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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17568) Expire region reports in the HMaster
Date Mon, 06 Mar 2017 19:37:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15897899#comment-15897899

Josh Elser commented on HBASE-17568:

bq. Name the class SizeSnapshotWithTimestamp ?

Sure. I was thinking {{Snapshot}} implied a notion of time, but that's very well just me :)

bq. The method can be package private.

Good call. Will change.

> Expire region reports in the HMaster
> ------------------------------------
>                 Key: HBASE-17568
>                 URL: https://issues.apache.org/jira/browse/HBASE-17568
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: HBASE-16961
>         Attachments: HBASE-17568.001.patch, HBASE-17568.002.HBASE-16961.patch
> (From a TODO)
> The RegionServers send reports of sizes from to the Master so the Master can compute
the "size" of each Table.
> Presently, the Master has no way to expire these reports. Thus, reports for tables that
are deleted would be retained in memory. Retain the time at which the report was received
by the master, and then use that to determine when to age it off.

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