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Hudson commented on HDFS-4090: ------------------------------ Integrated in Hadoop-trunk-Commit #2911 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/2911/]) HDFS-4090. getFileChecksum() result incompatible when called against zero-byte files. (Kihwal Lee via daryn) (Revision 1401309) Result = SUCCESS daryn : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1401309 Files : * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java > getFileChecksum() result incompatible when called against zero-byte files. > -------------------------------------------------------------------------- > > Key: HDFS-4090 > URL: https://issues.apache.org/jira/browse/HDFS-4090 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs client > Affects Versions: 0.23.4, 2.0.2-alpha > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Priority: Critical > Attachments: hdfs-4090.patch > > > When getFileChecksum() is called against a zero-byte file, the branch-1 > client returns MD5MD5CRC32FileChecksum with crcPerBlock=0, bytePerCrc=0 and > md5=70bc8f4b72a86921468bf8e8441dce51, whereas a null is returned in trunk. > The null makes sense since there is no actual block checksums, but this > breaks the compatibility when doing distCp and calling getFileChecksum() via > webhdfs or hftp. > This JIRA is to make the client to return the same 'magic' value that the > branch-1 and earlier clients return. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira