Tim Armstrong created IMPALA-9020:
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Summary: Move scan range queues to fragment-level and do dynamic
scheduling within a node
Key: IMPALA-9020
URL: https://issues.apache.org/jira/browse/IMPALA-9020
Project: IMPALA
Issue Type: Sub-task
Components: Backend
Reporter: Tim Armstrong
It would be nice to dynamically load balance scans between finstances on a
node. There's no particular reason why we can't do that - the code is already
set up, in HDFS, to pull scan ranges out of a queue.
I think this will be simpler to do once we don't have to support the "old"
multithreaded scans, so I'm including this in later cleanup.
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