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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11697) Improve the 'Too many blocks' message on UI blockcache status page
Date Thu, 07 Aug 2014 22:11:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14089929#comment-14089929
] 

Andrew Purtell commented on HBASE-11697:
----------------------------------------

Agree, I don't think we need the message, but this change has 3 +1s so I'm committing it now.

> Improve the 'Too many blocks' message on UI blockcache status page
> ------------------------------------------------------------------
>
>                 Key: HBASE-11697
>                 URL: https://issues.apache.org/jira/browse/HBASE-11697
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Andrew Purtell
>            Assignee: Mikhail Antonov
>            Priority: Minor
>             Fix For: 0.99.0, 2.0.0, 0.98.6
>
>         Attachments: HBASE-11697.patch, TooManyBlocks.png
>
>
> If metrics calculations over blockcache contents stopped after examining hbase.ui.blockcache.by.file.max
items, the UI will put up a message. However, this notion of "too many blocks" / fullness
refers to structures used for calculating blockcache metrics. See BlockCacheUtil. We should
improve this message so it does not leave a user the impression the blockcache may be in a
bad state.



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