[ https://issues.apache.org/jira/browse/MAPREDUCE-229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer resolved MAPREDUCE-229. ---------------------------------------- Resolution: Fixed I'm going to close this as fixed. Clients can ask the JT if they are currently busy. By doing this periodically, they can build an idle time. > Provide a command line option to check if a Hadoop jobtracker is idle > --------------------------------------------------------------------- > > Key: MAPREDUCE-229 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-229 > Project: Hadoop Map/Reduce > Issue Type: New Feature > Reporter: Hemanth Yamijala > > This is an RFE for providing a way to determine from the hadoop command line > whether a jobtracker is idle. One possibility is to have something like > hadoop jobtracker -idle <time>. Hadoop would return true (maybe via some > stdout output) if the jobtracker had no work to do (jobs running / prepared) > since <time> seconds, false otherwise. > This would be useful for management / provisioning systems like > Hadoop-On-Demand [HADOOP-1301], which can then deallocate the idle, > provisioned clusters automatically, and release resources. -- This message was sent by Atlassian JIRA (v6.2#6252)