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Vinod K V commented on MAPREDUCE-2089: -------------------------------------- A related point I noted is that the Child task needs the token file irrespective of whether security is turned on or off. This can be skipped for no-security, can we do that here too? > JobToken should be passed over RPC > ---------------------------------- > > Key: MAPREDUCE-2089 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2089 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: client, job submission, jobtracker, security, task, > tasktracker > Reporter: Devaraj Das > Assignee: Devaraj Das > Fix For: 0.22.0 > > Attachments: mr-2089.patch, mr-2089.patch > > > JobToken file is currently created by the JobTracker, and stored in the HDFS. > Later on, the TaskTrackers pull that file from the HDFS as part of job > localization. The HDFS operations can be avoided if the the jobToken file is > passed over RPC (Jobclient -> JobTracker -> TaskTrackers). -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.