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https://issues.apache.org/jira/browse/MAPREDUCE-5608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617001#comment-17617001
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ASF GitHub Bot commented on MAPREDUCE-5608:
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ashutoshcipher opened a new pull request, #5014:
URL: https://github.com/apache/hadoop/pull/5014
### Description of PR
Replace and deprecate mapred.tasktracker.indexcache.mb
In MR2 mapred.tasktracker.indexcache.mb still works for configuring the size
of the shuffle service index cache. As the tasktracker no longer exists, we
should replace this with something like mapreduce.reduce.shuffle.indexcache.mb.
### How was this patch tested?
UT
### For code changes:
- [X] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
> Replace and deprecate mapred.tasktracker.indexcache.mb
> ------------------------------------------------------
>
> Key: MAPREDUCE-5608
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5608
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.2.0
> Reporter: Sandy Ryza
> Assignee: Ashutosh Gupta
> Priority: Major
> Labels: BB2015-05-TBR, configuration, newbie
> Attachments: MAPREDUCE-5608-002.patch, MAPREDUCE-5608.003.patch,
> MAPREDUCE-5608.patch
>
>
> In MR2 mapred.tasktracker.indexcache.mb still works for configuring the size
> of the shuffle service index cache. As the tasktracker no longer exists, we
> should replace this with something like mapreduce.shuffle.indexcache.mb.
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