Huaisi Xu has uploaded a new patch set (#6). Change subject: IMPALA-3385: Fix crashes on accessing error_log ......................................................................
IMPALA-3385: Fix crashes on accessing error_log We used to check error_log empty with error_log.empty(), but this may return false even when some of its member has empty messages, thus crashes impala. This commit: 1. Make sure that messages vectors are always non-empty when accessed. 2. Remove error_log from hdfsScanNode::splitprocess since the logs may contain irrelevant errors. This also prevents a potential race condition when error_log is checked and enters if clause, but later is changed by other threads. 3. Hold locks when returning error_log. Change-Id: I3a7e3d22e26147ada780aae5aed1f2e25a515afc --- M be/src/exec/hdfs-scan-node.cc M be/src/runtime/coordinator.cc M be/src/runtime/runtime-state.cc M be/src/runtime/runtime-state.h M be/src/util/error-util.cc M common/thrift/ImpalaInternalService.thrift 6 files changed, 23 insertions(+), 27 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/29/2829/6 -- To view, visit http://gerrit.cloudera.org:8080/2829 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newpatchset Gerrit-Change-Id: I3a7e3d22e26147ada780aae5aed1f2e25a515afc Gerrit-PatchSet: 6 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: Huaisi Xu <[email protected]> Gerrit-Reviewer: Bharath Vissapragada <[email protected]> Gerrit-Reviewer: Dan Hecht <[email protected]> Gerrit-Reviewer: Huaisi Xu <[email protected]>
