Tim Armstrong has uploaded a new patch set (#2).

Change subject: IMPALA-5199: prevent hang on empty row batch exchange
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IMPALA-5199: prevent hang on empty row batch exchange

The error path where delivery of "eos" fails now behaves
the same as if delivery of a row batch fails.

Testing:
Added a timeout test where the leaf fragments return 0 rows. Before
the change this reproduced the hang.

Change-Id: Ib370ebe44e3bb34d3f0fb9f05aa6386eb91c8645
---
M be/src/runtime/data-stream-mgr.cc
M testdata/workloads/functional-query/queries/QueryTest/exchange-delays.test
2 files changed, 23 insertions(+), 4 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/05/8005/2
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ib370ebe44e3bb34d3f0fb9f05aa6386eb91c8645
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sail...@cloudera.com>

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