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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10897) On master start, deadlock if refresh UI
Date Thu, 10 Apr 2014 19:34:23 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965752#comment-13965752
] 

Hadoop QA commented on HBASE-10897:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12639610/hbase-10897_v4.patch
  against trunk revision .
  ATTACHMENT ID: 12639610

    {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 javadoc{color}.  The javadoc tool did not generate any warning messages.

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

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) 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 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/9248//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/9248//console

This message is automatically generated.

> On master start, deadlock if refresh UI
> ---------------------------------------
>
>                 Key: HBASE-10897
>                 URL: https://issues.apache.org/jira/browse/HBASE-10897
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.99.0
>            Reporter: stack
>            Assignee: Jimmy Xiang
>             Fix For: 0.99.0
>
>         Attachments: hbase-10897.patch, hbase-10897_v2.patch, hbase-10897_v3.patch, hbase-10897_v4.patch
>
>
> Playing w/ MTTR recovery on trunk, master starting up deadlocked:
> Waiting to finish active master initialization:
> {code}
> "ActiveMasterManager" daemon prio=10 tid=0x00007fafb5dc3800 nid=0x5fb5 waiting for monitor
entry [0x00007faf8f57d000]
>    java.lang.Thread.State: BLOCKED (on object monitor)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveZooKeeperWatcher(ConnectionManager.java:1683)
>         - waiting to lock <0x000000064ab4b9a8> (a java.lang.Object)
>         at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getMetaRegionLocation(ZooKeeperRegistry.java:53)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1029)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:989)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getRegionLocation(ConnectionManager.java:830)
>         at org.apache.hadoop.hbase.client.ConnectionAdapter.getRegionLocation(ConnectionAdapter.java:305)
>         at org.apache.hadoop.hbase.client.RegionServerCallable.prepare(RegionServerCallable.java:77)
>         at org.apache.hadoop.hbase.client.ScannerCallable.prepare(ScannerCallable.java:118)
>         at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:101)
>         at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:264)
>         at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:169)
>         at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:164)
>         at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:107)
>         at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:766)
>         at org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:539)
>         at org.apache.hadoop.hbase.catalog.MetaReader.fullScanOfMeta(MetaReader.java:140)
>         at org.apache.hadoop.hbase.catalog.MetaMigrationConvertingToPB.isMetaTableUpdated(MetaMigrationConvertingToPB.java:164)
>         at org.apache.hadoop.hbase.catalog.MetaMigrationConvertingToPB.updateMetaIfNecessary(MetaMigrationConvertingToPB.java:131)
>         at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:567)
>         at org.apache.hadoop.hbase.master.HMaster.access$500(HMaster.java:147)
>         at org.apache.hadoop.hbase.master.HMaster$1.run(HMaster.java:1242)
>         at java.lang.Thread.run(Thread.java:744)
> {code}
> ... but the master servlet has the lock while trying to access master:
> {code}
> "686004346@qtp-2101021459-0" daemon prio=10 tid=0x00007fafb5d2a800 nid=0x5fb1 waiting
on condition [0x00007faf8f87f000]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
>         at java.lang.Thread.sleep(Native Method)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStub(ConnectionManager.java:1562)
>         - locked <0x000000064ab4b9a8> (a java.lang.Object)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(ConnectionManager.java:1597)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveMasterService(ConnectionManager.java:1805)
>         - locked <0x000000064ab4b9a8> (a java.lang.Object)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.listTables(ConnectionManager.java:2481)
>         at org.apache.hadoop.hbase.client.HBaseAdmin.listTables(HBaseAdmin.java:321)
>         at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.__jamon_innerUnit__userTables(MasterStatusTmplImpl.java:530)
>         at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.renderNoFlush(MasterStatusTmplImpl.java:255)
>         at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.renderNoFlush(MasterStatusTmpl.java:382)
>         at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.render(MasterStatusTmpl.java:372)
>         at org.apache.hadoop.hbase.master.MasterStatusServlet.doGet(MasterStatusServlet.java:102)
> ...
> {code}



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