[infinispan-issues] [JBoss JIRA] Resolved: (ISPN-582) Eviction with passivation introduces a race where entries are invisible to callers

[Manik Surtani (JIRA)]

     [ https://jira.jboss.org/browse/ISPN-582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manik Surtani resolved ISPN-582.
--------------------------------

    Resolution: Done


> Eviction with passivation introduces a race where entries are invisible to callers
> ----------------------------------------------------------------------------------
>
>                 Key: ISPN-582
>                 URL: https://jira.jboss.org/browse/ISPN-582
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Eviction
>    Affects Versions: 4.1.0.CR2
>            Reporter: Paul Nardone
>            Assignee: Manik Surtani
>            Priority: Blocker
>             Fix For: 4.1.0.CR3
>
>         Attachments: InfinispanTest4.java
>
>
> Setup a simple case with a cacheloader set with passivation enabled and and eviction policy of LRU and max enteries 1
> -Put first value to cache
> -Put second value to the cache
> -Eviction runs
> org.infinispan.interceptors.PassivationInterceptor#visitEvictCommand attempts to passivate the first value but dataContainer.get(key); returns NULL as it appears the value has already been removed from the data container,  which is then passed into the cache store resulting in the NPE
> Behaviour is subtly different if EvictionThreadPolicy.DEFAULT is used as the NPE is not immediately obvious but the operation still fails
> With EvictionStrategy.LIRS similar issues arrise, the bug is not apparent on the second put operation but when get is executed NULL is returned 
> This only seems to occur with Passivation enabled
> I encountered this when making heavy use of Lucene InfinispanDirectory and traced it through to this issue.

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