[
https://issues.apache.org/jira/browse/HADOOP-3762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Runping Qi updated HADOOP-3762:
-------------------------------
Attachment: TaskTrackerStackTrace.txt
jstack dump attached.
> Task tracker died due to OOM
> -----------------------------
>
> Key: HADOOP-3762
> URL: https://issues.apache.org/jira/browse/HADOOP-3762
> Project: Hadoop Core
> Issue Type: Bug
> Reporter: Runping Qi
> Priority: Blocker
> Attachments: TaskTrackerStackTrace.txt
>
>
> When running about 100 moderate jobs on a small cluster (with 19 Task
> Trackers),
> the task trackers all died due to OOM.
> I got a chance to dump the jstack strace of a task tracker before it died.
> Its image size was close 4GB!
> I saw 1200+ threads of DFSClient.LeaseChecker.
> Clearly we have a severe resource leakage problem!
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
