[infinispan-issues] [JBoss JIRA] (ISPN-6910) Random failures due to MagicKey

[Radim Vansa (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-6910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13278463#comment-13278463 ] 

Radim Vansa commented on ISPN-6910:
-----------------------------------

Writing a custom CHF and KP requires non-trivial effort, that's no OOTB solution. I was addressing random failures I was getting in an existing test (regrettably now I don't recall which one it was out of my head).

> Random failures due to MagicKey
> -------------------------------
>
>                 Key: ISPN-6910
>                 URL: https://issues.jboss.org/browse/ISPN-6910
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Test Suite - Core
>    Affects Versions: 9.0.0.Alpha3
>            Reporter: Radim Vansa
>            Assignee: Radim Vansa
>             Fix For: 9.0.0.Beta1, 9.0.0.Final
>
>
> There is a fixed 1000-iteration loop to find out proper key. In tests that create many magic keys, the cumulative probability of failing one of the keys' generation is going up and this is causing random failures in the testsuite.
> Moreover, the equality of magic keys is based only on the hashCode - with many keys, there is a non-trivial chance that the hashcodes will make two logically different keys equal.



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