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From "Jean-Marc Spaggiari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9806) Add PerfEval tool for BlockCache
Date Wed, 23 Oct 2013 03:21:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802554#comment-13802554
] 

Jean-Marc Spaggiari commented on HBASE-9806:
--------------------------------------------

They have 16GB by default but I can get 16GB from one and put it on another one. So. Options
are:
1) I can run on a 4 nodes cluster where all nodes will have 16GB
2) I can run on 2 standalone/pseudo-dist servers (1 SSD, 1SATA) with 32GB.

Of course, I also have some nodes where I have only 4GB ;) But I don't think you are interested
but those one ;)

> Add PerfEval tool for BlockCache
> --------------------------------
>
>                 Key: HBASE-9806
>                 URL: https://issues.apache.org/jira/browse/HBASE-9806
>             Project: HBase
>          Issue Type: Test
>          Components: Performance, test
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>         Attachments: HBASE-9806.00.patch, HBASE-9806.01.patch
>
>
> We have at least three different block caching layers with myriad configuration settings.
Let's add a tool for evaluating memory allocations and configuration combinations with different
access patterns.



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