Matthew Jacobs 6c12546561 IMPALA-4833: Compute precise per-host reservation size ...

Before this change, the per-host reservation size was computed
by the Planner. However, scheduling happens after planning,
so the Planner must assume that all fragments run on all
hosts, and the reservation size is likely much larger than
it needs to be.

This moves the computation of the per-host reservation size
to the BE where it can be computed more precisely. This also
includes a number of plan/profile changes.

Change-Id: Idbcd1e9b1be14edc4017b4907e83f9d56059fbac
Reviewed-on: http://gerrit.cloudera.org:8080/7630
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Impala Public Jenkins

2017-08-12 08:10:07 +00:00

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