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https://issues.apache.org/jira/browse/KNOX-1670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16719082#comment-16719082
 ] 

Kevin Risden commented on KNOX-1670:
------------------------------------

Here is an example:

{code:java}
19:57:17 [INFO] Running 
org.apache.knox.gateway.ha.provider.impl.HBaseZookeeperURLManagerTest
19:57:25 [ERROR] Tests run: 5, Failures: 0, Errors: 1, Skipped: 0, Time 
elapsed: 8.175 s <<< FAILURE! - in 
org.apache.knox.gateway.ha.provider.impl.HBaseZookeeperURLManagerTest
19:57:25 [ERROR] 
testHBaseZookeeperURLManagerLoading(org.apache.knox.gateway.ha.provider.impl.HBaseZookeeperURLManagerTest)
  Time elapsed: 0.007 s  <<< ERROR!
19:57:25 java.lang.IllegalArgumentException: Multiple entries with same key: 
InstanceSpec{dataDirectory=/tmp/1544489841000-2, port=38465, 
electionPort=45463, quorumPort=39277, deleteDataDirectoryOnClose=true, 
serverId=48, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} 
org.apache.curator.test.InstanceSpec@59c44bbe=[InstanceSpec{dataDirectory=/tmp/1544489841000-0,
 port=45135, electionPort=40199, quorumPort=39473, 
deleteDataDirectoryOnClose=true, serverId=46, tickTime=-1, maxClientCnxns=-1, 
customProperties={}, hostname=127.0.0.1} 
org.apache.curator.test.InstanceSpec@59c465cc, 
InstanceSpec{dataDirectory=/tmp/1544489841000-1, port=38465, 
electionPort=33335, quorumPort=43529, deleteDataDirectoryOnClose=true, 
serverId=47, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} org.apache.curator.test.InstanceSpec@59c44bbe, 
InstanceSpec{dataDirectory=/tmp/1544489841000-2, port=38465, 
electionPort=45463, quorumPort=39277, deleteDataDirectoryOnClose=true, 
serverId=48, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} org.apache.curator.test.InstanceSpec@59c44bbe] and 
InstanceSpec{dataDirectory=/tmp/1544489841000-1, port=38465, 
electionPort=33335, quorumPort=43529, deleteDataDirectoryOnClose=true, 
serverId=47, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} 
org.apache.curator.test.InstanceSpec@59c44bbe=[InstanceSpec{dataDirectory=/tmp/1544489841000-0,
 port=45135, electionPort=40199, quorumPort=39473, 
deleteDataDirectoryOnClose=true, serverId=46, tickTime=-1, maxClientCnxns=-1, 
customProperties={}, hostname=127.0.0.1} 
org.apache.curator.test.InstanceSpec@59c465cc, 
InstanceSpec{dataDirectory=/tmp/1544489841000-1, port=38465, 
electionPort=33335, quorumPort=43529, deleteDataDirectoryOnClose=true, 
serverId=47, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} org.apache.curator.test.InstanceSpec@59c44bbe, 
InstanceSpec{dataDirectory=/tmp/1544489841000-2, port=38465, 
electionPort=45463, quorumPort=39277, deleteDataDirectoryOnClose=true, 
serverId=48, tickTime=-1, maxClientCnxns=-1, customProperties={}, 
hostname=127.0.0.1} org.apache.curator.test.InstanceSpec@59c44bbe]
19:57:25        at 
org.apache.knox.gateway.ha.provider.impl.HBaseZookeeperURLManagerTest.setup(HBaseZookeeperURLManagerTest.java:52)
19:57:25 
{code}


> ZK Tests IllegalArgument and IllegalState errors
> ------------------------------------------------
>
>                 Key: KNOX-1670
>                 URL: https://issues.apache.org/jira/browse/KNOX-1670
>             Project: Apache Knox
>          Issue Type: Test
>            Reporter: Kevin Risden
>            Assignee: Kevin Risden
>            Priority: Major
>             Fix For: 1.3.0
>
>
> I've seen the following failure a few times and not entirely sure what causes 
> it. Would be good to track down. I think it can happen in most of the ZK 
> related tests.
> {code:java}
> [ERROR] Errors: 
> [ERROR] 
> org.apache.knox.gateway.topology.monitor.RemoteConfigurationMonitorTest.testZooKeeperConfigMonitorSASLNodesExistWithAcceptableACL(org.apache.knox.gateway.topology.monitor.RemoteConfigurationMonitorTest)
> [ERROR]   Run 1: 
> RemoteConfigurationMonitorTest.setupTest:111->configureAndStartZKCluster:168 
> » IllegalArgument
> [ERROR]   Run 2: RemoteConfigurationMonitorTest.tearDownTest:118 » 
> IllegalState instance must b...
> {code}



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