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https://issues.apache.org/jira/browse/DRILL-2120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Westin updated DRILL-2120:
--------------------------------
Fix Version/s: (was: 1.2.0)
1.3.0
> Bringing up multiple drillbits at same time results in synchronization failure
> ------------------------------------------------------------------------------
>
> Key: DRILL-2120
> URL: https://issues.apache.org/jira/browse/DRILL-2120
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Flow
> Affects Versions: 0.8.0
> Reporter: Ramana Inukonda Nagaraj
> Assignee: Steven Phillips
> Fix For: 1.3.0
>
>
> Repro:
> With a fresh ZK install bring up 4 drillbits at the same time using something
> like clush
> clush -g ats /opt/drill/bin/drillbit.sh start
> Looks like all 4 nodes try to query the ZK to see if the node exists and all
> of them try to create it at the same time. Some succeed, Others don't. The
> ones which fail have incorrect information about the state of the ZK and that
> would explain the below stacktrace.
> {code}
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more
> info.
> Exception in thread "main"
> org.apache.drill.exec.exception.DrillbitStartupException: Failure during
> initial startup of Drillbit.
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:76)
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:60)
> at org.apache.drill.exec.server.Drillbit.main(Drillbit.java:83)
> Caused by: java.lang.RuntimeException: Failure while accessing Zookeeper
> at
> org.apache.drill.exec.store.sys.zk.ZkAbstractStore.putIfAbsent(ZkAbstractStore.java:135)
> at
> org.apache.drill.exec.store.StoragePluginRegistry.createPlugins(StoragePluginRegistry.java:150)
> at
> org.apache.drill.exec.store.StoragePluginRegistry.init(StoragePluginRegistry.java:130)
> at org.apache.drill.exec.server.Drillbit.run(Drillbit.java:155)
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:73)
> ... 2 more
> Caused by: java.lang.RuntimeException: Failure while accessing Zookeeper
> at
> org.apache.drill.exec.store.sys.zk.ZkPStore.createNodeInZK(ZkPStore.java:53)
> at
> org.apache.drill.exec.store.sys.zk.ZkAbstractStore.putIfAbsent(ZkAbstractStore.java:129)
> ... 6 more
> Caused by: org.apache.zookeeper.KeeperException$NodeExistsException:
> KeeperErrorCode = NodeExists for /drill-ats-build/sys.storage_plugins/cp
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:119)
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:676)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:660)
> at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:656)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:441)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:431)
> at
> org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44)
> at
> org.apache.drill.exec.store.sys.zk.ZkPStore.createNodeInZK(ZkPStore.java:51)
> ... 7 more
> {code}
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