Todd Lipcon has submitted this change and it was merged.

Change subject: maintenance_manager-test: fix flaky test
......................................................................


maintenance_manager-test: fix flaky test

TestCompletedOps failed relatively often because of the following racy
interleaving:

- Multiple MM threads called Prepare() while remaining_runs_ was positive
- These threads then called Perform(), which decremented remaining_runs_
  once per thread. This resulted in the op being called more times than
  'remaining_runs_', causing an assertion failure.

The fix is to separately count the number of 'prepared' ops.

Change-Id: I003e72339f69228195130c89572a20be3009f22c
Reviewed-on: http://gerrit.cloudera.org:8080/4634
Reviewed-by: Jean-Daniel Cryans <jdcry...@apache.org>
Tested-by: Kudu Jenkins
---
M src/kudu/util/maintenance_manager-test.cc
1 file changed, 10 insertions(+), 2 deletions(-)

Approvals:
  Jean-Daniel Cryans: Looks good to me, approved
  Kudu Jenkins: Verified



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Gerrit-MessageType: merged
Gerrit-Change-Id: I003e72339f69228195130c89572a20be3009f22c
Gerrit-PatchSet: 2
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Dan Burkert <d...@cloudera.com>
Gerrit-Reviewer: Jean-Daniel Cryans <jdcry...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>

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