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https://issues.apache.org/jira/browse/YARN-10841?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Minni Mittal updated YARN-10841:
--------------------------------
Description:
*2021-06-24T10:11:39,465* [ERROR] [AMRM Heartbeater thread]
|impl.AMRMClientAsyncImpl|: Exception on heartbeat
org.apache.hadoop.yarn.exceptions.YarnException:
org.apache.hadoop.yarn.exceptions.YarnRuntimeException: amrmToken from UAM
cluster-0 should be null here
at
org.apache.hadoop.yarn.server.nodemanager.amrmproxy.FederationInterceptor.allocate(FederationInterceptor.java:782)
*2021-06-24T10:10:12,608* INFO [616916] FederationInterceptor: Received new
UAM amrmToken with keyId 843616604
Hearbeatcallback sets token to null. But because of synchroniztion issue, it
happened after mergeAllocate is called. So, while allocate merge is happening
the value should get set to null and should have happened Inside lock
> Fix token reset synchronization by making sure for UAM response token reset
> is done while in lock.
> ---------------------------------------------------------------------------------------------------
>
> Key: YARN-10841
> URL: https://issues.apache.org/jira/browse/YARN-10841
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Minni Mittal
> Assignee: Minni Mittal
> Priority: Minor
>
> *2021-06-24T10:11:39,465* [ERROR] [AMRM Heartbeater thread]
> |impl.AMRMClientAsyncImpl|: Exception on heartbeat
> org.apache.hadoop.yarn.exceptions.YarnException:
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException: amrmToken from UAM
> cluster-0 should be null here
> at
> org.apache.hadoop.yarn.server.nodemanager.amrmproxy.FederationInterceptor.allocate(FederationInterceptor.java:782)
>
>
> *2021-06-24T10:10:12,608* INFO [616916] FederationInterceptor: Received new
> UAM amrmToken with keyId 843616604
> Hearbeatcallback sets token to null. But because of synchroniztion issue, it
> happened after mergeAllocate is called. So, while allocate merge is happening
> the value should get set to null and should have happened Inside lock
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