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https://issues.apache.org/jira/browse/YARN-9768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16918819#comment-16918819
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CR Hota commented on YARN-9768:
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[[email protected]] Thanks for the patch.
Few comments
# Where is the user set config getting used? In the change future is always
looking at DEFAULT value
{code:java}
future.get(DEFAULT_RM_DELEGATION_TOKEN_RENEWER_THREAD_TIMEOUT {code}
# Can you add a test to verify the timeout?
# Need to document this in yarn-default.xml
[~elgoiri] [~brahmareddy] FYI ..
> RM Renew Delegation token thread should timeout and retry
> ---------------------------------------------------------
>
> Key: YARN-9768
> URL: https://issues.apache.org/jira/browse/YARN-9768
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: CR Hota
> Priority: Major
> Attachments: YARN-9768.001.patch
>
>
> Delegation token renewer thread in RM (DelegationTokenRenewer.java) renews
> HDFS tokens received to check for validity and expiration time.
> This call is made to an underlying HDFS NN or Router Node (which has exact
> APIs as HDFS NN). If one of the nodes is bad and the renew call is stuck the
> thread remains stuck indefinitely. The thread should ideally timeout the
> renewToken and retry from the client's perspective.
>
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