Ability for JobTracker to drain running jobs before a shutdown
--------------------------------------------------------------
Key: HADOOP-4038
URL: https://issues.apache.org/jira/browse/HADOOP-4038
Project: Hadoop Core
Issue Type: Improvement
Components: mapred
Reporter: dhruba borthakur
It would be nice to have operating controls on the JobTracker that lets new
jobs to get rejected while continuing to process existing jobs. This is handy
while shutting down the JobTracker.
Similarly, while restarting the JobTracker, it woudl be nice if it can go into
this state where it refuses to accept new jobs. It allows the system
administrator to ensure that all relevant TaskTrackers have joined the cluster
before the cluster is opened for general use.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
