[ZOOKEEPER-1905] ZKClients are hitting KeeperException$ConnectionLossException due to wrong usage pattern

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: 3.4.7
• Component/s: tests
• Assignee: Rakesh Radhakrishnan
• Reporter: Rakesh Radhakrishnan
• Created: 25/Mar/14 13:33
• Updated: 27/Mar/14 13:53
• Resolved: 27/Mar/14 13:53

Description

Since the ZooKeeper client connection establishment happens in async way, the client should wait for the 'KeeperState.SyncConnected' event before start performing any ops. Many tests are having this kind of wrong pattern.

Reference:- Below stack trace taken from build https://builds.apache.org/job/ZooKeeper-3.4-WinVS2008_java/465/

    [junit] 2014-03-19 08:36:53,056 [myid:] - INFO  [main:JUnit4ZKTestRunner$LoggedInvokeMethod@62] - TEST METHOD FAILED testChecksums
    [junit] org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /crctest- 942
    [junit] 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
    [junit] 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
    [junit] 	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
    [junit] 	at org.apache.zookeeper.server.CRCTest.testChecksums(CRCTest.java:127)

Issue Links

• relates to: ZOOKEEPER-22 Automatic request retries on connect failover