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https://issues.apache.org/jira/browse/YARN-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16626565#comment-16626565
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Eric Yang commented on YARN-8734:
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[~billie.rinaldi] Good catch on the relationship between liveness monitor and
AM startup. It makes sense to do the dependency check after AM registered with
RM to ensure the dependency wait doesn't get expired by RM in case the high
level coordinator submit applications and expect the jobs to queue and sort out
the dependencies automatically. I'll revise the patch accordingly if you agree.
> Readiness check for remote service belongs to the same user
> -----------------------------------------------------------
>
> Key: YARN-8734
> URL: https://issues.apache.org/jira/browse/YARN-8734
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: yarn-native-services
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Major
> Attachments: Dependency check vs.pdf, YARN-8734.001.patch,
> YARN-8734.002.patch, YARN-8734.003.patch, YARN-8734.004.patch,
> YARN-8734.005.patch
>
>
> When a service is deploying, there can be remote service dependency. It
> would be nice to describe ZooKeeper as a dependent service, and the service
> has reached a stable state, then deploy HBase.
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