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https://issues.apache.org/jira/browse/BOOKKEEPER-668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13731042#comment-13731042
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Hadoop QA commented on BOOKKEEPER-668:
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Testing JIRA BOOKKEEPER-668
Patch
[BOOKKEEPER-668.diff|https://issues.apache.org/jira/secure/attachment/12596373/BOOKKEEPER-668.diff]
downloaded at Tue Aug 6 17:49:50 UTC 2013
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{color:green}+1 PATCH_APPLIES{color}
{color:green}+1 CLEAN{color}
{color:red}-1 RAW_PATCH_ANALYSIS{color}
. {color:green}+1{color} the patch does not introduce any @author tags
. {color:green}+1{color} the patch does not introduce any tabs
. {color:green}+1{color} the patch does not introduce any trailing spaces
. {color:green}+1{color} the patch does not introduce any line longer than
120
. {color:red}-1{color} the patch does not add/modify any testcase
{color:green}+1 RAT{color}
. {color:green}+1{color} the patch does not seem to introduce new RAT
warnings
{color:green}+1 JAVADOC{color}
. {color:green}+1{color} the patch does not seem to introduce new Javadoc
warnings
{color:green}+1 COMPILE{color}
. {color:green}+1{color} HEAD compiles
. {color:green}+1{color} patch compiles
. {color:green}+1{color} the patch does not seem to introduce new javac
warnings
{color:green}+1 FINDBUGS{color}
. {color:green}+1{color} the patch does not seem to introduce new Findbugs
warnings
{color:green}+1 TESTS{color}
. Tests run: 863
{color:green}+1 DISTRO{color}
. {color:green}+1{color} distro tarball builds with the patch
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{color:red}*-1 Overall result, please check the reported -1(s)*{color}
The full output of the test-patch run is available at
. https://builds.apache.org/job/bookkeeper-trunk-precommit-build/451/
> Race between PerChannelBookieClient#channelDisconnected() and disconnect()
> calls can make clients hang while add/reading entries in case of multiple
> bookie failures
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-668
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-668
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-client
> Affects Versions: 4.2.1, 4.3.0
> Reporter: Vinay
> Assignee: Sijie Guo
> Fix For: 4.2.2, 4.3.0
>
> Attachments: BOOKKEEPER-668.diff
>
>
> 1. Ledger was created with ensemble 2 and quorum as 2 and entries were
> written.
> 2. While reading entries, 2 BKs out of 3 in cluster were killed and restarted.
> 3. Client was hung at read call waiting for sync counter notification.
> As though I was not able to reproduce this in some tries, but
> By looking at the logs and code, following seems to be problem
> 1. BookieWatcher got the notification first for changes in available bookies.
> 2. PerChannelBookieClient#disconnect() called from BookieWatcher for failed
> bookies. This has set the 'this.channel=null;'
> 3. PerChannelBookieClient#channelDisconnected() call came now, and it
> proceeded silently without notifying errors to read ops.
> So client is hung waiting for result.
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