Hello Dinesh Bhat, Adar Dembo, Kudu Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/5363
to look at the new patch set (#5).
Change subject: KUDU-1785. Fix potential crash in TabletCopySourceSession
......................................................................
KUDU-1785. Fix potential crash in TabletCopySourceSession
This patch fixes a crash in TabletCopySourceSession that can result from
dereferencing a null pointer. This may occur when a follower initiates a
TabletCopy session with a source server while the source server is
bootstrapping the given tablet.
Added a stress test in tablet_copy_client_session-itest to trigger the
issue.
I looped the new test 300x each on RELEASE and TSAN modes with 8 stress
threads and got no failures:
- http://dist-test.cloudera.org/job?job_id=mpercy.1481118736.17656
- http://dist-test.cloudera.org/job?job_id=mpercy.1481118870.18180
I disabled the "fix" and ran the test again 300 times without stress
threads. I got a 100% failure rate on TSAN and a >90% failure rate in
RELEASE mode, making this a pretty reliable test for the race we are
trying to trigger:
- http://dist-test.cloudera.org/job?job_id=mpercy.1481119582.18826
- http://dist-test.cloudera.org/job?job_id=mpercy.1481119710.19325
Change-Id: I6f3ec35885dbf1a81c23ac10b1c9556dfddbd4b7
---
M src/kudu/integration-tests/CMakeLists.txt
M src/kudu/integration-tests/cluster_itest_util.cc
M src/kudu/integration-tests/cluster_itest_util.h
A src/kudu/integration-tests/tablet_copy_client_session-itest.cc
M src/kudu/tserver/tablet_copy_service.cc
M src/kudu/tserver/tablet_copy_source_session.cc
6 files changed, 219 insertions(+), 21 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/63/5363/5
--
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I6f3ec35885dbf1a81c23ac10b1c9556dfddbd4b7
Gerrit-PatchSet: 5
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Dinesh Bhat <din...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Tidy Bot
