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Arpit Agarwal commented on HDFS-10742: -------------------------------------- +1 for the v017 patch. > Measurement of lock held time in FsDatasetImpl > ---------------------------------------------- > > Key: HDFS-10742 > URL: https://issues.apache.org/jira/browse/HDFS-10742 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Affects Versions: 3.0.0-alpha2 > Reporter: Chen Liang > Assignee: Chen Liang > Attachments: HDFS-10742.001.patch, HDFS-10742.002.patch, > HDFS-10742.003.patch, HDFS-10742.004.patch, HDFS-10742.005.patch, > HDFS-10742.006.patch, HDFS-10742.007.patch, HDFS-10742.008.patch, > HDFS-10742.009.patch, HDFS-10742.010.patch, HDFS-10742.011.patch, > HDFS-10742.012.patch, HDFS-10742.013.patch, HDFS-10742.014.patch, > HDFS-10742.015.patch, HDFS-10742.016.patch, HDFS-10742.017.patch > > > This JIRA proposes to measure the time the of lock of {{FsDatasetImpl}} is > held by a thread. Doing so will allow us to measure lock statistics. > This can be done by extending the {{AutoCloseableLock}} lock object in > {{FsDatasetImpl}}. In the future we can also consider replacing the lock with > a read-write lock. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org