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https://issues.apache.org/jira/browse/HBASE-12897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14308373#comment-14308373
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churro morales commented on HBASE-12897:
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Totally agree, if the memstore is 0.0, then we default to the default memstore
size which is 40%. So you are always guaranteed to have some memstore.
> Minimum memstore size is a percentage
> -------------------------------------
>
> Key: HBASE-12897
> URL: https://issues.apache.org/jira/browse/HBASE-12897
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 0.98.10, 1.1.0
> Reporter: churro morales
> Assignee: churro morales
> Attachments: HBASE-12897.patch
>
>
> We have a cluster which is optimized for random reads. Thus we have a large
> block cache and a small memstore. Currently our heap is 20GB and we wanted
> to configure the memstore to take 4% or 800MB. Right now the minimum
> memstore size is 5%. What do you guys think about reducing the minimum size
> to 1%? Suppose we log a warning if the memstore is below 5% but allow it?
> What do you folks think?
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