hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Feng Yuan (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-6277) Nodemanager heap memory leak
Date Mon, 06 Mar 2017 03:37:33 GMT

    [ https://issues.apache.org/jira/browse/YARN-6277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15896662#comment-15896662
] 

Feng Yuan edited comment on YARN-6277 at 3/6/17 3:36 AM:
---------------------------------------------------------

Hi [~Naganarasimha],Like this:
In LocalDirAllocator#confChanged will check local-dir configuration if changed.
The LocalDirsHandlerService will timing change this conf because local disk breakdown.
And ShuffleHandler will also use  LocalDirAllocator#confChanged because the AllocatorPerContext
is singleton,
but the conf of shuffleHandler is a clone version,so if the conf changed is nm the sh`s conf
is still old.
So if shuffleHandler invoke LocalDirAllocator#confChanged once nm will create a FileSystem..


was (Author: feng yuan):
Hi [~Naganarasimha],Like this:
In LocalDirAllocator#confChanged will check local-dir configuration if changed.
The RLS will timing change this conf because local disk breakdown.
And ShuffleHandler will also use  LocalDirAllocator#confChanged because the AllocatorPerContext
is singleton,
but the conf of shuffleHandler is a clone version,so if the conf changed is nm the sh`s conf
is still old.
So if shuffleHandler invoke LocalDirAllocator#confChanged once nm will create a FileSystem..

> Nodemanager heap memory leak
> ----------------------------
>
>                 Key: YARN-6277
>                 URL: https://issues.apache.org/jira/browse/YARN-6277
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.3, 2.8.1, 3.0.0-alpha2
>            Reporter: Feng Yuan
>            Assignee: Feng Yuan
>
> Because LocalDirHandlerService@LocalDirAllocator`s mechanism,they will create massive
LocalFileSystem.So lead to heap leak.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org


Mime
View raw message