[
https://issues.apache.org/jira/browse/HBASE-11130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary Helmling resolved HBASE-11130.
-----------------------------------
Resolution: Duplicate
This was already done long ago.
> Add support for Master endpoint coprocessors
> --------------------------------------------
>
> Key: HBASE-11130
> URL: https://issues.apache.org/jira/browse/HBASE-11130
> Project: HBase
> Issue Type: New Feature
> Components: Coprocessors, master
> Reporter: Gary Helmling
>
> Currently master coprocessors can only function as observers. However, it
> would be useful in some cases, especially with "system" tables moving to be
> served by the master, for master coprocessors to be able to function as
> endpoints. These coprocessors would then have access to master facilities to
> be able to perform custom cluster coordination tasks, for example.
> One example application of this would be for security grant and revoke
> commands, where a master coprocessor could make use of the procedure
> mechanism to ensure that all regionservers acknowledge an update before
> returning success to the client.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
