Impala Public Jenkins has submitted this change and it was merged.

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
Reviewed-on: http://gerrit.cloudera.org:8080/8005
Reviewed-by: Tim Armstrong <tarmstr...@cloudera.com>
Tested-by: Impala Public Jenkins
---
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(-)

Approvals:
  Impala Public Jenkins: Verified
  Tim Armstrong: Looks good to me, approved



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Gerrit-MessageType: merged
Gerrit-Change-Id: Ib370ebe44e3bb34d3f0fb9f05aa6386eb91c8645
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Sailesh Mukil <sail...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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