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ASF GitHub Bot logged work on HDFS-16163: ----------------------------------------- Author: ASF GitHub Bot Created on: 12/Aug/21 01:28 Start Date: 12/Aug/21 01:28 Worklog Time Spent: 10m Work Description: ferhui commented on pull request #3296: URL: https://github.com/apache/hadoop/pull/3296#issuecomment-897276018 @virajjasani Thanks for contribution. Is this for performance optimization? Would you share any testing result? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 637209) Time Spent: 20m (was: 10m) > Avoid locking entire blockPinningFailures map > --------------------------------------------- > > Key: HDFS-16163 > URL: https://issues.apache.org/jira/browse/HDFS-16163 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Viraj Jasani > Assignee: Viraj Jasani > Priority: Major > Labels: pull-request-available > Time Spent: 20m > Remaining Estimate: 0h > > In order for mover to exclude pinned blocks in subsequent iteration, we try > to put pinned blocks in a map of blockIds to set of Datanode sources. > However, while updating an entry of this map, we don't need to lock the > entire map. We can use fine-grained concurrency here. -- 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