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From "Clara Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15181) A simple implementation of date based tiered compaction
Date Thu, 28 Jan 2016 18:53:40 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Clara Xiong updated HBASE-15181:
--------------------------------
    Description: 
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 so the data will still get to the right store file
for time-range-scan and re-compacton with existing store file in the same time window is handled
by ExploringCompactionPolicy.

Time range overlapping among store files is tolerated and the performance impact is minimized.

Configuration can be set at hbase-site 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


  was:
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 so the data will still get to the right store file
for time-range-scan and re-compacton with existing store file in the same time window is handled
by ExploringCompactionPolicy.

Time range overlapping among store files is tolerated and the performance impact is minimized.




> 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
>
>         Attachments: HBASE-15181-v1.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 so the data will still get to the right store
file for time-range-scan and re-compacton with existing store file in the same time window
is handled by ExploringCompactionPolicy.
> Time range overlapping among store files is tolerated and the performance impact is minimized.
> Configuration can be set at hbase-site 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



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