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Posted to issues@kudu.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2017/03/30 21:32:41 UTC

[jira] [Updated] (KUDU-1962) NPE and lost callback in Java client when master queue overflows

     [ https://issues.apache.org/jira/browse/KUDU-1962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated KUDU-1962:
------------------------------
    Fix Version/s: 1.4.0

> NPE and lost callback in Java client when master queue overflows
> ----------------------------------------------------------------
>
>                 Key: KUDU-1962
>                 URL: https://issues.apache.org/jira/browse/KUDU-1962
>             Project: Kudu
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.3.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>             Fix For: 1.4.0
>
>
> An Impala user reported seeing the following stack trace in the frontend, followed by a query hanging in planning:
> {code}
> 	
> Mar 30, 2017 2:14:32 AM org.apache.kudu.client.shaded.org.jboss.netty.util.HashedWheelTimer
> WARNING: An exception was thrown by TimerTask.
> java.lang.NullPointerException
> at org.apache.kudu.client.AsyncKuduClient.sendRpcToTablet(AsyncKuduClient.java:737)
> at org.apache.kudu.client.AsyncKuduClient$2RetryTimer.run(AsyncKuduClient.java:1297)
> at org.apache.kudu.client.shaded.org.jboss.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:556)
> at org.apache.kudu.client.shaded.org.jboss.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:632)
> at org.apache.kudu.client.shaded.org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:369)
> at org.apache.kudu.client.shaded.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
> at java.lang.Thread.run(Thread.java:745)
> {code}



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