Joe McDonnell has uploaded this change for review. ( http://gerrit.cloudera.org:8080/16288
Change subject: IMPALA-10047: Revert core piece of IMPALA-6984 ...................................................................... IMPALA-10047: Revert core piece of IMPALA-6984 Performance testing on TPC-DS found a peformance regression on short queries due to delayed exec status reports. Further testing traced this back to IMPALA-6984's behavior of cancelling backends on EOS. The coordinator log show that CancelBackends() call intermittently taking 10 seconds due to timing out in the RPC layer. As a temporary workaround, this reverts the core part of IMPALA-6984 that added that CancelBackends() call for EOS. It leaves the rest of IMPALA-6984 intact, as other code has built on top of it. Testing: - Core job - Performance tests Change-Id: Ibf00a56e91f0376eaaa552e3bb4763501bfb49e8 (cherry picked from commit b91f3c0e064d592f3cdf2a2e089ca6546133ba55) --- M be/src/runtime/coordinator.cc 1 file changed, 1 insertion(+), 3 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/88/16288/1 -- To view, visit http://gerrit.cloudera.org:8080/16288 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Ibf00a56e91f0376eaaa552e3bb4763501bfb49e8 Gerrit-Change-Number: 16288 Gerrit-PatchSet: 1 Gerrit-Owner: Joe McDonnell <joemcdonn...@cloudera.com>
