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From "Lars Volker (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-3944: Fix crash in SimpleScheduler
Date Tue, 23 Aug 2016 23:19:02 GMT
Lars Volker has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/4102

Change subject: IMPALA-3944: Fix crash in SimpleScheduler
......................................................................

IMPALA-3944: Fix crash in SimpleScheduler

SimpleScheduler::BackendConfig maintains two maps, hostname->IP and
IP->[list of backends]. In situations where multiple backends run on a
single host, BackendConfig::RemoveBackend was erroneously removing the
hostname->IP mapping, even when the list of backends for a host was not
empty. The fix is to only remove this mapping when the last backend of a
host gets removed.

I will push a test in a separate change.

Change-Id: I1c2c58c2f9e7de0936aba03dcce86cdc4b31a866
---
M be/src/scheduling/simple-scheduler.cc
1 file changed, 11 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/02/4102/1
-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1c2c58c2f9e7de0936aba03dcce86cdc4b31a866
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Lars Volker <lv@cloudera.com>

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