[ https://issues.apache.org/jira/browse/HDFS-4090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kihwal Lee reassigned HDFS-4090: -------------------------------- Assignee: Kihwal Lee > 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 > > 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