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ASF GitHub Bot logged work on BEAM-5036: ---------------------------------------- Author: ASF GitHub Bot Created on: 03/Oct/18 03:00 Start Date: 03/Oct/18 03:00 Worklog Time Spent: 10m Work Description: chamikaramj commented on a change in pull request #6289: [BEAM-5036] Optimize the FileBasedSink WriteOperation.moveToOutput() URL: https://github.com/apache/beam/pull/6289#discussion_r222169404 ########## File path: sdks/java/core/src/test/java/org/apache/beam/sdk/io/FileSystemsTest.java ########## @@ -186,6 +189,56 @@ public void testRenameIgnoreMissingFiles() throws Exception { containsInAnyOrder("content3")); } + @Test + public void testRenameOverwriteExistingFilesThrows() throws Exception { + // Simulate a filesystem which will not overwrite existing files + FileSystem<LocalResourceId> fs = new LocalFileSystem(new CopyOption[0]); + thrown.expect(FileAlreadyExistsException.class); + executeRename(fs, false); + } + + @Test + public void testRenameOverwriteExistingFiles() throws Exception { + // Simulate a filesystem which will not overwrite existing files Review comment: Why do we want tests to be different from production ? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on 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: 150592) Time Spent: 8h (was: 7h 50m) > Optimize FileBasedSink's WriteOperation.moveToOutput() > ------------------------------------------------------ > > Key: BEAM-5036 > URL: https://issues.apache.org/jira/browse/BEAM-5036 > Project: Beam > Issue Type: Improvement > Components: io-java-files > Affects Versions: 2.5.0 > Reporter: Jozef Vilcek > Assignee: Tim Robertson > Priority: Major > Time Spent: 8h > Remaining Estimate: 0h > > moveToOutput() methods in FileBasedSink.WriteOperation implements move by > copy+delete. It would be better to use a rename() which can be much more > effective for some filesystems. > Filesystem must support cross-directory rename. BEAM-4861 is related to this > for the case of HDFS filesystem. > Feature was discussed here: > http://mail-archives.apache.org/mod_mbox/beam-dev/201807.mbox/%3CCAF9t7_4Mp54pQ+vRrJrBh9Vx0=uaknupzd_qdh_qdm9vxll...@mail.gmail.com%3E -- This message was sent by Atlassian JIRA (v7.6.3#76005)