Hadoop QA commented on ZOOKEEPER-512:
-1 overall. Here are the results of testing the latest attachment
against trunk revision 828216.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
This message is automatically generated.
> FLE election fails to elect leader
> Key: ZOOKEEPER-512
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-512
> Project: Zookeeper
> Issue Type: Bug
> Components: quorum, server
> Affects Versions: 3.2.0
> Reporter: Patrick Hunt
> Assignee: Flavio Paiva Junqueira
> Priority: Blocker
> Fix For: 3.3.0
> Attachments: jst.txt, log3_debug.tar.gz, logs.tar.gz, logs2.tar.gz,
> t5_aj.tar.gz, ZOOKEEPER-512.patch, ZOOKEEPER-512.patch, ZOOKEEPER-512.patch,
> ZOOKEEPER-512.patch, ZOOKEEPER-512.patch
> I was doing some fault injection testing of 3.2.1 with ZOOKEEPER-508 patch
> applied and noticed that after some time the ensemble failed to re-elect a
> See the attached log files - 5 member ensemble. typically 5 is the leader
> Notice that after 16:23:50,525 no quorum is formed, even after 20 minutes
> elapses w/no quorum
> I was doing fault injection testing using aspectj. The faults are injected
> into socketchannel read/write, I throw exceptions randomly at a 1/200 ratio
> (rand.nextFloat() <= .005 => throw IOException
> You can see when a fault is injected in the log via:
> 2009-08-19 16:57:09,568 - INFO [Thread-74:readrequestfailsintermitten...@38]
> - READPACKET FORCED FAIL
> vs a read/write that didn't force fail:
> 2009-08-19 16:57:09,568 - INFO [Thread-74:readrequestfailsintermitten...@41]
> - READPACKET OK
> otw standard code/config (straight fle quorum with 5 members)
> also see the attached jstack trace. this is for one of the servers. Notice in
> particular that the number of sendworkers != the number of recv workers.
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