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https://issues.apache.org/jira/browse/YARN-3449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du resolved YARN-3449.
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Resolution: Invalid
Assignee: (was: Junping Du)
> Recover appTokenKeepAliveMap upon nodemanager restart
> -----------------------------------------------------
>
> Key: YARN-3449
> URL: https://issues.apache.org/jira/browse/YARN-3449
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager
> Affects Versions: 2.6.0, 2.7.0
> Reporter: Junping Du
>
> appTokenKeepAliveMap in NodeStatusUpdaterImpl is used to keep application
> alive after application is finished but NM still need app token to do log
> aggregation (when enable security and log aggregation).
> The applications are only inserted into this map when receiving
> getApplicationsToCleanup() from RM heartbeat response. And RM only send this
> info one time in RMNodeImpl.updateNodeHeartbeatResponseForCleanup(). NM
> restart work preserving should put appTokenKeepAliveMap into NMStateStore and
> get recovered after restart. Without doing this, RM could terminate
> application earlier, so log aggregation could be failed if security is
> enabled.
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