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Posted to dev@zookeeper.apache.org by "Marshall McMullen (JIRA)" <ji...@apache.org> on 2012/11/30 06:27:58 UTC
[jira] [Created] (ZOOKEEPER-1594) TestReconfig intermittently fails
Marshall McMullen created ZOOKEEPER-1594:
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Summary: TestReconfig intermittently fails
Key: ZOOKEEPER-1594
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1594
Project: ZooKeeper
Issue Type: Bug
Components: c client
Affects Versions: 3.5.0
Reporter: Marshall McMullen
Assignee: Marshall McMullen
We've seen an intermittent failure in one of the C client tests TestReconfig which was committed as part of ZOOKEEPER-1355.
The test that is failing is failing *before* any rebalancing algorithm is invoked. After inspecting this we've concluded it is a failure to properly seed the random number generator properly. This same problem was seen and solved on the Java client side so we just need to do something similar on the C client side.
The assertion:
Build/trunk/src/c/tests/TestReconfig.cc:571: Assertion: assertion failed [Expression: numClientsPerHost.at(i) >= lowerboundClientsPerServer(numClients, numServers)]
[exec] [exec] Failures !!!
[exec] [exec] Run: 38 Failure total: 1 Failures: 1 Errors: 0
[exec] [exec] make: *** [run-check] Error 1
[exec]
[exec] BUILD FAILED
[exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1262: The following error occurred while executing this line:
[exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1272: exec returned: 2
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[jira] [Commented] (ZOOKEEPER-1594) TestReconfig intermittently
fails
Posted by "Marshall McMullen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507113#comment-13507113 ]
Marshall McMullen commented on ZOOKEEPER-1594:
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In the equivalent Java client test, the essential idea is to use a known seed of 1, but instead of using the random numbers directly from that, it passes the numbers generated into the client's invidiaul random number generators to be the seeds.
> TestReconfig intermittently fails
> ---------------------------------
>
> Key: ZOOKEEPER-1594
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1594
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.5.0
> Reporter: Marshall McMullen
> Assignee: Marshall McMullen
>
> We've seen an intermittent failure in one of the C client tests TestReconfig which was committed as part of ZOOKEEPER-1355.
> The test that is failing is failing *before* any rebalancing algorithm is invoked. After inspecting this we've concluded it is a failure to properly seed the random number generator properly. This same problem was seen and solved on the Java client side so we just need to do something similar on the C client side.
> The assertion:
> Build/trunk/src/c/tests/TestReconfig.cc:571: Assertion: assertion failed [Expression: numClientsPerHost.at(i) >= lowerboundClientsPerServer(numClients, numServers)]
> [exec] [exec] Failures !!!
> [exec] [exec] Run: 38 Failure total: 1 Failures: 1 Errors: 0
> [exec] [exec] make: *** [run-check] Error 1
> [exec]
> [exec] BUILD FAILED
> [exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1262: The following error occurred while executing this line:
> [exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1272: exec returned: 2
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