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Suresh Srinivas commented on HDFS-1842: --------------------------------------- OK I will go with (2) then. > Cannot upgrade 0.20.203 to 0.21 with an editslog present > -------------------------------------------------------- > > Key: HDFS-1842 > URL: https://issues.apache.org/jira/browse/HDFS-1842 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: name-node > Affects Versions: 0.20.203.0 > Reporter: Allen Wittenauer > Priority: Blocker > Attachments: HDFS-1842.rel203.patch, HDFS-1842.rel204.patch > > > If a user installs 0.20.203 and then upgrades to 0.21 with an editslog > present, 0.21 will corrupt the file system due to opcode re-usage. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira