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https://issues.apache.org/jira/browse/YARN-5106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989655#comment-16989655
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Wilfred Spiegelenburg commented on YARN-5106:
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I did not look at back porting it to any earlier release than trunk. It is a
major change however it did not change anything in the configuration of the
scheduler. The XML is still exactly the same as it was before the change.
The way we load it has changed but the XML itself is the same. So for the
builder: it writes out the configuration to a file and then calls the loader.
This is more likely where things stumble because the new loader takes the
{{scheduler}} as a parameter while the old one did not.
That should be the only point the two jiras should interact.
> Provide a builder interface for FairScheduler allocations for use in tests
> --------------------------------------------------------------------------
>
> Key: YARN-5106
> URL: https://issues.apache.org/jira/browse/YARN-5106
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Affects Versions: 2.8.0
> Reporter: Karthik Kambatla
> Assignee: Adam Antal
> Priority: Major
> Labels: newbie++
> Fix For: 3.3.0
>
> Attachments: YARN-5106-branch-3.1.001.patch,
> YARN-5106-branch-3.1.001.patch, YARN-5106-branch-3.1.001.patch,
> YARN-5106-branch-3.1.002.patch, YARN-5106-branch-3.2.001.patch,
> YARN-5106-branch-3.2.001.patch, YARN-5106-branch-3.2.002.patch,
> YARN-5106.001.patch, YARN-5106.002.patch, YARN-5106.003.patch,
> YARN-5106.004.patch, YARN-5106.005.patch, YARN-5106.006.patch,
> YARN-5106.007.patch, YARN-5106.008.patch, YARN-5106.008.patch,
> YARN-5106.008.patch, YARN-5106.009.patch, YARN-5106.010.patch,
> YARN-5106.011.patch, YARN-5106.012.patch, YARN-5106.013.patch,
> YARN-5106.014.patch, YARN-5106.015.patch, YARN-5106.016.patch
>
>
> Most, if not all, fair scheduler tests create an allocations XML file. Having
> a helper class that potentially uses a builder would make the tests cleaner.
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