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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10994) HBase Multi-Tenancy
Date Wed, 16 Apr 2014 04:10:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13970401#comment-13970401

Matteo Bertozzi commented on HBASE-10994:

{quote}What happens if there is a quota on a namespace, and quotas on tables within?{quote}
The quota on the table has the priority, but is part of the namespace.
e.g. let say that you limit the Namespace to 10Gb, you can enforce a limit on the table between
1 and 10G and the other tables will get what remains

> HBase Multi-Tenancy
> -------------------
>                 Key: HBASE-10994
>                 URL: https://issues.apache.org/jira/browse/HBASE-10994
>             Project: HBase
>          Issue Type: Umbrella
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>              Labels: multitenancy, quota
> Currently HBase treats all tables, users, and workloads in the same way.
> This is ok, until multiple users and workloads are applied on the same cluster/table.
Some workloads/users must be prioritized over others, and some other workloads must not impact
> We can separate the problem into three components.
>  * Isolation/Partitioning (Physically split on different machines)
>  * Scheduling (Prioritize small/interactive workloads vs long/batch workloads)
>  * Quotas (Limit a user/table requests/sec or size)
> This is the umbrella jira tracking the multi-tenancy related tasks.
> An initial design document is up for comments here: https://docs.google.com/document/d/1ygIwZpDWQuMPdfcryckic6ODi5DHQkrzXKjmOJodfs0

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