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https://issues.apache.org/jira/browse/HBASE-2899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12909283#action_12909283
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stack commented on HBASE-2899:
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@Jon Thats something else. Thats a means of changing defaults in
HColumnDescriptor -- default versions, ttls, whether bloom is on or off, etc.
-- and in HTableDescriptor. We need that too but lets make a new issue for
that. Lets do it as part of move all schema up to zk (Can have a template
schema up in zk that all new schema's seed from). While we are at it move
Configuration to zk so on change, all running processes are kicked and update
their config.
> hfile.min.blocksize.size ignored/documentation wrong
> ----------------------------------------------------
>
> Key: HBASE-2899
> URL: https://issues.apache.org/jira/browse/HBASE-2899
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Francke
> Assignee: stack
> Priority: Trivial
> Attachments: 2899.txt
>
>
> There is a property in hbase-default.xml called {{hfile.min.blocksize.size}}
> set to {{65536}}.
> The description says: Minimum store file block size. The smaller you make
> this, the bigger your index and the less you fetch on a random-access. Set
> size down if you have small cells and want faster random-access of
> individual cells.
> This property is only used in the HFileOutputFormat and nowhere else. So we
> should at least change the description to something more meaningful.
> The other option I see would be: HFile now has a DEFAULT_BLOCKSIZE field
> which could be moved to HConstants and HFile could somehow read the
> {{hfile.min.blocksize.size}} from the Configuration or use
> HConstansts.DEFAULT_BLOCKSIZE if it's not defined. I believe this is what's
> happening to the other config variables?
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