JobClient CLI cleanup and improvement
-------------------------------------
Key: HADOOP-1767
URL: https://issues.apache.org/jira/browse/HADOOP-1767
Project: Hadoop
Issue Type: Improvement
Components: mapred
Reporter: Christophe Taton
Assignee: Christophe Taton
Priority: Minor
Fix For: 0.15.0
Only modifies mapred.JobClient:
- adds a {{-list}} command: {{hadoop job -list}}, to list currently running
jobs from the CLI.
- moves and update the usage message (outdated) into a separate method
-- {{-kill}} does not accept anything else but {{<job-id>}}
-- {{-event}} takes 3 parameters
- simplified and corrected the arguments processing (unused {{for}} loop,
accurate checks)
- {{-events}} did not work
- {{JobClient.close()}} is empty; should it be removed?
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