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ASF GitHub Bot commented on HDFS-16882: --------------------------------------- hfutatzhanghb commented on PR #5276: URL: https://github.com/apache/hadoop/pull/5276#issuecomment-1372165277 Hi, @goiri @ayushtkn @ZanderXu . could you please help me review the code? thanks a lot. > RBF: Add cache hit rate metric in MountTableResolver#getDestinationForPath > -------------------------------------------------------------------------- > > Key: HDFS-16882 > URL: https://issues.apache.org/jira/browse/HDFS-16882 > Project: Hadoop HDFS > Issue Type: Improvement > Components: rbf > Affects Versions: 3.3.4 > Reporter: ZhangHB > Priority: Minor > Labels: pull-request-available > Attachments: locationCache.png > > > Currently, the default value of > "dfs.federation.router.mount-table.cache.enable" is true and the default > value of "dfs.federation.router.mount-table.max-cache-size" is 10000. > But there is no metric that display cache hit rate, I think we can add a hit > rate metric to watch the Cache performance and better tuning the parameters. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org