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https://issues.apache.org/jira/browse/KUDU-3019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zoltán Borók-Nagy updated KUDU-3019:
------------------------------------
Affects Version/s: 1.6.0
> Kudu client hangs in Deffered.join()
> ------------------------------------
>
> Key: KUDU-3019
> URL: https://issues.apache.org/jira/browse/KUDU-3019
> Project: Kudu
> Issue Type: Bug
> Affects Versions: 1.6.0
> Reporter: Zoltán Borók-Nagy
> Priority: Major
>
> In Impala we've seen the Kudu client hanging with the following stack trace:
> {noformat}
> Thread 53015: (state = BLOCKED)
> - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be
> imprecise)
> - java.lang.Object.wait() @bci=2, line=502 (Compiled frame)
> - com.stumbleupon.async.Deferred.doJoin(boolean, long) @bci=77, line=1122
> (Compiled frame)
> - com.stumbleupon.async.Deferred.join() @bci=3, line=1006 (Compiled frame)
> -
> org.apache.kudu.client.KuduClient.joinAndHandleException(com.stumbleupon.async.Deferred)
> @bci=1, line=340 (Compiled frame)
> - org.apache.kudu.client.KuduClient.openTable(java.lang.String) @bci=10,
> line=212 (Compiled frame)
> -
> org.apache.impala.planner.KuduScanNode.init(org.apache.impala.analysis.Analyzer)
> @bci=32, line=115 (Compiled frame)
> -
> org.apache.impala.planner.SingleNodePlanner.createScanNode(org.apache.impala.analysis.TableRef,
> org.apache.impala.analysis.AggregateInfo,
> org.apache.impala.analysis.Analyzer) @bci=252, line=1312 (Compiled frame)
> ...{noformat}
> The client hangs in Deferred.join():
> [https://github.com/apache/kudu/blob/a8c6ea258c06407c1a4fef260da3a1cb70529bd9/java/kudu-client/src/main/java/org/apache/kudu/client/KuduClient.java#L423]
> To at least mitigate the problem, maybe Deferred.join(long timeout) could be
> used instead.
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