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Andrew Wang commented on HDFS-5360: ----------------------------------- Thanks, will commit shortly. > Improvement of usage message of renameSnapshot and deleteSnapshot > ----------------------------------------------------------------- > > Key: HDFS-5360 > URL: https://issues.apache.org/jira/browse/HDFS-5360 > Project: Hadoop HDFS > Issue Type: Improvement > Components: snapshots > Affects Versions: 3.0.0 > Reporter: Shinichi Yamashita > Assignee: Shinichi Yamashita > Priority: Minor > Attachments: HDFS-5360.patch, HDFS-5360.patch > > > When the argument of "hdfs dfs -createSnapshot" comamnd is inappropriate, it > is displayed as follows. > {code} > [hadoop@trunk ~]$ hdfs dfs -createSnapshot > -createSnapshot: <snapshotDir> is missing. > Usage: hadoop fs [generic options] -createSnapshot <snapshotDir> > [<snapshotName>] > {code} > On the other hands, the commands of "-renameSnapshot" and "-deleteSnapshot" > is displayed as follows. And there are not kind for the user. > {code} > [hadoop@trunk ~]$ hdfs dfs -renameSnapshot > renameSnapshot: args number not 3: 0 > [hadoop@trunk ~]$ hdfs dfs -deleteSnapshot > deleteSnapshot: args number not 2: 0 > {code} > It changes "-renameSnapshot" and "-deleteSnapshot" to output the message > which is similar to "-createSnapshot". -- This message was sent by Atlassian JIRA (v6.1#6144)