[jbosscache-issues] [JBoss JIRA] Updated: (JBCACHE-1552) Cache.removeNode(Fqn) does not affect cache loading until commit

[Manik Surtani (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBCACHE-1552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manik Surtani updated JBCACHE-1552:
-----------------------------------

    Fix Version/s: 3.3.0.GA


> Cache.removeNode(Fqn) does not affect cache loading until commit
> ----------------------------------------------------------------
>
>                 Key: JBCACHE-1552
>                 URL: https://jira.jboss.org/jira/browse/JBCACHE-1552
>             Project: JBoss Cache
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Cache loaders
>    Affects Versions: 3.2.1.GA
>            Reporter: Krzysztof Sobolewski
>            Assignee: Manik Surtani
>             Fix For: 3.3.0.GA
>
>         Attachments: DeletedNodesLoadTest.java
>
>
> A sequence of operations like this:
> // we have something in the cache
> cache.put(fqn, key, value);
> // but it's not in memory right now
> cache.evict(Fqn.ROOT, true);
> tm.begin();
> // I want to remove it
> cache.removeNode(Fqn.ROOT); // returns false, BTW
> // and expect it to not be there
> assert cache.get(fqn, key) == null; // fails
> tm.commit();
> assert cache.get(fqn, key) == null; // passes if no get() in transaction
> The problem is that the failing get() loads the node from cache loader. The second assertion passes, because the modification is recorded in the transaction and carried out on the cache loader during commit (it is also replicated across the cluster). But otherwise the cache does not notice the remove().
> I think it can also lead to inconsistency between cache loader and transient state (the get() in transaction loads to memory and commit removes from cache loader).

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