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https://issues.apache.org/jira/browse/HADOOP-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12661537#action_12661537
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Sharad Agarwal commented on HADOOP-4906:
----------------------------------------
Being little clear on my last comment. The code could look like this in
TaskTracker.java:
{code}
private void localizeJob(TaskInProgress tip) throws IOException {
.......
.......
synchronized (rjob) {
if (!rjob.localized) {
........
........
//keep a reference to JobConf in RunningJob
rjob.localized = true;
rjob.jobConf = localJobConf;
}
}
//create the task level JobConf
launchTaskForJob(tip, new JobConf(rjob.jobConf));
}
{code}
> TaskTracker running out of memory after running several tasks
> -------------------------------------------------------------
>
> Key: HADOOP-4906
> URL: https://issues.apache.org/jira/browse/HADOOP-4906
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.19.0
> Reporter: Arun C Murthy
> Assignee: Sharad Agarwal
> Priority: Blocker
> Fix For: 0.20.0
>
> Attachments: 4906_v1.patch, 4906_v2.patch, 4906_v3.patch
>
>
> Looks like the TaskTracker isn't cleaning up correctly after completed/failed
> tasks, I suspect that the JobConfs aren't being deallocated. Eventually the
> TaskTracker runs out of memory after running several tasks.
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