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Wangda Tan commented on YARN-4024: ---------------------------------- [~zhiguohong], I noticed YARN-4001 after filed YARN-4024, since we have some discussions on YARN-4024 already. I suggest to close YARN-4001 and feel free to assign this one to you. > YARN RM should avoid unnecessary resolving IP when NMs doing heartbeat > ---------------------------------------------------------------------- > > Key: YARN-4024 > URL: https://issues.apache.org/jira/browse/YARN-4024 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Wangda Tan > > Currently, YARN RM NodesListManager will resolve IP address every time when > node doing heartbeat. When DNS server becomes slow, NM heartbeat will be > blocked and cannot make progress. -- This message was sent by Atlassian JIRA (v6.3.4#6332)