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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8410) Basic quota support for namespaces
Date Mon, 30 Mar 2015 19:01:55 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HBASE-8410:
---------------------------------
    Release Note: 
Namespace auditor provides basic quota support for namespaces in terms of number of tables
and number of regions. In order to use namespace quotas, quota support must be enabled by
setting
"hbase.quota.enabled" property to true in hbase-site.xml file.

The users can add quota information to namespace, while creating new namespaces or by altering
existing ones. 

Examples:
1. create_namespace 'ns1', {'hbase.namespace.quota.maxregions'=>'10'}
2. create_namespace 'ns2', {'hbase.namespace.quota.maxtables'=>'2','hbase.namespace.quota.maxregions'=>'5'}
3. alter_namespace 'ns3', {METHOD => 'set', 'hbase.namespace.quota.maxtables'=>'5','hbase.namespace.quota.maxregions'=>'25'}

The quotas can be modified/added to namespace at any point of time. To remove quotas, the
following command can be used: 

alter_namespace 'ns3', {METHOD => 'unset', 'hbase.namespace.quota.maxtables'}
alter_namespace 'ns3', {METHOD => 'unset', 'hbase.namespace.quota.maxregions'} 

  was:
Namespace auditor provides basic quota support for namespaces in terms of number of tables
and number of regions. In order to use namespace quotas, quota support must be enabled by
setting
"hbase.quota.enabled" property to true in hbase-site.xml file.

The users can add quota information to namespace, while creating new namespaces or by altering
existing ones. 

Examples:
1. create_namespace 'ns1', {'hbase.namespace.quota.maxregions'=>'10'}
2. create_namespace 'ns2', {'hbase.namespace.quota.maxtables'=>'2','hbase.namespace.quota.maxregion'=>'5'}
3. alter_namespace 'ns3', {METHOD => 'set', 'hbase.namespace.quota.maxtables'=>'5','hbase.namespace.quota.maxregion'=>'25'}

The quotas can be modified/added to namespace at any point of time. To remove quotas, the
following command can be used: 

alter_namespace 'ns3', {METHOD => 'unset', 'hbase.namespace.quota.maxtables'}
alter_namespace 'ns3', {METHOD => 'unset', 'hbase.namespace.quota.maxregions'} 


> Basic quota support for namespaces
> ----------------------------------
>
>                 Key: HBASE-8410
>                 URL: https://issues.apache.org/jira/browse/HBASE-8410
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Francis Liu
>            Assignee: Vandana Ayyalasomayajula
>             Fix For: 2.0.0
>
>         Attachments: 8410-master.9.patch, HBASE-8410-master.1.patch, HBASE-8410-master.4.patch,
HBASE-8410-master.5.patch, HBASE-8410-master.6.patch, HBASE-8410-master.7.patch, HBASE-8410-master.9.patch,
HBASE-8410-master.patch, HBASE-8410.docx, HBASE-8410_trunk_14.patch
>
>
> This task involves creating an observer which provides basic quota support to namespaces
in terms of (1) number of tables and (2) number of regions. The quota support can be enabled
by setting:
> <property>
>     <name>hbase.coprocessor.region.classes</name>
>     <value>org.apache.hadoop.hbase.namespace.NamespaceController</value>
> </property>
> <property>
>     <name>hbase.coprocessor.master.classes</name>
>     <value>org.apache.hadoop.hbase.namespace.NamespaceController</value>
> </property>
> in the hbase-site.xml.
> To add quotas to namespace, while creating namespace properties need to be added.
> Examples:
> 1. namespace_create 'ns1', {'hbase.namespace.quota.maxregion'=>'10'}
> 2. 1. namespace_create 'ns2', {'hbase.namespace.quota.maxtables'=>'2'}, {'hbase.namespace.quota.maxregion'=>'5'}
> The quotas can be modified/added to namespace at any point of time. 



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