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https://issues.apache.org/jira/browse/YARN-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14236207#comment-14236207
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Ray Chiang commented on YARN-2927:
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One more thing, once this fix is in, I can re-submit YARN-2284 which is how I
found the problem.
> YARN InMemorySCMStore properties need fixing
> --------------------------------------------
>
> Key: YARN-2927
> URL: https://issues.apache.org/jira/browse/YARN-2927
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Ray Chiang
> Assignee: Ray Chiang
> Labels: newbie, supportability
> Attachments: YARN-2927.001.patch
>
>
> I see these properties in the yarn-default.xml file:
> yarn.sharedcache.store.in-memory.check-period-mins
> yarn.sharedcache.store.in-memory.initial-delay-mins
> yarn.sharedcache.store.in-memory.staleness-period-mins
> YarnConfiguration looks like it's missing some properties:
> public static final String SHARED_CACHE_PREFIX = "yarn.sharedcache.";
> public static final String SCM_STORE_PREFIX = SHARED_CACHE_PREFIX +
> "store.";
> public static final String IN_MEMORY_STORE_PREFIX = SHARED_CACHE_PREFIX +
> "in-memory.";
> public static final String IN_MEMORY_STALENESS_PERIOD_MINS =
> IN_MEMORY_STORE_PREFIX + "staleness-period-mins";
> It looks like the definition for IN_MEMORY_STORE_PREFIX should be:
> public static final String IN_MEMORY_STORE_PREFIX = SCM_STORE_PREFIX +
> "in-memory.";
> Just to be clear, there are properties that exist in yarn-default.xml that
> are effectively misspelled in the *Java* file, not the .xml file. This is
> similar to YARN-2461 and MAPREDUCE-6087.
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