Dan Hecht has posted comments on this change. Change subject: IMPALA-1972/IMPALA-3882: Fix QueryExecState::lock_ contention ......................................................................
Patch Set 2: (2 comments) http://gerrit.cloudera.org:8080/#/c/6707/2//COMMIT_MSG Commit Message: Line 22: and run parallel queries. > Load isn't relevant. The lock dependency is the problem, so as long as you And can you first just try to reproduce the problem manually by doing those steps: 1) Executes a query and simulates getting stuck in planning (loop forever). 2) see if the debug webpage is stuck. It should be since you're holding a QES lock. 3) Execute a second query. Now this query should not even be able to register since the webserver is holding the map lock (while waiting for the QES::lock of #1). http://gerrit.cloudera.org:8080/#/c/6707/3/be/src/service/impala-http-handler.cc File be/src/service/impala-http-handler.cc: PS3, Line 722: ate->query_status(); not sure if that's what we should put. Let's see what Henry suggests. -- To view, visit http://gerrit.cloudera.org:8080/6707 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Ie44daa93e3ae4d04d091261f3ec4891caffe8026 Gerrit-PatchSet: 2 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Bharath Vissapragada <bhara...@cloudera.com> Gerrit-Reviewer: Bharath Vissapragada <bhara...@cloudera.com> Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com> Gerrit-Reviewer: Henry Robinson <he...@cloudera.com> Gerrit-HasComments: Yes
