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Surya Kiran commented on HIVE-18262: ------------------------------------ [~kuczoram] - can you please share if you have made any progress in resolving or working around this issue? We have a production environment that is on CDH 5.8.3, and we started to encounter this exception randomly. Cheers!! > ConcurrentModificationException in QueryPlan.extractCounters > ------------------------------------------------------------ > > Key: HIVE-18262 > URL: https://issues.apache.org/jira/browse/HIVE-18262 > Project: Hive > Issue Type: Bug > Components: HiveServer2 > Affects Versions: 2.3.2 > Reporter: Marta Kuczora > Assignee: Marta Kuczora > Priority: Major > > Intermittently experiencing an issue where the query fails with the following > error: > {noformat} > 2017-10-27 03:05:48,194 ERROR org.apache.hadoop.hive.ql.Driver: > [HiveServer2-Handler-Pool: Thread-10925531]: FAILED: Hive Internal Error: > java.util.ConcurrentModificationException(null) > java.util.ConcurrentModificationException > at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) > at java.util.ArrayList$Itr.next(ArrayList.java:851) > at org.apache.hadoop.hive.ql.QueryPlan.extractCounters(QueryPlan.java:381) > at org.apache.hadoop.hive.ql.QueryPlan.getQueryPlan(QueryPlan.java:436) > at > org.apache.hadoop.hive.ql.exec.Utilities.setWorkflowAdjacencies(Utilities.java:471) > at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1950) > at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1684) > at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1421) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1205) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1200) > at > org.apache.hive.service.cli.operation.SQLOperation.runQuery(SQLOperation.java:187) > at > org.apache.hive.service.cli.operation.SQLOperation.runInternal(SQLOperation.java:217) > at org.apache.hive.service.cli.operation.Operation.run(Operation.java:337) > at > org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementInternal(HiveSessionImpl.java:425) > at > org.apache.hive.service.cli.session.HiveSessionImpl.executeStatement(HiveSessionImpl.java:396) > at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:78) > at > org.apache.hive.service.cli.session.HiveSessionProxy.access$000(HiveSessionProxy.java:36) > at > org.apache.hive.service.cli.session.HiveSessionProxy$1.run(HiveSessionProxy.java:63) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1912) > at > org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:59) > at com.sun.proxy.$Proxy19.executeStatement(Unknown Source) > at > org.apache.hive.service.cli.CLIService.executeStatement(CLIService.java:247) > at > org.apache.hive.service.cli.thrift.ThriftCLIService.ExecuteStatement(ThriftCLIService.java:500) > at > org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1313) > at > org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1298) > at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) > at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) > at > org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:56) > at > org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > {noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)