https://community.cloudera.com/t5/Support-Questions/How-to-stop-a-job/m-p/13304#M43717 <P>Is there a way (command), to stop for some time or kill whole job, inside mapper code written in Java?</P> Fri, 06 Jun 2014 15:25:39 GMT maclarenx 2014-06-06T15:25:39Z https://community.cloudera.com/t5/Support-Questions/How-to-stop-a-job/m-p/13304#M43717 <P>Is there a way (command), to stop for some time or kill whole job, inside mapper code written in Java?</P> Fri, 06 Jun 2014 15:25:39 GMT https://community.cloudera.com/t5/Support-Questions/How-to-stop-a-job/m-p/13304#M43717 maclarenx 2014-06-06T15:25:39Z https://community.cloudera.com/t5/Support-Questions/How-to-stop-a-job/m-p/13308#M43718 Stopping a job may not be easily controllable, unless perhaps you are running the job in a FairScheduler pool and you deallocate all resources out of that pool (the config change can be done in dynamic fashion). This would also stop all other jobs in that pool, however.<BR /><BR />Killing a job from within a Map Task is possible, if only in insecure environments. You can use the JobClient API and call its killJob method. Since this call relies on authentication, it may not work right out in a kerberos secured runtime cluster. Fri, 06 Jun 2014 18:26:52 GMT https://community.cloudera.com/t5/Support-Questions/How-to-stop-a-job/m-p/13308#M43718 Harsh J 2014-06-06T18:26:52Z