ContainerLocalizer should request new resources after completing the current one
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Key: MAPREDUCE-3399
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3399
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mrv2, nodemanager
Affects Versions: 0.23.0
Reporter: Siddharth Seth
Currently, the ContainerLocalizer to NM heartbeats to the NM every second. Not
very significant, but this causes a ~4second delay in jobs (job jar, splits,
etc). Instead, it should heartbeat to ask for additional resources to localize
as soon as the previous one is localzied. There's already a TODO in the
ContainerLocalizer for this.
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