[infinispan-issues] [JBoss JIRA] Commented: (ISPN-1206) rest and memcached server modules aren't isolated and affect each other

[Galder Zamarreño (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-1206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12618725#comment-12618725 ] 

Galder Zamarreño commented on ISPN-1206:
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Reopening this cos it's not a good idea to change the default cache in EDG but leave it as it is in the Infinispan REST server. As noted in https://issues.jboss.org/browse/JBPAPP-6777?focusedCommentId=12618719&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12618719 - we can't just change the default cache name in REST because there's an implicit link between the current default cache name and the associated configuration (even though it's not documented), and that's been there since day one. So, changing REST's default cache would effectively break the REST protocol.

So, as proposed in that comment, we could change the default cache name for the Memcached server because there're no links between the protocol and the cache that's used underneath. To maintain same logic, the new Memcached default cache would just need to clone the default cache configuration. That'd be very simple to implement.

> rest and memcached server modules aren't isolated and affect each other
> -----------------------------------------------------------------------
>
>                 Key: ISPN-1206
>                 URL: https://issues.jboss.org/browse/ISPN-1206
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Cache Server
>    Affects Versions: 5.0.0.CR4
>            Reporter: Michal Linhard
>            Assignee: Galder Zamarreño
>
> if we work with the same key with REST and memcached client at once, a server side class cast exception occurs because both work with different value representation:
> SERVER_ERROR java.lang.ClassCastException: [B cannot be cast to org.infinispan.server.memcached.MemcachedValue
> SERVER_ERROR java.lang.ClassCastException: [B cannot be cast to org.infinispan.server.core.CacheValue
> this happens when both server modules use shared cache manager

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