[ZOOKEEPER-1594] TestReconfig intermittently fails

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.5.0
• Component/s: c client
• Assignee: Marshall McMullen
• Reporter: Marshall McMullen
• Created: 30/Nov/12 05:27
• Updated: 05/Nov/16 17:30
• Resolved: 05/Nov/16 17:30

Description

We've seen an intermittent failure in one of the C client tests TestReconfig which was committed as part of ZOOKEEPER-1355.

The test that is failing is failing before any rebalancing algorithm is invoked. After inspecting this we've concluded it is a failure to properly seed the random number generator properly. This same problem was seen and solved on the Java client side so we just need to do something similar on the C client side.

The assertion:

Build/trunk/src/c/tests/TestReconfig.cc:571: Assertion: assertion failed [Expression: numClientsPerHost.at(i) >= lowerboundClientsPerServer(numClients, numServers)]
[exec] [exec] Failures !!!
[exec] [exec] Run: 38 Failure total: 1 Failures: 1 Errors: 0
[exec] [exec] make: *** [run-check] Error 1
[exec]
[exec] BUILD FAILED
[exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1262: The following error occurred while executing this line:
[exec] /home/jenkins/jenkins-slave/workspace/PreCommit-ZOOKEEPER-Build/trunk/build.xml:1272: exec returned: 2

Also this one:

From the latest build logs:
[exec] Zookeeper_watchers::testChildWatcher2 : elapsed 54 : OK
[exec] /home/jenkins/jenkins-slave/workspace/ZooKeeper-trunk/trunk/src/c/tests/TestReconfig.cc:183: Assertion: equality assertion failed [Expected: 1, Actual : 0]
[exec] Failures !!!
[exec] Run: 67 Failure total: 1 Failures: 1 Errors: 0
[exec] FAIL: zktest-mt
[exe

Issue Links

• duplicates: ZOOKEEPER-2152 Intermittent failure in TestReconfig.cc
• relates to: ZOOKEEPER-2152 Intermittent failure in TestReconfig.cc
• relates to: ZOOKEEPER-1712 transient test failure in TestReconfig.cc