Csaba Ringhofer has posted comments on this change. ( http://gerrit.cloudera.org:8080/15050 )
Change subject: IMPALA-9291: MemTracker's TryConsume() should behave consistent with Consume()/Release() ...................................................................... Patch Set 1: Code-Review+1 (1 comment) http://gerrit.cloudera.org:8080/#/c/15050/1/be/src/runtime/mem-tracker.h File be/src/runtime/mem-tracker.h: http://gerrit.cloudera.org:8080/#/c/15050/1/be/src/runtime/mem-tracker.h@171 PS1, Line 171: DCHECK_GE(bytes, 0); : DCHECK(!closed_) << label_; : if (consumption_metric_ != nullptr) RefreshConsumptionFromMetric(); : if (UNLIKELY(bytes == 0)) return true; I agree with adding the DCHECK to catch such calls during tests, but I am concerned about this issue occurring in a release build (e.g. if the value comes from a corrupt file). My preference is to return with false in the < 0 case, and add similar logic to other consume/release functions. -- To view, visit http://gerrit.cloudera.org:8080/15050 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I22e613c49e4a6bd218e7f7f7c0d6bec95b75cff5 Gerrit-Change-Number: 15050 Gerrit-PatchSet: 1 Gerrit-Owner: Zoltan Borok-Nagy <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-Comment-Date: Thu, 16 Jan 2020 13:48:07 +0000 Gerrit-HasComments: Yes
