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ASF GitHub Bot logged work on HADOOP-17611: ------------------------------------------- Author: ASF GitHub Bot Created on: 11/Apr/21 17:50 Start Date: 11/Apr/21 17:50 Worklog Time Spent: 10m Work Description: virajjasani opened a new pull request #2892: URL: https://github.com/apache/hadoop/pull/2892 -- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 580707) Remaining Estimate: 0h Time Spent: 10m > Distcp parallel file copy breaks the modification time > ------------------------------------------------------ > > Key: HADOOP-17611 > URL: https://issues.apache.org/jira/browse/HADOOP-17611 > Project: Hadoop Common > Issue Type: Bug > Reporter: Adam Maroti > Assignee: Viraj Jasani > Priority: Major > Time Spent: 10m > Remaining Estimate: 0h > > The commit HADOOP-11794. Enable distcp to copy blocks in parallel. > (bf3fb585aaf2b179836e139c041fc87920a3c886) broke the modification time of > large files. > > In CopyCommitter.java inside concatFileChunks Filesystem.concat is called > which changes the modification time therefore the modification times of files > copeid by distcp will not match the source files. However this only occurs > for large enough files, which are copied by splitting them up by distcp. > In concatFileChunks before calling concat extract the modification time and > apply that to the concatenated result-file after the concat. (probably best > -after- before the rename()). -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org