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Remus Rusanu commented on MAPREDUCE-5196: ----------------------------------------- Thanks [~curino]. I will open an issue and upload a patch shortly. > CheckpointAMPreemptionPolicy implements preemption in MR AM via checkpointing > ------------------------------------------------------------------------------ > > Key: MAPREDUCE-5196 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-5196 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: mr-am, mrv2 > Reporter: Carlo Curino > Assignee: Carlo Curino > Fix For: 3.0.0 > > Attachments: MAPREDUCE-5196.1.patch, MAPREDUCE-5196.2.patch, > MAPREDUCE-5196.3.patch, MAPREDUCE-5196.patch, MAPREDUCE-5196.patch > > > This JIRA tracks a checkpoint-based AM preemption policy. The policy handles > propagation of the preemption requests received from the RM to the > appropriate tasks, and bookeeping of checkpoints. Actual checkpointing of the > task state is handled in upcoming JIRAs. -- This message was sent by Atlassian JIRA (v6.2#6252)