[HADOOP-8214] make hadoop script recognize a full set of deprecated commands

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.1
• Fix Version/s: 2.0.0-alpha, 0.23.7
• Component/s: scripts
• Hadoop Flags: Reviewed
• Assignee: Roman Shaposhnik
• Reporter: Roman Shaposhnik
• Created: 26/Mar/12 17:30
• Updated: 02/Feb/13 12:40
• Resolved: 02/May/12 22:45

Description

bin/hadoop launcher script does a nice job of recognizing deprecated usage and vectoring users towards the proper command line tools (hdfs, mapred). It would be nice if we can take care of the following deprecated commands that don't get the same special treatment:

  oiv                  apply the offline fsimage viewer to an fsimage
  dfsgroups            get the groups which users belong to on the Name Node
  mrgroups             get the groups which users belong to on the Job Tracker
  mradmin              run a Map-Reduce admin client
  jobtracker           run the MapReduce job Tracker node
  tasktracker          run a MapReduce task Tracker node

Here's what I propos to do with them:

1. oiv – issue DEPRECATED warning and run hdfs oiv
2. dfsgroups – issue DEPRECATED warning and run hdfs groups
3. mrgroups – issue DEPRECATED warning and run mapred groups
4. mradmin – issue DEPRECATED warning and run yarn rmadmin
5. jobtracker – issue DEPRECATED warning and do nothing
6. tasktracker-- issue DEPRECATED warning and do nothing

Thoughts?