[infinispan-issues] [JBoss JIRA] (ISPN-7104) Cache remove fails to return value in invalidation mode with cache store

[Vladimir Dzhuvinov (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-7104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13566455#comment-13566455 ] 

Vladimir Dzhuvinov commented on ISPN-7104:
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The bug persists in 9.2.1, our recent tests showed.

Out of 1K putIfAbsent ops, it was wrong 539 times.

> Cache remove fails to return value in invalidation mode with cache store
> ------------------------------------------------------------------------
>
>                 Key: ISPN-7104
>                 URL: https://issues.jboss.org/browse/ISPN-7104
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 8.2.4.Final, 9.2.1.Final
>            Reporter: Vladimir Dzhuvinov
>            Assignee: William Burns
>            Priority: Critical
>         Attachments: RemoveInInvalidationModeTest.java
>
>
> The cache `remove` method occasionally fails to return the removed value, and returns `null`.
> Observed in two node setup in invalidation mode, with a configured cache store (Redis).
> Tests reveal that about 40% of the times the method returns `null`, the remaining 60% the removed value is correctly returned. 



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