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https://issues.apache.org/jira/browse/TWILL-104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14178648#comment-14178648
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Terence Yim commented on TWILL-104:
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Currently Twill uses ZooKeeper chroot ability to have namespacing
([http://zookeeper.apache.org/doc/r3.4.6/zookeeperProgrammers.html#ch_zkSessions]).
For example if you specify the zkConnectStr as:
{{my.zk.host:2181/twill}}
Then Twill will only operates on nodes under the "/twill" folder.
Is that something you are looking for or something more than that?
Terence
> Enable users to specify a different node than root of Zookeeper for Twill
> application data
> ------------------------------------------------------------------------------------------
>
> Key: TWILL-104
> URL: https://issues.apache.org/jira/browse/TWILL-104
> Project: Apache Twill
> Issue Type: Improvement
> Components: yarn
> Affects Versions: 0.3.0-incubating, 0.4.0-incubating, 0.5.0-incubating
> Reporter: Mike Walch
>
> In YarnTwillRunnerService.watchLiveApps(), all child nodes of the Zookeeper
> root are considered Twill applications and are watched for changes. On a
> cluster, other non-twill applications could be storing data in the same
> zookeeper. It would be better if "/twill" was used for the root or if users
> could specify another root path in Zookeeper for Twill data. Watching the
> Zookeeper nodes of non-twill applications could be causing the delay seen in
> TWILL-103.
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