[MAPREDUCE-208] Provide an admin page displaying events in the cluster along with cluster status/health

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Assignee: Unassigned
• Reporter: Amar Kamat
• Created: 18/Mar/09 11:29
• Updated: 21/Jul/14 22:04
• Resolved: 21/Jul/14 22:04

Description

Here are few things that will help admins understand whats happening in the cluster

1. Events updates
   1. recently added tracker
   2. lost trackers
   3. recently submitted jobs
   4. user updates
   5. killed/failed attempts/tasks
   6. killed jobs and the reason
   7. recent exceptions like oom etc
   8. expired tasks
   9. recovery manager updates
   10. memory/cpu usage
   11. black listing of tracker
   12. killing of maps based on fetch failures
   13. info about why some jobs was rejected(acls, max tasks)/failed(failures)/killed (user)
   14. etc
2. Status :
   1. tracker health and status
   2. User status
      1. num jobs submitted
      2. total time the cluster was used
      3. success/failed/killed history
   3. job status
      1. task completion events
      2. recently scheduled tasks
      3. progress
      4. killed/failed/success history
   4. space on the box where the jt is running
   5. etc
3. Config :
   1. slot info
   2. acl info
   3. etc

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Graphical views and auto updation would be cool. Raising alarms upon certain events would be super cool.

Issue Links

• relates to: MAPREDUCE-1027 jobtracker.jsp can have an html text block for announcements by admins.