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https://issues.apache.org/jira/browse/HBASE-9817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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He Liangliang updated HBASE-9817:
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Attachment: HBASE-9817.patch
> Add throughput quota and enforce hard limits
> --------------------------------------------
>
> Key: HBASE-9817
> URL: https://issues.apache.org/jira/browse/HBASE-9817
> Project: HBase
> Issue Type: New Feature
> Components: Coprocessors
> Reporter: He Liangliang
> Assignee: He Liangliang
> Attachments: HBASE-9817.patch
>
>
> There is planning to add region count and table count quota mentioned in
> HBASE-8410. However, it's also quite useful to control the requesting
> throughput inside the region server. For example, we don't want a data
> dumping task affecting the online services and it's better to enforce the
> throughput quota inside HBase. Another common scenario is multi-tenancy, i.e.
> a cluster is shared by multiple applications.
> The following rules will be supported:
> 1. per user quota
> limits the total read/write throughput initiated by a single user on any
> table.
> 2. per (user, table) quota
> limits the total read/write throughput initiated by a single user on a
> specified table.
> The implementation will use coprocessor to intercept and check each request
> on each region. And each region server allocate a portion of quota from the
> total specified quota (for that user or user + table) based on the portion of
> active regions (the whole cluster or the specified table) assigned on that
> region server. The request will be rejected or delayed if the limit is
> reached.
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