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https://issues.apache.org/jira/browse/HBASE-16961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15989296#comment-15989296
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Josh Elser commented on HBASE-16961:
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bq. As superuser I'd like to be able to do anything even if it (temporarily)
violates a quota. Of course, the namespace/table for which the quota has been
violated is now less useful for users depending on violation policy. That's
fine. I'd clean that up as the last step of the set of administrative actions
underway.
Alright. My gut reaction is that I could write some tests to investigate some
corner cases (e.g. add compression + compact a table) as a superuser. Will add
a new child task for this one.
bq. Do we need the observer then? Make it part of core? Makes configuration
simpler. I can see this as something you'd overlook until it is too late, then
apply, then have to do maybe a lot of time consuming cleanup.
Yeah, I like this. Can hook it into the existing global toggle for quota
support. Will open child-task as well.
> FileSystem Quotas
> -----------------
>
> Key: HBASE-16961
> URL: https://issues.apache.org/jira/browse/HBASE-16961
> Project: HBase
> Issue Type: New Feature
> Reporter: Josh Elser
> Assignee: Josh Elser
> Attachments: hbase-quota-test.sh
>
>
> Umbrella issue for tracking the filesystem utilization of HBase data,
> defining quotas on that utilization, and enforcement when utilization exceeds
> the limits of the quota.
> At a high level: we can define quotas on tables and namespaces. Region size
> is computed by RegionServers and sent to the Master. The Master inspects the
> sizes of Regions, rolling up to table and namespace sizes. Defined quotas in
> the quota table are evaluated given the computed sizes, and, for those
> tables/namespaces violating the quota, RegionServers are informed to take
> some action to limit any further filesystem growth by that table/namespace.
> Discuss:
> https://lists.apache.org/thread.html/66a4b0c3725b5cbdd61dd6111c43847adaeef7b7da5f4cd045df30ef@%3Cdev.hbase.apache.org%3E
> Design Doc:
> http://home.apache.org/~elserj/hbase/FileSystemQuotasforApacheHBase.pdf or
> https://docs.google.com/document/d/1VtLWDkB2tpwc_zgCNPE1ulZOeecF-YA2FYSK3TSs_bw/edit?usp=sharing
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