Hello Bikramjeet Vig, Impala Public Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/15545
to look at the new patch set (#3).
Change subject: IMPALA-9099: allow mt_dop for joins without feature flag
......................................................................
IMPALA-9099: allow mt_dop for joins without feature flag
This allows running *any* read-only query with mt_dop > 0.
Before this patch, no joins were allowed with mt_dop > 0.
Previous patches, particularly IMPALA-9156, added significantly
more code coverage for multithreading+joins. It should be safe to
allow enabling on a query-by-query basis. Many improvements are
still planned - see IMPALA-3902. So behaviour and performance
characteristics of mt_dop > 0 with more complex plans and joins
will continue to change.
Testing:
Updated the mt_dop validation tests and remove redundant planner test
that doesn't provide much additional coverage of the validation
support.
Ran exhaustive tests.
Change-Id: I9c6566abb239db0e775f2beaa25a62c36313cd6f
---
M bin/run-all-tests.sh
M fe/src/main/java/org/apache/impala/planner/Planner.java
M fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java
M fe/src/test/java/org/apache/impala/planner/PlannerTest.java
D
testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation-hdfs-num-rows-est-enabled.test
M
testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation.test
M
testdata/workloads/functional-query/queries/QueryTest/mt-dop-auto-fallback.test
M tests/custom_cluster/test_mt_dop.py
8 files changed, 179 insertions(+), 369 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/45/15545/3
--
To view, visit http://gerrit.cloudera.org:8080/15545
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I9c6566abb239db0e775f2beaa25a62c36313cd6f
Gerrit-Change-Number: 15545
Gerrit-PatchSet: 3
Gerrit-Owner: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
