Alex Behm has posted comments on this change. Change subject: IMPALA-5199: prevent hang on empty row batch exchange ......................................................................
Patch Set 2: If we hit IMPALA-5199 without this patch, can system be brought back into a good state by cancelling the query? I think it's generally preferable to avoid hangs even if it means we unnecessarily (gracefully) have cancel some queries under load. Whether the latter case is rare is really the key question here. Is there an experiment we can do to get data to make a decision? -- To view, visit http://gerrit.cloudera.org:8080/8005 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Ib370ebe44e3bb34d3f0fb9f05aa6386eb91c8645 Gerrit-PatchSet: 2 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Tim Armstrong <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Sailesh Mukil <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-HasComments: No
