[
https://issues.apache.org/jira/browse/MAPREDUCE-3901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinod Kumar Vavilapalli updated MAPREDUCE-3901:
-----------------------------------------------
Resolution: Fixed
Fix Version/s: 0.23.2
Release Note: Modified JobHistory records in YARN to lazily load job and
task reports so as to improve UI response times.
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
I just committed this to trunk, branch-0.23 and branch-0.23.2. Thanks Sid!
> lazy load JobHistory Task and TaskAttempt details
> -------------------------------------------------
>
> Key: MAPREDUCE-3901
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3901
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobhistoryserver, mrv2
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Fix For: 0.23.2
>
> Attachments: MR3901.txt, MR3901_v2.txt, MR3901_v3.txt
>
>
> The job history UI and MRClientProtocol calls routed via JobHistory are very
> slow for large jobs. Some of this time is spent parsing the history file. A
> good chunk is spent pre-creating lots of objects which may never be used.
> Those can be create when required - bringing down the load times of job
> history pages and getJobReport etc calls to approximately the history file
> parse time.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
