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https://issues.apache.org/jira/browse/HADOOP-3956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12622782#action_12622782
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amirhyoussefi edited comment on HADOOP-3956 at 8/14/08 7:34 PM:
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More:
- Task initialization problems. As we speak I can see some tasks get stuck in
initialization stage for 2 minutes or so. User can detect it by watching UI for
a few hours but Mr. Doctor can improve on this for live/postmortem logs.
was (Author: amirhyoussefi):
More:
- Task initialization problems. As we speak I can see some tasks get stuck in
initialization stage for 2 minutes or so. User can detect it by watching UI for
a few hours but Mr. Doctor can improve on this for live/portmortem logs.
> map-reduce doctor (Mr Doctor)
> -----------------------------
>
> Key: HADOOP-3956
> URL: https://issues.apache.org/jira/browse/HADOOP-3956
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Amir Youssefi
>
> Problem Description:
> Users typically submit jobs with sub-optimal parameters resulting in
> under-utilization, black-listed task-trackers, time-outs, re-tries etc.
> Issue can be mitigated by submitting job with custom Hadoop parameters.
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