[HIVE-12926] Another synchronization issue with tez/llap session pool in hs2 - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Critical
Resolution: Fixed
Affects Version/s: 2.0.0
Fix Version/s: 2.0.0
Component/s: HiveServer2
Labels:
None

Target Version/s:

2.0.0

Description

The changes introduced as part of ~~HIVE-12674~~ causes issues while shutting down hs2 when session pools are used.

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]