Alexey Serbin has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/23708 )

Change subject: KUDU-2501 more instrumentation for TestNonRandomWorkloadLoadgen
......................................................................

KUDU-2501 more instrumentation for TestNonRandomWorkloadLoadgen

This patch adds a bit of instrumentation to help with troubleshooting
of the ToolTest.TestNonRandomWorkloadLoadgen scenario when it fails.

Also, with this patch now all the test table's tablets are verified
to have zero bloom filter lookups after the test workload completes:
this is done by using '*' pattern for tablet identifier instead of
'nullptr' in the original version.  The original version verified only
the very first tablet in the metrics output, and that wasn't correct.

Change-Id: Ia9b4a63a00ecbf9af9151fef8eead10c627688c5
Reviewed-on: http://gerrit.cloudera.org:8080/23708
Tested-by: Alexey Serbin <[email protected]>
Reviewed-by: Alexey Serbin <[email protected]>
---
M src/kudu/integration-tests/cluster_itest_util.cc
M src/kudu/integration-tests/cluster_itest_util.h
M src/kudu/tools/kudu-tool-test.cc
3 files changed, 29 insertions(+), 10 deletions(-)

Approvals:
  Alexey Serbin: Looks good to me, approved; Verified

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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Ia9b4a63a00ecbf9af9151fef8eead10c627688c5
Gerrit-Change-Number: 23708
Gerrit-PatchSet: 4
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Abhishek Chennaka <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Marton Greber <[email protected]>
Gerrit-Reviewer: Zoltan Chovan <[email protected]>

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