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https://issues.apache.org/jira/browse/YARN-4118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14733823#comment-14733823
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Sunil G commented on YARN-4118:
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Hi [~jianhe]
This will be a potential one w.r.t ZK especially for RMApp and RMAppAttemt. If
an error is not notified and RM is not fail-fast, there are chances that RMApp
will be NEW_SAVING. So is it ok to fire a failure event directly to RMApp and
RMAppAttempt if any of its Store/Update/Remove events are failed due to store
exception. Such a direct error handling can mark app and appattempts into error
state rather than keeping in limbo state. I would like to try this if its fine.
Pls share your thoughts.
> Newly submitted app maybe stuck at saving state if store operation failure is
> ignored in ZKRMStateStore
> -------------------------------------------------------------------------------------------------------
>
> Key: YARN-4118
> URL: https://issues.apache.org/jira/browse/YARN-4118
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jian He
> Assignee: Sunil G
>
> In YARN-2019, we took a decision to ignore the failure and not fail the RM
> when ZK is unavailable.
> However, it leaves newly submitted app stuck at saving state.
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