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https://issues.apache.org/jira/browse/ZOOKEEPER-1866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878633#comment-13878633
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Germán Blanco commented on ZOOKEEPER-1866:
------------------------------------------
One could fix createClient so that it checks JMXEnv and if the client is not
there, then it closes the client and tries again.
That might work, and I will prepare the patch in case anyone wants to give it a
try.
However, it is very strange that we have at least one case in which the client
seems to see zxid=0x1000..0003 and the server only zxid=0x0. I think it would
be worthwhile to look at how that happened, but for that we might need e.g.
more traces ... and if we increase the debugging level a lot of things could
happen since we have seen that many of these issues are related with overload
in CPU already with the current debugging level.
> ClientBase#createClient is failing frequently
> ---------------------------------------------
>
> Key: ZOOKEEPER-1866
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1866
> Project: ZooKeeper
> Issue Type: Sub-task
> Components: tests
> Affects Versions: 3.4.5
> Reporter: Rakesh R
> Assignee: Germán Blanco
> Fix For: 3.4.6
>
> Attachments: ZOOKEEPER-1866.patch
>
>
> Following failure pattern has been observed many times in windows build.
> After creating the zookeeper client, the respective connection bean is not
> available in the jmx beans and is failing the tests.
> {code}
> [junit] 2014-01-22 08:58:22,625 [myid:] - INFO [main:ZKTestCase$1@65] -
> FAILED testInvalidVersion
> [junit] junit.framework.AssertionFailedError: expected
> [0x143b92b03330000] expected:<1> but was:<0>
> [junit] at junit.framework.Assert.fail(Assert.java:47)
> [junit] at junit.framework.Assert.failNotEquals(Assert.java:283)
> [junit] at junit.framework.Assert.assertEquals(Assert.java:64)
> [junit] at junit.framework.Assert.assertEquals(Assert.java:195)
> [junit] at org.apache.zookeeper.test.JMXEnv.ensureAll(JMXEnv.java:124)
> [junit] at
> org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:191)
> [junit] at
> org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:171)
> [junit] at
> org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:156)
> [junit] at
> org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:149)
> [junit] at
> org.apache.zookeeper.test.MultiTransactionTest.setUp(MultiTransactionTest.java:60)
> {code}
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