[infinispan-issues] [JBoss JIRA] (ISPN-6038) ClientAsymmetricClusterTest.testAsymmetricCluster random failures

[Tristan Tarrant (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-6038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13169075#comment-13169075 ] 

Tristan Tarrant commented on ISPN-6038:
---------------------------------------

This is quite tricky to resolve:
the test is supposed to demonstrate that clients can connect to caches which are only defined on some nodes, but the way the PING is handled prevents this from succeeding if the first server to reply doesn't have the cache.
If we really want to support asymmetric caches (and I think it's too much effort for the remote use-case anyway), PING should look at the hotrod topology cache for topology information instead of checking with its cache manager for cache existence. However, this raises another issue: the cache might have been defined after the server has started so the topology cache won't have any knowledge about it. This could be mitigated by adding a cacheStarted listener on the cacheManager which would update the topology information, but obviously this needs the cache to actually be started.

All in all, I vote to suppress this test and declare asymmetric caches as unsupported in server.

> ClientAsymmetricClusterTest.testAsymmetricCluster random failures
> -----------------------------------------------------------------
>
>                 Key: ISPN-6038
>                 URL: https://issues.jboss.org/browse/ISPN-6038
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Remote Protocols, Test Suite - Server
>            Reporter: Dan Berindei
>            Assignee: Galder Zamarreño
>            Priority: Blocker
>              Labels: testsuite_stability
>             Fix For: 8.2.0.CR1
>
>
> {{ClientAsymmetricClusterTest.testAsymmetricCluster}} is failing since the ISPN-5981 fix, which enabled {{pingOnStartup}} by default, and now returns {{null}} if the first server to be pinged doesn't have the cache defined.
> {noformat}
> 10:23:07,862 WARN  (testng-ClientAsymmetricClusterTest:) [Codec21] ISPN004005: Error received from the server: org.infinispan.server.hotrod.CacheNotFoundException: Cache with name 'asymmetricCache' not found amongst the configured caches
> 10:23:07,862 ERROR (testng-ClientAsymmetricClusterTest:) [UnitTestTestNGListener] Test testAsymmetricCluster(org.infinispan.client.hotrod.ClientAsymmetricClusterTest) failed.
> java.lang.NullPointerException
> 	at org.infinispan.client.hotrod.ClientAsymmetricClusterTest.testAsymmetricCluster(ClientAsymmetricClusterTest.java:38) ~[test-classes/:?]
> {noformat}



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