Casey Ching has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2504

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.
4) Make generating a runtime info comparison report a little easier.
   This still requires the user to make code changes, but now it's just
   uncommenting a block of code. There is already a TODO to properly
   expose this from the CLI.

Change-Id: Ia7bd39861162e85b9091a0ef41ed1c317737e66c
---
M tests/stress/concurrent_select.py
1 file changed, 65 insertions(+), 16 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/04/2504/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia7bd39861162e85b9091a0ef41ed1c317737e66c
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Casey Ching <[email protected]>

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