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https://issues.apache.org/jira/browse/YARN-7622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285423#comment-16285423
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Wilfred Spiegelenburg commented on YARN-7622:
---------------------------------------------
The findbugs message is correct. Not sure why it has not shown up before but
when you look at the field it is used within a synchronised method and outside.
We set {{lastSuccessfulReload}} in {{reloadAllocations()}} which is
synchronised. We also reference it in {{serviceInit}} which is not
synchronised. This is similar to the allocations file for which we have an
exemption in the findbugs list. There has been an attempt to fix these findbugs
warnings in YARN-3181 but that caused issues. I think it is better to add a new
exclusion to findbugs.
> Allow fair-scheduler configuration on HDFS
> ------------------------------------------
>
> Key: YARN-7622
> URL: https://issues.apache.org/jira/browse/YARN-7622
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler, resourcemanager
> Reporter: Greg Phillips
> Assignee: Greg Phillips
> Priority: Minor
> Attachments: YARN-7622.001.patch
>
>
> The FairScheduler requires the allocation file to be hosted on the local
> filesystem on the RM node(s). Allowing HDFS to store the allocation file will
> provide improved redundancy, more options for scheduler updates, and RM
> failover consistency in HA.
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