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Posted to issues@hbase.apache.org by "Chen Jin (JIRA)" <ji...@apache.org> on 2012/12/22 02:23:13 UTC

[jira] [Commented] (HBASE-7416) [89-fb] Tier compaction with fixed boundary option

    [ https://issues.apache.org/jira/browse/HBASE-7416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538623#comment-13538623 ] 

Chen Jin commented on HBASE-7416:
---------------------------------

Liying,

Thanks for letting me know.

Happy holidays!!

Sent from my iPhone



                
>  [89-fb] Tier compaction with fixed boundary option
> ---------------------------------------------------
>
>                 Key: HBASE-7416
>                 URL: https://issues.apache.org/jira/browse/HBASE-7416
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Liyin Tang
>
> Currently, in tier compaction the aged-based algorithm considers HFile's age in disk relative to the current time, thus the tiers are actually shifting along the time. In order to best use our prior information about how applications consume the data, it needs another feature to perceive the tiers relative to a fixed time point.

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