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Arpit Agarwal commented on HDFS-6004: ------------------------------------- Hi Nicholas, when {{startRollingUpgradeInternal}} returns the rollback image has been saved so should {{rollingUpgradeInfo#createdRollbackImages}} be initialized to true? > Change DFSAdmin for rolling upgrade commands > -------------------------------------------- > > Key: HDFS-6004 > URL: https://issues.apache.org/jira/browse/HDFS-6004 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: hdfs-client > Reporter: Tsz Wo (Nicholas), SZE > Assignee: Tsz Wo (Nicholas), SZE > Attachments: h6004_20140224.patch, h6004_20140224b.patch > > > When rolling upgrade is initiated, a image is created for rollback. We > propose the following changes for the DFSAdmin for rolling upgrade commands: > - change "dfsadmin -rollingUpgrade start" to "dfsadmin -rollingUpgrade > prepare"; > - add information for the rollback image to "dfsadmin -rollingUpgrade query". -- This message was sent by Atlassian JIRA (v6.1.5#6160)