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Posted to yarn-issues@hadoop.apache.org by "Giovanni Matteo Fumarola (JIRA)" <ji...@apache.org> on 2018/08/20 19:13:00 UTC

[jira] [Commented] (YARN-8581) [AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy

    [ https://issues.apache.org/jira/browse/YARN-8581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16586384#comment-16586384 ] 

Giovanni Matteo Fumarola commented on YARN-8581:
------------------------------------------------

LGTM +1.

Do you mind rebase?

Hunk #3 FAILED at 145.
1 out of 3 hunks FAILED -- saving rejects to file hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/server/federation/utils/FederationPoliciesTestUtil.java.rej

> [AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy
> -----------------------------------------------------------------------
>
>                 Key: YARN-8581
>                 URL: https://issues.apache.org/jira/browse/YARN-8581
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: amrmproxy, federation
>            Reporter: Botong Huang
>            Assignee: Botong Huang
>            Priority: Major
>         Attachments: YARN-8581.v1.patch
>
>
> In Federation, every time an AM heartbeat comes in, LocalityMulticastAMRMProxyPolicy in AMRMProxy splits the asks according to the list of active and enabled sub-clusters. However, if we haven't been able to heartbeat to a sub-cluster for some time (network issues, or we keep hitting some exception from YarnRM, or YarnRM master-slave switch is taking a long time etc.), we should consider the sub-cluster as unhealthy and stop routing asks there, until the heartbeat channel becomes healthy again. 



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