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https://issues.apache.org/jira/browse/HIVE-12797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15116324#comment-15116324
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Siddharth Seth commented on HIVE-12797:
---------------------------------------
I'm still seeing this. Re-opening.
{code}
2016-01-25T19:02:06,280 ERROR [Thread-8]: server.HiveServer2
(HiveServer2.java:stop(490)) - Tez session pool manager stop had an error
during stop of HiveServer2. Shutting down HiveServer2 anyway.
java.util.ConcurrentModificationException
at
java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966)
~[?:1.8.0_40]
at java.util.LinkedList$ListItr.remove(LinkedList.java:921)
~[?:1.8.0_40]
at
org.apache.hadoop.hive.ql.exec.tez.TezSessionPoolManager.stop(TezSessionPoolManager.java:339)
~[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
at
org.apache.hive.service.server.HiveServer2.stop(HiveServer2.java:488)
[hive-jdbc-2.1.0-SNAPSHOT-standalone.jar:2.1.0-SNAPSHOT]
at
org.apache.hive.service.server.HiveServer2$2.run(HiveServer2.java:192)
[hive-jdbc-2.1.0-SNAPSHOT-standalone.jar:2.1.0-SNAPSHOT]
{code}
> Synchronization issues with tez/llap session pool in hs2
> --------------------------------------------------------
>
> Key: HIVE-12797
> URL: https://issues.apache.org/jira/browse/HIVE-12797
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 2.0.0
> Reporter: Vikram Dixit K
> Assignee: Vikram Dixit K
> Fix For: 2.0.0, 2.1.0
>
> Attachments: HIVE-12797.1.patch, HIVE-12797.2.patch,
> HIVE-12797.3.patch, HIVE-12797.4.patch
>
>
> The changes introduced as part of HIVE-12674 causes issues while shutting
> down hs2 when session pools are used.
> {code}
> java.util.ConcurrentModificationException
> at
> java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966)
> ~[?:1.8.0_45]
> at java.util.LinkedList$ListItr.remove(LinkedList.java:921)
> ~[?:1.8.0_45]
> at
> org.apache.hadoop.hive.ql.exec.tez.TezSessionPoolManager.stop(TezSessionPoolManager.java:288)
> ~[hive-exec-2.0.0.2.3.5.0-79.jar:2.0.0.2.3.5.0-79]
> at
> org.apache.hive.service.server.HiveServer2.stop(HiveServer2.java:479)
> [hive-jdbc-2.0.0.2.3.5.0-79-standalone.jar:2.0.0.2.3.5.0-79]
> at
> org.apache.hive.service.server.HiveServer2$2.run(HiveServer2.java:183)
> [hive-jdbc-2.0.0.2.3.5.0-79-standalone.jar:2.0.0.2.3.5.0-79]
> {code}
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