[
https://issues.apache.org/jira/browse/HADOOP-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613294#action_12613294
]
Vinod Kumar Vavilapalli commented on HADOOP-3581:
-------------------------------------------------
[Update]
- Just verified that cygwin supports proc file system exactly as on linux, so
the same code should work there too.
- Also tested process-groups and signal handling to process-groups on cygwin,
works exactly as expected. Given that process-groups are supported there too,
and thus is fairly portable(assuming it works right away on Solaris and Mac),
we could think of moving task creation to be done via job-control.
> Prevent memory intensive user tasks from taking down nodes
> ----------------------------------------------------------
>
> Key: HADOOP-3581
> URL: https://issues.apache.org/jira/browse/HADOOP-3581
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Hemanth Yamijala
> Assignee: Vinod Kumar Vavilapalli
> Attachments: patch_3581_0.1.txt
>
>
> Sometimes user Map/Reduce applications can get extremely memory intensive,
> maybe due to some inadvertent bugs in the user code, or the amount of data
> processed. When this happens, the user tasks start to interfere with the
> proper execution of other processes on the node, including other Hadoop
> daemons like the DataNode and TaskTracker. Thus, the node would become
> unusable for any Hadoop tasks. There should be a way to prevent such tasks
> from bringing down the node.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
