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https://issues.apache.org/jira/browse/IGNITE-2565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15142459#comment-15142459
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Vladimir Ershov commented on IGNITE-2565:
-----------------------------------------

I've take a look on some of that typical issues and it looks like they are 
actually not typical and have different reasons. The last one:
{noformat}
java.lang.AssertionError: expected:<0> but was:<1>
    at org.junit.Assert.fail(Assert.java:88)
    at org.junit.Assert.failNotEquals(Assert.java:743)
    at org.junit.Assert.assertEquals(Assert.java:118)
    at org.junit.Assert.assertEquals(Assert.java:144)
    at 
org.jsr107.tck.management.CacheMBStatisticsBeanTest.testCacheStatistics(CacheMBStatisticsBeanTest.java:104)
{noformat}
Most likely to be related with counting miss logic on the server side, which is 
not linked to IGNITE-2483, and should be fixed at separated ticket. 


> TCK suite fail periodically
> ---------------------------
>
>                 Key: IGNITE-2565
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2565
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.5.0.final
>            Reporter: Anton Vinogradov
>            Assignee: Vladimir Ershov
>            Priority: Critical
>              Labels: important
>             Fix For: 1.6
>
>
> TCK suite fail periodically fails with assetrions about CacheHitPercentage.
> I see that a lot of changes was made last two months where added logic with 
> invoking of metrics.onRead(); possible this affects statictic counting.
> Typical stacktrace:
> java.lang.AssertionError: expected:<100.0> but was:<50.0>
>     at org.junit.Assert.fail(Assert.java:88)
>     at org.junit.Assert.failNotEquals(Assert.java:743)
>     at org.junit.Assert.assertEquals(Assert.java:118)
>     at org.junit.Assert.assertEquals(Assert.java:144)
>     at 
> org.jsr107.tck.management.CacheMBStatisticsBeanTest.testCacheStatisticsInvokeEntryProcessorRemove(CacheMBStatisticsBeanTest.java:424)



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