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https://issues.apache.org/jira/browse/IGNITE-12726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17077178#comment-17077178
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Ignite TC Bot commented on IGNITE-12726:
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{panel:title=Branch: [pull/7606/head] Base: [master] : No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity *--> Run :: All*
Results|https://ci.ignite.apache.org/viewLog.html?buildId=5186870&buildTypeId=IgniteTests24Java8_RunAll]
> Cache names can't be used as part of DistributedMetaStorage keys
> ----------------------------------------------------------------
>
> Key: IGNITE-12726
> URL: https://issues.apache.org/jira/browse/IGNITE-12726
> Project: Ignite
> Issue Type: Bug
> Reporter: Ivan Bessonov
> Assignee: Ivan Bessonov
> Priority: Major
> Fix For: 2.8.1
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Issue was discovered during the implementation of IGNITE-12721. Here's a shot
> version of the description:
> * local MetaStorage can't handle keys that have more than 64 bytes in their
> "byte[]" representation. Since DistributedMetaStorage uses it and adds some
> specific prefixes on top, we have a strict limit on the key length.
> Just to be clear - it just won't work, IGNITE-12721 only adds a valid
> exception and meaningful error message to the API.
>
> Recently IGNITE-11987 from [IEP-35] has been merged to master and 2.8 release
> branch, and it does exactly whats written in the title - adds cache name as a
> part of the key. So, if you use long cache name in, for example, test called
> "org.apache.ignite.internal.metric.MetricsConfigurationTest#testConfigRemovedOnCacheRemove",
> you'll get AssertionErrors in log. By "long" I mean about 50 symbols. This
> should not happen.
>
> I see two options here:
> * leave everything as it is and change keys format;
> * modify MetaStorage so that it can handle longer keys. I prefer this one.
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