[ZOOKEEPER-1433] improve ZxidRolloverTest (test seems flakey)

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.5
• Fix Version/s: 3.3.6, 3.4.4, 3.5.0
• Component/s: tests
• Hadoop Flags: Reviewed
• Assignee: Patrick D. Hunt
• Reporter: Wing Yew Poon
• Created: 26/Mar/12 20:00
• Updated: 30/Mar/12 11:07
• Resolved: 30/Mar/12 01:08

Description

In our jenkins job to run the ZooKeeper unit tests, org.apache.zookeeper.server.ZxidRolloverTest sometimes fails.

E.g.,

org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /foo0
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:815)
	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:843)
	at org.apache.zookeeper.server.ZxidRolloverTest.checkNodes(ZxidRolloverTest.java:154)
	at org.apache.zookeeper.server.ZxidRolloverTest.testRolloverThenRestart(ZxidRolloverTest.java:211)