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https://issues.apache.org/jira/browse/HIVE-20979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701517#comment-16701517
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ASF GitHub Bot commented on HIVE-20979:
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GitHub user ShubhamChaurasia opened a pull request:
https://github.com/apache/hive/pull/495
HIVE-20979: Fix memory leak in hive streaming
Fixes two memory leaks.
-In HiveStreamingConnection due to Shutdown hook not being removed.
-In AbstractRecordWriter due to FileSystem not being closed.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ShubhamChaurasia/hive HIVE-20979
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hive/pull/495.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #495
----
commit a6985008713ee731182db774626f0b75277b6172
Author: ShubhamChaurasia <shubh.chaurasia@...>
Date: 2018-11-28T08:19:16Z
HIVE-20979: Fix memory leak in hive streaming
----
> Fix memory leak in hive streaming
> ---------------------------------
>
> Key: HIVE-20979
> URL: https://issues.apache.org/jira/browse/HIVE-20979
> Project: Hive
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 3.1.1
> Reporter: Shubham Chaurasia
> Assignee: Shubham Chaurasia
> Priority: Critical
> Labels: pull-request-available
>
> {{1) HiveStreamingConnection.Builder#init() adds a shutdown hook handler via
> }}{{ShutdownHookManager.addShutdownHook but it is never removed which causes
> all the handlers to accumulate and hence a memory leak.}}
> 2) AbstractRecordWriter creates an instance of FileSystem but does not close
> it which in turn causes a leak due to accumulation in FileSystem$Cache#map
>
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