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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16010) Put draining function through Admin API
Date Tue, 22 Nov 2016 20:08:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15687746#comment-15687746
] 

Hadoop QA commented on HBASE-16010:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 4s {color} | {color:red}
HBASE-16010 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/0.3.0/precommit-patchnames
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12811470/hbase-16010-v1.patch
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| JIRA Issue | HBASE-16010 |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/4577/console |
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This message was automatically generated.



> 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
>         Attachments: hbase-16010-v1.patch
>
>
> 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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