Casey Ching has submitted this change and it was merged.

Change subject: Misc stress test updates
......................................................................


Misc stress test updates

Changes:
1) IMPALA-3121: Don't ignore backend <-> backend timeout errors.
2) Only collect query profiles if they are really needed. A v-tune
   profile showed 10% cpu time collecting query profiles. Previously the
   stress test would unconditionally collect a query profile even if the
   profile wouldn't be used.
3) Add CLI options to control runtime info reliability. The work was
   already done but there were no CLI params (they had to be hard
   coded). Now --samples and --max-conflicting-samples are available.

Change-Id: Ia7bd39861162e85b9091a0ef41ed1c317737e66c
Reviewed-on: http://gerrit.cloudera.org:8080/2504
Reviewed-by: Casey Ching <[email protected]>
Tested-by: Casey Ching <[email protected]>
---
M tests/stress/concurrent_select.py
1 file changed, 55 insertions(+), 16 deletions(-)

Approvals:
  Casey Ching: Looks good to me, approved; Verified



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Gerrit-MessageType: merged
Gerrit-Change-Id: Ia7bd39861162e85b9091a0ef41ed1c317737e66c
Gerrit-PatchSet: 4
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Casey Ching <[email protected]>
Gerrit-Reviewer: Casey Ching <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>

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