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From "Matt Warhaftig (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-16010) Put draining function through Admin API
Date Sat, 11 Jun 2016 14:44:21 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt Warhaftig reassigned HBASE-16010:
--------------------------------------

    Assignee: Matt Warhaftig

> Put draining function through Admin API
> ---------------------------------------
>
>                 Key: HBASE-16010
>                 URL: https://issues.apache.org/jira/browse/HBASE-16010
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jerry He
>            Assignee: Matt Warhaftig
>            Priority: Minor
>
> Currently, there is no Amdin API for draining function. Client has to interact directly
with Zookeeper draining node to add and remove draining servers.
> For example, in draining_servers.rb:
> {code}
>   zkw = org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.new(config, "draining_servers",
nil)
>   parentZnode = zkw.drainingZNode
>   begin
>     for server in servers
>       node = ZKUtil.joinZNode(parentZnode, server)
>       ZKUtil.createAndFailSilent(zkw, node)
>     end
>   ensure
>     zkw.close()
>   end
> {code}
> This is not good in cases like secure clusters with protected Zookeeper nodes.
> Let's put draining function through Admin API.



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