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https://issues.apache.org/jira/browse/ZOOKEEPER-2169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15559759#comment-15559759
 ] 

Hadoop QA commented on ZOOKEEPER-2169:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  
http://issues.apache.org/jira/secure/attachment/12832340/ZOOKEEPER-2169-8.patch
  against trunk revision df5519ab9dac9940f35cc4b308b560f2603aec7f.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 4 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: 
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3470//console

This message is automatically generated.

> Enable creation of nodes with TTLs
> ----------------------------------
>
>                 Key: ZOOKEEPER-2169
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2169
>             Project: ZooKeeper
>          Issue Type: New Feature
>          Components: c client, java client, jute, server
>    Affects Versions: 3.6.0
>            Reporter: Camille Fournier
>            Assignee: Jordan Zimmerman
>             Fix For: 3.6.0
>
>         Attachments: ZOOKEEPER-2169-2.patch, ZOOKEEPER-2169-3.patch, 
> ZOOKEEPER-2169-4.patch, ZOOKEEPER-2169-5.patch, ZOOKEEPER-2169-6.patch, 
> ZOOKEEPER-2169-7.patch, ZOOKEEPER-2169-8.patch, ZOOKEEPER-2169.patch
>
>
> As a user, I would like to be able to create a node that is NOT tied to a 
> session but that WILL expire automatically if action is not taken by some 
> client within a time window.
> I propose this to enable clients interacting with ZK via http or other "thin 
> clients" to create ephemeral-like nodes.
> Some ideas for the design, up for discussion:
> The node should support all normal ZK node operations including ACLs, 
> sequential key generation, etc, however, it should not support the ephemeral 
> flag. The node will be created with a TTL that is updated via a refresh 
> operation. 
> The ZK quorum will watch this node similarly to the way that it watches for 
> session liveness; if the node is not refreshed within the TTL, it will expire.
> QUESTIONS:
> 1) Should we let the refresh operation set the TTL to a different base value?
> 2) If so, should the setting of the TTL to a new base value cause a watch to 
> fire?
> 3) Do we want to allow these nodes to have children or prevent this similar 
> to ephemeral nodes?



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