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https://issues.apache.org/jira/browse/HBASE-15181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243150#comment-15243150
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Nick Dimiduk commented on HBASE-15181:
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You folks see HBASE-15659 ? Maybe there's some metrics you'd want to expose for 
this one as well?

> A simple implementation of date based tiered compaction
> -------------------------------------------------------
>
>                 Key: HBASE-15181
>                 URL: https://issues.apache.org/jira/browse/HBASE-15181
>             Project: HBase
>          Issue Type: New Feature
>          Components: Compaction
>            Reporter: Clara Xiong
>            Assignee: Clara Xiong
>             Fix For: 2.0.0, 1.3.0, 0.98.18
>
>         Attachments: HBASE-15181-0.98-ADD.patch, HBASE-15181-0.98.patch, 
> HBASE-15181-0.98.v4.patch, HBASE-15181-98.patch, HBASE-15181-ADD.patch, 
> HBASE-15181-branch-1.patch, HBASE-15181-master-v1.patch, 
> HBASE-15181-master-v2.patch, HBASE-15181-master-v3.patch, 
> HBASE-15181-master-v4.patch, HBASE-15181-v1.patch, HBASE-15181-v2.patch
>
>
> This is a simple implementation of date-based tiered compaction similar to 
> Cassandra's for the following benefits:
> 1. Improve date-range-based scan by structuring store files in date-based 
> tiered layout.
> 2. Reduce compaction overhead.
> 3. Improve TTL efficiency.
> Perfect fit for the use cases that:
> 1. has mostly date-based date write and scan and a focus on the most recent 
> data. 
> 2. never or rarely deletes data.
> Out-of-order writes are handled gracefully. Time range overlapping among 
> store files is tolerated and the performance impact is minimized.
> Configuration can be set at hbase-site.xml or overriden at per-table or 
> per-column-famly level by hbase shell.
> Design spec is at 
> https://docs.google.com/document/d/1_AmlNb2N8Us1xICsTeGDLKIqL6T-oHoRLZ323MG_uy8/edit?usp=sharing
> Results in our production is at 
> https://docs.google.com/document/d/1GqRtQZMMkTEWOijZc8UCTqhACNmdxBSjtAQSYIWsmGU/edit#



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