Wellington Chevreuil created HBASE-29568:
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Summary: 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
Reporter: Wellington Chevreuil
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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