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https://issues.apache.org/jira/browse/HBASE-12324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183485#comment-14183485
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Vladimir Rodionov commented on HBASE-12324:
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{quote}
The only issue I see with TS is if old data come late
{quote}
There is no issue here. You will never read this stale data back unles you have
MIN_VERSIONS > 0 for that CF.
> Improve compaction speed and process for immutable short lived datasets
> -----------------------------------------------------------------------
>
> Key: HBASE-12324
> URL: https://issues.apache.org/jira/browse/HBASE-12324
> Project: HBase
> Issue Type: New Feature
> Components: Compaction
> Affects Versions: 0.98.0, 0.96.0
> Reporter: Sheetal Dolas
> Attachments: OnlyDeleteExpiredFilesCompactionPolicy.java
>
>
> We have seen multiple cases where HBase is used to store immutable data and
> the data lives for short period of time (few days)
> On very high volume systems, major compactions become very costly and
> slowdown ingestion rates.
> In all such use cases (immutable data, high write rate and moderate read
> rates and shorter ttl), avoiding any compactions and just deleting old data
> brings lot of performance benefits.
> We should have a compaction policy that can only delete/archive files older
> than TTL and not compact any files.
> Also attaching a patch that can do so.
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