[infinispan-issues] [JBoss JIRA] (ISPN-4212) Unable to get entries from newly started non-defined caches

[Martin Gencur (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12963257#comment-12963257 ] 

Martin Gencur commented on ISPN-4212:
-------------------------------------

The root cause is following: When a cache is request by hotrod client and the cache is not among configured caches, a default Infinispan configuration is used (new ConfigurationBuilder().build()). As a result, the AnyServerEquivalence and some other settings are not applied. The problem is that Infinispan subsystem in the server does not set any cache configuration and rather creates every cache by calling .definedConfiguration on the cache manager (this call ignores default cache configuration). 

We have two options here. The first one is quite easy and I already have a fix.
1) In Infinispan subsystem, pass a default configuration to constructor of DefaultCacheManager. The default configuration is the one from infinispan-defaults.xml (it's a local cache!) and we can easily parse it and pass to DefaultCacheManager
2) The first option is not ideal because users can not set the settings in any way (infinispan-defaults.xml is internal file of the server). Ideally, any new cache that is not configured in standalone.xml would be configured according to the "default" cache in that file. It would have the same configuration as default cache. This is tricky to implement but I'll look if it can be done.

                
> Unable to get entries from newly started non-defined caches
> -----------------------------------------------------------
>
>                 Key: ISPN-4212
>                 URL: https://issues.jboss.org/browse/ISPN-4212
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Remote Protocols, Server
>            Reporter: Jakub Markos
>            Assignee: Galder Zamarreño
>
> If you use hotrod to put entries into a cache which is not defined in standalone.xml, it will be started:
> {code}
> 15:35:50,676 INFO  [org.jboss.as.clustering.infinispan] (HotRodServerWorker-1) JBAS010281: Started nonDefinedCache cache from local container
> {code}
> but when you try to retrieve the entry back, you'll get null.
> {code}
> RemoteCacheManager rcm = new RemoteCacheManager(new ConfigurationBuilder().addServer().host("localhost").port(11222).build());
> RemoteCache<String, String> cache = rcm.getCache("nonDefinedCache");
> cache.put("key", "value");
> cache.get("key"); // returns null
> {code}
> Happens in the current server snapshot.
> A while back you'd get this
> {code}
> WARN: ISPN004005: Error received from the server: org.infinispan.server.hotrod.CacheNotFoundException: Cache with name 'nonDefinedCache' not found amongst the configured caches
> {code}
> So it seems we're somewhere in the middle now (not throwing exception, but also not working). The documentation here is also wrong https://github.com/infinispan/infinispan/blob/master/client/hotrod-client/src/main/java/org/infinispan/client/hotrod/RemoteCacheManager.java#L511 . 

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