Zoltan Borok-Nagy has uploaded this change for review. ( http://gerrit.cloudera.org:8080/16923
Change subject: IMPALA-10422: EXPLAIN statements leak ACID transactions and locks ...................................................................... IMPALA-10422: EXPLAIN statements leak ACID transactions and locks Currently EXPLAIN statements might open ACID transactions and create locks on ACID tables. This is not necessary since we won't modify the table. But the real problem is that these transactions and locks are leaked and open forever. They are even getting heartbeated while the coordinator is still running. The solution is to not consume any ACID resources for EXPLAIN statements. Testing: * Added EXPLAIN INSERT OVERWRITE in front of an actual INSERT OVERWRITE in an e2e test Change-Id: I05113b1fd9a3eb2d0dd6cf723df916457f3fbf39 --- M fe/src/main/java/org/apache/impala/service/Frontend.java M testdata/workloads/functional-query/queries/QueryTest/acid-insert.test 2 files changed, 5 insertions(+), 2 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/23/16923/1 -- To view, visit http://gerrit.cloudera.org:8080/16923 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I05113b1fd9a3eb2d0dd6cf723df916457f3fbf39 Gerrit-Change-Number: 16923 Gerrit-PatchSet: 1 Gerrit-Owner: Zoltan Borok-Nagy <[email protected]>
