+
+Add -Djdk.net.URLClassPath.disableClassPathURLCheck=true when executing 
surefire plugin.
+
+
+---
+
+* [HBASE-21237](https://issues.apache.org/jira/browse/HBASE-21237) | *Blocker* 
| **Use CompatRemoteProcedureResolver to dispatch open/close region requests to 
RS**
+
+Use CompatRemoteProcedureResolver  instead of ExecuteProceduresRemoteCall to 
dispatch region open/close requests to RS. Since ExecuteProceduresRemoteCall  
will group all the open/close operations in one call and execute them 
sequentially on the target RS. If one operation fails, all the operation will 
be marked as failure.
+
+
+---
+
+* [HBASE-21322](https://issues.apache.org/jira/browse/HBASE-21322) | *Major* | 
**Add a scheduleServerCrashProcedure() API to HbckService**
+
+Adds scheduleServerCrashProcedure to the HbckService.
+
+
+
+
+# HBASE  2.1.1 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, 
important issues, features, and major improvements.
+
+
+---
+
 * [HBASE-21215](https://issues.apache.org/jira/browse/HBASE-21215) | *Major* | 
**Figure how to invoke hbck2; make it easy to find**
 
 Adds to bin/hbase means of invoking hbck2. Pass the new '-j' option on the 
'hbck' command with a value of the full path to the HBCK2.jar.

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