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From "Abdullah Alamoudi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ASTERIXDB-1389) ConcurrentModificationException from FeedJobNotificationHandler
Date Thu, 14 Apr 2016 09:24:25 GMT

     [ https://issues.apache.org/jira/browse/ASTERIXDB-1389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Abdullah Alamoudi resolved ASTERIXDB-1389.
------------------------------------------
    Resolution: Fixed

Fixed by ensuring synchronized write access to notification handler

> ConcurrentModificationException from FeedJobNotificationHandler
> ---------------------------------------------------------------
>
>                 Key: ASTERIXDB-1389
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1389
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: Feeds
>            Reporter: Yingyi Bu
>            Assignee: Abdullah Alamoudi
>            Priority: Critical
>              Labels: sporadic-error
>
> I run into this in a jenkins job.
> Console output:
> {noformat}
> CLOSE CALLED FOR STORE[0]{Tweets}
> CLOSE CALLED FOR STORE[2]{Tweets}
> CLOSE CALLED FOR STORE[3]{Tweets}
> CLOSE CALLED FOR STORE[1]{Tweets}
> SIGNALLING END OF DATA for STORE[0]{Tweets} mode is PROCESS WAITING ON org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@33ca7c85
> SIGNALLING END OF DATA for STORE[3]{Tweets} mode is PROCESS WAITING ON org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@3a4db11d
> SIGNALLING END OF DATA for STORE[1]{Tweets} mode is PROCESS WAITING ON org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@6905c15e
> ABOUT TO CLOSE OPERATOR  org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@33ca7c85
> ABOUT TO CLOSE OPERATOR  org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@3a4db11d
> SIGNALLING END OF DATA for STORE[2]{Tweets} mode is PROCESS WAITING ON org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@61544c90
> DEREGISTERING STORE[0]{Tweets}
> ABOUT TO CLOSE OPERATOR  org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@6905c15e
> DEREGISTERING STORE[3]{Tweets}
> ABOUT TO CLOSE OPERATOR  org.apache.asterix.common.dataflow.AsterixLSMInsertDeleteOperatorNodePushable@61544c90
> DEREGISTERING STORE[1]{Tweets}
> DEREGISTERING STORE[2]{Tweets}
> {noformat}
> Standard Error
> {noformat}
> testFile src/test/resources/runtimets/queries/feeds/drop-dataverse-with-disconnected-feed/drop-dataverse-with-disconnected-feed.3.ddl.aql
raised an exception:
> java.lang.Exception: HTTP operation failed: 99
> STATUS LINE: HTTP/1.1 500 Server Error
> SUMMARY: null
>  caused by: java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
> STACKTRACE: java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
> 	at java.util.HashMap$ValueIterator.next(HashMap.java:1458)
> 	at org.apache.asterix.app.external.FeedJobNotificationHandler.getActiveFeedConnections(FeedJobNotificationHandler.java:411)
> 	at org.apache.asterix.app.external.FeedLifecycleListener.getActiveFeedConnections(FeedLifecycleListener.java:415)
> 	at org.apache.asterix.aql.translator.QueryTranslator.handleDataverseDropStatement(QueryTranslator.java:1226)
> 	at org.apache.asterix.aql.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:307)
> 	at org.apache.asterix.aql.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:254)
> 	at org.apache.asterix.api.http.servlet.RESTAPIServlet.handleRequest(RESTAPIServlet.java:195)
> 	at org.apache.asterix.api.http.servlet.DDLAPIServlet.handleRequest(DDLAPIServlet.java:30)
> 	at org.apache.asterix.api.http.servlet.RESTAPIServlet.doPost(RESTAPIServlet.java:162)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:546)
> 	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
> 	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:228)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:956)
> 	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:411)
> 	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:891)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> 	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
> 	at org.eclipse.jetty.server.Server.handle(Server.java:353)
> 	at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:598)
> 	at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1076)
> 	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:805)
> 	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
> 	at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:427)
> 	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:510)
> 	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.access$000(SelectChannelEndPoint.java:34)
> 	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:450)
> 	at java.lang.Thread.run(Thread.java:745)
> 	at org.apache.asterix.test.aql.TestExecutor.executeHttpMethod(TestExecutor.java:272)
> 	at org.apache.asterix.test.aql.TestExecutor.executeDDL(TestExecutor.java:384)
> 	at org.apache.asterix.test.aql.TestExecutor.executeTest(TestExecutor.java:482)
> 	at org.apache.asterix.test.aql.TestExecutor.executeTest(TestExecutor.java:755)
> 	at org.apache.asterix.test.runtime.ExecutionTest.test(ExecutionTest.java:105)
> 	at sun.reflect.GeneratedMethodAccessor33.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:497)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> 	at org.junit.runners.Suite.runChild(Suite.java:127)
> 	at org.junit.runners.Suite.runChild(Suite.java:26)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
> 	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
> 	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
> 	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
> ...Unexpected!
> {noformat}



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