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zhuqi commented on HDFS-15180: ------------------------------ Hi [~sodonnell] Yeah, your comment is just my mean. If we need add the top lock time information to the datanode metrics , so that may help to make the future performance improvement decision. > DataNode FsDatasetImpl Fine-Grained Locking via BlockPool. > ----------------------------------------------------------- > > Key: HDFS-15180 > URL: https://issues.apache.org/jira/browse/HDFS-15180 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Affects Versions: 3.2.0 > Reporter: zhuqi > Assignee: zhuqi > Priority: Major > Attachments: image-2020-03-10-17-22-57-391.png, > image-2020-03-10-17-31-58-830.png, image-2020-03-10-17-34-26-368.png > > > Now the FsDatasetImpl datasetLock is heavy, when their are many namespaces in > big cluster. If we can split the FsDatasetImpl datasetLock via blockpool. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org