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https://issues.apache.org/jira/browse/HBASE-15314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823401#comment-15823401
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chunhui shen commented on HBASE-15314:
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Sorry for the late response,
but I think it's not a good choice that adding the notion of 'segmentation',
it will make things complex and is difficult to understand about allocating
block for newer.
Each IOEngine should provide a logic contiguous storage even if using several
physical IO devices, so the design and implementation will become simple.
Just my thought, FYI
Thanks
PS:
The uploaded FileIOEngine.java support multi-files storage which is used in our
internal branch.
Less than 50 lines are needed to add this feature.
> Allow more than one backing file in bucketcache
> -----------------------------------------------
>
> Key: HBASE-15314
> URL: https://issues.apache.org/jira/browse/HBASE-15314
> Project: HBase
> Issue Type: Sub-task
> Components: BucketCache
> Reporter: stack
> Assignee: Aaron Tokhy
> Attachments: HBASE-15314.master.001.patch,
> HBASE-15314.master.001.patch, HBASE-15314.patch, HBASE-15314-v2.patch,
> HBASE-15314-v3.patch
>
>
> Allow bucketcache use more than just one backing file: e.g. chassis has more
> than one SSD in it.
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