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https://issues.apache.org/jira/browse/HIVE-7069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuefu Zhang resolved HIVE-7069.
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Resolution: Fixed
Fix Version/s: 0.15.0
Fixed via HIVE-9119.
> Zookeeper connection leak
> -------------------------
>
> Key: HIVE-7069
> URL: https://issues.apache.org/jira/browse/HIVE-7069
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 0.12.0
> Environment: Linux 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25
> 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
> Reporter: Zilvinas Saltys
> Fix For: 0.15.0
>
>
> We're using CDH 5.0.0 which ships with HIVE 0.12.0. We're running HiveServer2
> and connect to it via JDBC. We have zookeeper support enabled. If a
> connection is made to HS2 and not explicitly closed via JDBC then a
> connection made to zookeeper is never released. It reaches a point where HS2
> hangs and stops executing any new queries. It's easy to replicate with a
> simple script that connects to HS2 via JDBC and runs a simple query like
> 'show tables'. At the same time run this on the hive server machine to
> monitor zookeeper connections: 'while sleep 1; do netstat -anlp | grep 2181 |
> wc -l; done' .. If you close the connection explicitly the count will go down
> soon after the program exits.
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