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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14178) regionserver blocks because of waiting for offsetLock
Date Wed, 05 Aug 2015 14:17:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14658266#comment-14658266
] 

Hadoop QA commented on HBASE-14178:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12748841/HBASE-14178_v6.patch
  against master branch at commit 18c9bb8b54a5bb101f793e555272cbc74b8288cb.
  ATTACHMENT ID: 12748841

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 protoc{color}.  The applied patch does not increase the total number of
protoc compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle errors

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

  {color:green}+1 site{color}.  The mvn post-site goal succeeds with this patch.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/14983//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/14983//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/14983//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/14983//console

This message is automatically generated.

> regionserver blocks because of waiting for offsetLock
> -----------------------------------------------------
>
>                 Key: HBASE-14178
>                 URL: https://issues.apache.org/jira/browse/HBASE-14178
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.98.6
>            Reporter: Heng Chen
>            Priority: Critical
>             Fix For: 0.98.6
>
>         Attachments: HBASE-14178-0.98.patch, HBASE-14178.patch, HBASE-14178_v1.patch,
HBASE-14178_v2.patch, HBASE-14178_v3.patch, HBASE-14178_v4.patch, HBASE-14178_v5.patch, HBASE-14178_v6.patch,
jstack
>
>
> My regionserver blocks, and all client rpc timeout. 
> I print the regionserver's jstack,  it seems a lot of threads were blocked for waiting
offsetLock, detail infomation belows:
> PS:  my table's block cache is off
> {code}
> "B.DefaultRpcServer.handler=2,queue=2,port=60020" #82 daemon prio=5 os_prio=0 tid=0x0000000001827000
nid=0x2cdc in Object.wait() [0x00007f3831b72000]
>    java.lang.Thread.State: WAITING (on object monitor)
>         at java.lang.Object.wait(Native Method)
>         at java.lang.Object.wait(Object.java:502)
>         at org.apache.hadoop.hbase.util.IdLock.getLockEntry(IdLock.java:79)
>         - locked <0x0000000773af7c18> (a org.apache.hadoop.hbase.util.IdLock$Entry)
>         at org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:352)
>         at org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.loadDataBlockWithScanInfo(HFileBlockIndex.java:253)
>         at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:524)
>         at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.reseekTo(HFileReaderV2.java:572)
>         at org.apache.hadoop.hbase.regionserver.StoreFileScanner.reseekAtOrAfter(StoreFileScanner.java:257)
>         at org.apache.hadoop.hbase.regionserver.StoreFileScanner.reseek(StoreFileScanner.java:173)
>         at org.apache.hadoop.hbase.regionserver.NonLazyKeyValueScanner.doRealSeek(NonLazyKeyValueScanner.java:55)
>         at org.apache.hadoop.hbase.regionserver.KeyValueHeap.generalizedSeek(KeyValueHeap.java:313)
>         at org.apache.hadoop.hbase.regionserver.KeyValueHeap.requestSeek(KeyValueHeap.java:269)
>         at org.apache.hadoop.hbase.regionserver.StoreScanner.reseek(StoreScanner.java:695)
>         at org.apache.hadoop.hbase.regionserver.StoreScanner.seekAsDirection(StoreScanner.java:683)
>         at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:533)
>         at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:140)
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:3889)
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:3969)
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3847)
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3820)
>         - locked <0x00000005e5c55ad0> (a org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl)
>         at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3807)
>         at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4779)
>         at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4753)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2916)
>         at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29583)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2027)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94)
>         at java.lang.Thread.run(Thread.java:745)
>    Locked ownable synchronizers:
>         - <0x00000005e5c55c08> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
> {code}



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