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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6796) Remove unused properties from JTConfig.java
Date Wed, 02 Nov 2016 04:57:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15627732#comment-15627732
] 

Akira Ajisaka commented on MAPREDUCE-6796:
------------------------------------------

Looks good to me. I'm thinking we can remove the following properties
* mapreduce.jobtracker.http.address
* mapreduce.jobtracker.handler.count
* mapreduce.jobtracker.restart.recover
* mapreduce.jobtracker.taskscheduler
* mapreduce.jobtracker.instrumentation
* mapreduce.jobtracker.maxtasks.perjob
* mapreduce.jobtracker.heartbeats.in.second
* mapreduce.jobtracker.persist.jobstatus.hours
* mapreduce.jobtracker.persist.jobstatus.dir
* mapreduce.jobtracker.retirejobs
* mapreduce.jobtracker.retiredjobs.cache.size
* mapreduce.jobtracker.taskscheduler.taskalloc.capacitypad
* mapreduce.jobtracker.jobinit.threads
* mapreduce.jobtracker.expire.trackers.interval
* mapreduce.jobtracker.taskscheduler.maxrunningtasks.perjob
* mapreduce.jobtracker.hosts.filename
* mapreduce.jobtracker.hosts.exclude.filename
* mapreduce.jobtracker.jobhistory.lru.cache.size
* mapreduce.jobtracker.jobhistory.block.size
* mapreduce.jobtracker.jobhistory.completed.location
* mapreduce.jobtracker.jobhistory.location
* mapreduce.jobtracker.blacklist.average.threshold
* mapreduce.jobtracker.tasktracker.maxblacklists
* mapreduce.jobtracker.split.metainfo.maxsize
* mapreduce.jobtracker.webinterface.trusted

because these parameters are used only in ConfigUtil.java. What do you think?

> Remove unused properties from JTConfig.java
> -------------------------------------------
>
>                 Key: MAPREDUCE-6796
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6796
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Akira Ajisaka
>            Assignee: Haibo Chen
>         Attachments: mapreduce6796.001.patch
>
>
> JobTracker-side of MAPREDUCE-6794.
> There are many unused properties in JTConfig.java. Let's remove them.



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