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Wangda Tan commented on YARN-6339: ---------------------------------- Thanks [~zhaoyunjiong], For your latest patch, there's only thing I'm not sure: Why changes of {{createAndGetApplicationReport}} required? It will be helpful if you could share more details about this part. Other changes of the patch looks good. > Improve performance for createAndGetApplicationReport > ----------------------------------------------------- > > Key: YARN-6339 > URL: https://issues.apache.org/jira/browse/YARN-6339 > Project: Hadoop YARN > Issue Type: Improvement > Reporter: yunjiong zhao > Assignee: yunjiong zhao > Attachments: YARN-6339.001.patch, YARN-6339.002.patch > > > There are two performance issue when calling createAndGetApplicationReport: > One is inside ProtoUtils.convertFromProtoFormat, replace is too slow for > clusters which have more than 3000 nodes. Use substring is much better: > https://issues.apache.org/jira/browse/YARN-6285?focusedCommentId=15923241&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15923241 > Another one is inside getLogAggregationReportsForApp, if some application's > LogAggregationStatus is TIME_OUT, every time it was called it will create an > HashMap which will produce lots of garbage. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org