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https://issues.apache.org/jira/browse/YARN-5783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15634830#comment-15634830
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Karthik Kambatla commented on YARN-5783:
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bq. In SchedulerApplicationAttempt.hashCode(), what is the value of adding the
prime * positive?
Honestly, not sure. This [stackoverflow
link|http://stackoverflow.com/questions/113511/best-implementation-for-hashcode-method]
suggested it, and all auto-generated protobuf files seem to adopt that
approach too.
Addressing the other two comments in the next patch.
> Verify applications are identified starved
> ------------------------------------------
>
> Key: YARN-5783
> URL: https://issues.apache.org/jira/browse/YARN-5783
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Affects Versions: 2.8.0
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Labels: oct16-medium
> Attachments: yarn-5783.YARN-4752.1.patch,
> yarn-5783.YARN-4752.2.patch, yarn-5783.YARN-4752.3.patch,
> yarn-5783.YARN-4752.4.patch, yarn-5783.YARN-4752.5.patch
>
>
> JIRA to track unit tests to verify the identification of starved
> applications. An application should be marked starved only when:
> # Cluster allocation is over the configured threshold for preemption.
> # Preemption is enabled for a queue and any of the following:
> ## The queue is under its minshare for longer than minsharePreemptionTimeout
> ## One of the queue’s applications is under its fairshare for longer than
> fairsharePreemptionTimeout.
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