Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/16351 )

Change subject: IMPALA-10065: Fix DCHECK when retrying a query in FINISHED state
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IMPALA-10065: Fix DCHECK when retrying a query in FINISHED state

A query will come into the FINISHED state when some rows are available,
even when some fragment instances are still executing. When a retryable
query comes into the FINISHED state and the client hasn't fetched any
results, we are still able to retry it for any retryable failures. This
patch fixes a DCHECK when retrying a FINISHED state query.

Tests:
 - Add a test in test_query_retries.py for retrying a query in FINISHED
   state.

Change-Id: I11d82bf80640760a47325833463def8a3791bdda
Reviewed-on: http://gerrit.cloudera.org:8080/16351
Reviewed-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
---
M be/src/runtime/query-driver.cc
M tests/custom_cluster/test_query_retries.py
2 files changed, 25 insertions(+), 1 deletion(-)

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

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I11d82bf80640760a47325833463def8a3791bdda
Gerrit-Change-Number: 16351
Gerrit-PatchSet: 5
Gerrit-Owner: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Sahil Takiar <stak...@cloudera.com>

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