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Posted to yarn-issues@hadoop.apache.org by "Manikandan R (Jira)" <ji...@apache.org> on 2019/09/06 16:13:00 UTC
[jira] [Updated] (YARN-9768) RM Renew Delegation token thread
should timeout and retry
[ https://issues.apache.org/jira/browse/YARN-9768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Manikandan R updated YARN-9768:
-------------------------------
Attachment: YARN-9768.002.patch
> 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, YARN-9768.002.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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