commit 38bad954c2d903a8a61ddd728f8c58dc00412925
author Alexey Serbin <alexey@apache.org> Thu Feb 25 19:30:01 2021 -0800
committer Alexey Serbin <aserbin@cloudera.com> Fri Feb 26 22:13:18 2021 +0000
tree 8c79bada1da4a621bf11b1c7ab58db995f9148d5
parent 3faeb3d9c6c87e4d6815e06945f331a4a14402ba

[client-test] more robust TestRetrieveAuthzTokenInParallel

I saw a flakiness in the ClientTest.TestRetrieveAuthzTokenInParallel
scenario, where about 25 out of 256 runs failed when running with
--stress_cpu_threads=16:

  src/kudu/client/client-test.cc:6923: Failure
  Expected: (num_reqs) < (kThreads), actual: 21 vs 20

This patch addresses the issue by:
  * skipping the scenario when --stress_cpu_threads is not zero
  * skipping the scenario when running at single-core CPU machines
  * limiting the number of threads up to the number of CPU cores

Change-Id: I0afa5ae72ccb96a218b6c6ff026ad88a70dea4f7
Reviewed-on: http://gerrit.cloudera.org:8080/17128
Tested-by: Alexey Serbin <aserbin@cloudera.com>
Reviewed-by: Hao Hao <hao.hao@cloudera.com>
Reviewed-by: Andrew Wong <awong@cloudera.com>