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Posted to issues@hive.apache.org by "chenjianxun (JIRA)" <ji...@apache.org> on 2019/03/12 11:50:00 UTC
[jira] [Commented] (HIVE-14430) More instances of HiveConf and the
associated UDFClassLoader than expected
[ https://issues.apache.org/jira/browse/HIVE-14430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16790464#comment-16790464 ]
chenjianxun commented on HIVE-14430:
------------------------------------
is there any progess for this issue?
i have got the same problem, the instances of "org.apache.hadoop.hive.conf.HiveConf" keep growing.
and the dump file of hiveserver2 shows that there is a memory leak problem
i am using hive 2.3.4 and hadoop-2.6.0-cdh5.16.1
Leak Suspects
1,041 instances of *"org.apache.hadoop.hive.conf.HiveConf"*, loaded by *"sun.misc.Launcher$AppClassLoader @ 0xeaaa0058"* occupy *270,268,056 (52.70%)* bytes. These instances are referenced from one instance of *"java.util.HashMap$Node[]"*, loaded by *"<system class loader>"*
> More instances of HiveConf and the associated UDFClassLoader than expected
> --------------------------------------------------------------------------
>
> Key: HIVE-14430
> URL: https://issues.apache.org/jira/browse/HIVE-14430
> Project: Hive
> Issue Type: Sub-task
> Components: HiveServer2
> Reporter: Siddharth Seth
> Assignee: Vaibhav Gumashta
> Priority: Critical
>
> 841 instances of HiveConf.
> 831 instances of UDFClassLoader
> This is on a HS2 instance configured to run 10 concurrent queries with LLAP.
> 10 SessionState instances. Something is holding on to the additional HiveConf, UDFClassLoaders - potentially HMSHandler.
> This is with an embedded metastore.
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