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Bibin Chundatt commented on YARN-9768: -------------------------------------- [~maniraj...@gmail.com] Thank you for working on this Major comment {code} 215 future = renewerService.submit(new DelegationTokenRenewerRunnable(evt)); 216 future.get(tokenRenewerThreadTimeout, TimeUnit.MILLISECONDS); {code} IIUC the above implementation would cause the multi threaded renewal to single thread since get is going to be a blocking call. > 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, > YARN-9768.003.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. > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org