You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2018/04/09 16:11:00 UTC
[jira] [Assigned] (HADOOP-15372) Race conditions and possible leaks
in the Shell class
[ https://issues.apache.org/jira/browse/HADOOP-15372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jason Lowe reassigned HADOOP-15372:
-----------------------------------
Assignee: Eric Badger
> Race conditions and possible leaks in the Shell class
> -----------------------------------------------------
>
> Key: HADOOP-15372
> URL: https://issues.apache.org/jira/browse/HADOOP-15372
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.10.0, 3.2.0
> Reporter: Miklos Szegedi
> Assignee: Eric Badger
> Priority: Minor
>
> YARN-5641 introduced some cleanup code in the Shell class. It has a race condition. {{Shell.
> runCommand()}} can be called while/after {{Shell.getAllShells()}} returned all the shells to be cleaned up. This new thread can avoid the clean up, so that the process held by it can be leaked causing leaked localized files/etc.
> I see another issue as well. {{Shell.runCommand()}} has a finally block with a {{
> process.destroy();}} to clean up. However, the try catch block does not cover all instructions after the process is started, so for example we can exit the thread and leak the process, if {{
> timeOutTimer.schedule(timeoutTimerTask, timeOutInterval);}} causes an exception.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org