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https://issues.apache.org/jira/browse/HADOOP-5525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683799#action_12683799
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Amareshwari Sriramadasu commented on HADOOP-5525:
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ThreadStatus could contain thread name, and its state: WAITING, TIMED_WAITING,
RUNNABLE, BLOCKED, TERMINATED.
getClusterStatus() RPC can include required JT thread statuses.
We can provide an option bin/hadoop job -threads to display the thread statuses.
Thoughts?
> Provide a way to query job tracker about its daemon thread's status
> -------------------------------------------------------------------
>
> Key: HADOOP-5525
> URL: https://issues.apache.org/jira/browse/HADOOP-5525
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.21.0
>
>
> Admin needs to know the status of all threads in JobTracker (whether they are
> alive or not) at any point of time. This helps alot in debugging crashes.
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