Alex Behm has uploaded a new patch set (#3). Change subject: IMPALA-4270: Gracefully fail unsupported queries with mt_dop > 0. ......................................................................
IMPALA-4270: Gracefully fail unsupported queries with mt_dop > 0. MT_DOP > 0 is only supported for plans without distributed joins or table sinks. Adds validation to fail unsupported queries gracefully in planning. For scans in queries that are executable with MT_DOP > 0 we either use the optimized MT scan node BE implementation (only Parquet), or we use the conventional scan node with num_scanner_threads=1. TODO: Still need to add end-to-end tests. Change-Id: I91a60ea7b6e3ae4ee44be856615ddd3cd0af476d --- M be/src/exec/exec-node.cc M common/thrift/PlanNodes.thrift M fe/src/main/java/org/apache/impala/analysis/Analyzer.java M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java M fe/src/main/java/org/apache/impala/planner/Planner.java M fe/src/main/java/org/apache/impala/planner/PlannerContext.java M fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java M fe/src/test/java/org/apache/impala/planner/PlannerTest.java M fe/src/test/java/org/apache/impala/planner/PlannerTestBase.java A testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation.test 10 files changed, 367 insertions(+), 33 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/77/4677/3 -- To view, visit http://gerrit.cloudera.org:8080/4677 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newpatchset Gerrit-Change-Id: I91a60ea7b6e3ae4ee44be856615ddd3cd0af476d Gerrit-PatchSet: 3 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Alex Behm <alex.b...@cloudera.com> Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com> Gerrit-Reviewer: Marcel Kornacker <mar...@cloudera.com>