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https://issues.apache.org/jira/browse/DRILL-3890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Victoria Markman reassigned DRILL-3890:
---------------------------------------
Assignee: Victoria Markman
> TPCH Concurrency test hit foremanException even when all the drillbits are
> alive
> --------------------------------------------------------------------------------
>
> Key: DRILL-3890
> URL: https://issues.apache.org/jira/browse/DRILL-3890
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 1.2.0
> Environment: ucs-node 1 - node 11 (10+1 node cluster), RHEL 6.4 Linux
> 2.6.32-358.el6.x86_64, MapR 4.0.2.29870.GA, drill 1.2 master git commitID
> f78ab84183e73216b76732f66f87ccf48e2340d3
> Reporter: Dechang Gu
> Assignee: Victoria Markman
>
> In TPCH Concurrency test, when number of query threads is 24 or more, many
> queries are terminated due to "FroemanException", for example:
> SYSTEM ERROR: ForemanException: One more more nodes lost connectivity during
> query. Identified nodes were [ucs-node8.perf.lab:31010].
> (org.apache.drill.exec.work.foreman.ForemanException) One more more nodes
> lost connectivity during query. Identified nodes were
> [ucs-node8.perf.lab:31010].
> org.apache.drill.exec.work.foreman.QueryManager$2.drillbitUnregistered():527
> org.apache.drill.exec.coord.ClusterCoordinator.drillbitUnregistered():68
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator.updateEndpoints():248
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator.access$300():58
> org.apache.drill.exec.coord.zk.ZKClusterCoordinator$ZKListener.cacheChanged():154
> org.apache.curator.x.discovery.details.ServiceCacheImpl$2.apply():164
> org.apache.curator.x.discovery.details.ServiceCacheImpl$2.apply():160
> org.apache.curator.framework.listen.ListenerContainer$1.run():92
> com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute():293
> org.apache.curator.framework.listen.ListenerContainer.forEach():83
> org.apache.curator.x.discovery.details.ServiceCacheImpl.childEvent():157
> org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply():509
> org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply():503
> org.apache.curator.framework.listen.ListenerContainer$1.run():92
> com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute():293
> org.apache.curator.framework.listen.ListenerContainer.forEach():83
> org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners():500
> org.apache.curator.framework.recipes.cache.EventOperation.invoke():35
> org.apache.curator.framework.recipes.cache.PathChildrenCache$10.run():762
> java.util.concurrent.Executors$RunnableAdapter.call():471
> java.util.concurrent.FutureTask.run():262
> java.util.concurrent.Executors$RunnableAdapter.call():471java.util.concurrent.FutureTask.run():262
> java.util.concurrent.ThreadPoolExecutor.runWorker():1145
> java.util.concurrent.ThreadPoolExecutor$Worker.run():615
> java.lang.Thread.run():745
> But at that time the drillbit on the identified node is still active.
> It works fine with 16 or fewer query threads.
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