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Tao Yang commented on YARN-8925: -------------------------------- Thanks [~cheersyang]. Attached v9 patch to change the log level of updating node attributes in NodeAttributesManagerImpl#internalUpdateAttributesOnNodes from DEBUG to INFO. > Updating distributed node attributes only when necessary > -------------------------------------------------------- > > Key: YARN-8925 > URL: https://issues.apache.org/jira/browse/YARN-8925 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Affects Versions: 3.2.1 > Reporter: Tao Yang > Assignee: Tao Yang > Priority: Major > Labels: performance > Attachments: YARN-8925.001.patch, YARN-8925.002.patch, > YARN-8925.003.patch, YARN-8925.004.patch, YARN-8925.005.patch, > YARN-8925.006.patch, YARN-8925.007.patch, YARN-8925.008.patch, > YARN-8925.009.patch > > > Currently if distributed node attributes exist, even though there is no > change, updating for distributed node attributes will happen in every > heartbeat between NM and RM. Updating process will hold > NodeAttributesManagerImpl#writeLock and may have some influence in a large > cluster. We have found nodes UI of a large cluster is opened slowly and most > time it's waiting for the lock in NodeAttributesManagerImpl. I think this > updating should be called only when necessary to enhance the performance of > related process. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org