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Naganarasimha G R commented on MAPREDUCE-6749: ---------------------------------------------- Thanks [~devaraj.k] for the document and raising these jira's, it has been always discussing but no progress on this topic lets try to make some progress for this feature here . Few queries: # Is it required to have number of total Maps(/reducers) to be run using container reuse? i felt we can just keep whether to reuse the containers are not and one assumption that map containers will be reused only for map and reduce only for reduce # did not understand the need of *RMContainerReuseRequestor.java*, may be i will go through MAPREDUCE-6773 but was expecting more like just TaskAttemptIimpl gets TA_DONE event was expecting it do have a new ReuseContainerTransition where in if required it will reassign a new task to it else will continue to *CLEANUP_CONTAINER_TRANSITION*. may be we can discuss more on this in MAPREDUCE-6773 ? # If we have some conclusion on issue 2, then we can think of whether only *TaskAttemptImpl* state is sufficient or we need to modify others too. # *Logs generated by the tasks in a container will be appended in the same container log file* we need to ensure we are able to display trhough JHS and other places where ever required to display > MR AM should reuse containers for Map/Reduce Tasks > -------------------------------------------------- > > Key: MAPREDUCE-6749 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6749 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: applicationmaster, mrv2 > Reporter: Devaraj K > Assignee: Devaraj K > Attachments: MAPREDUCE-6749-Container Reuse-v0.pdf > > > It is with the continuation of MAPREDUCE-3902, MR AM should reuse containers > for Map/Reduce Tasks similar to the JVM Reuse feature we had in MRv1. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org