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https://issues.apache.org/jira/browse/HBASE-29568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-29568:
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Fix Version/s: 3.0.0-beta-2
(was: 3.0.0)
> Allow for a configurable "grace period" when using Time Based Priority
> ----------------------------------------------------------------------
>
> Key: HBASE-29568
> URL: https://issues.apache.org/jira/browse/HBASE-29568
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 3.0.0-beta-1, 2.7.0, 2.6.4
> Reporter: Wellington Chevreuil
> Assignee: Deep Golani
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2, 2.6.5
>
>
> This aims to introduce a "grace period" functionality in the bucket cache
> time based priority feature, allowing blocks for the given CF marked for
> grace period to have its age ignored by the time priority logic.
> The use case here is that "cold" data may have to be accessed rarely, by some
> batch jobs, so that in these rare job runs, it can be temporarily placed in
> the cache, then de-prioritised again.
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