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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9864) Notifications bus for use by cluster members keeping up-to-date on changes
Date Tue, 29 Apr 2014 00:58:23 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HBASE-9864:
---------------------------------

    Fix Version/s:     (was: 1.0.0)
                   0.99.0

> Notifications bus for use by cluster members keeping up-to-date on changes
> --------------------------------------------------------------------------
>
>                 Key: HBASE-9864
>                 URL: https://issues.apache.org/jira/browse/HBASE-9864
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.99.0
>
>
> In namespaces and acls, zk callbacks are used so all participating servers are notified
when there is a change in acls/namespaces list.
> The new visibility tags feature coming in copies the same model of using zk with listeners
for the features' particular notifications.
> Three systems each w/ their own implementation of the notifications all using zk w/ their
own feature-specific watchers.
> Should probably unify.
> Do we have to go via zk?  Seems like all want to be notified when an hbase table is updated.
 Could we tell servers directly rather than go via zk?



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