Mailing-List: contact dev-help@curator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@curator.apache.org
Date: Fri, 22 Dec 2017 05:23:00 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
To: dev@curator.apache.org
Message-ID: <JIRA.13046514.1488150210000.517041.1513920180221@Atlassian.JIRA>
In-Reply-To: <JIRA.13046514.1488150210000@Atlassian.JIRA>
References: <JIRA.13046514.1488150210000@Atlassian.JIRA> <JIRA.13046514.1488150210580@jira-lw-us.apache.org>
Subject: [jira] [Commented] (CURATOR-388) PathChildrenCache stops working if
 container node is auto-removed and later recreated
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Fri, 22 Dec 2017 05:23:10 -0000


    [ https://issues.apache.org/jira/browse/CURATOR-388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300968#comment-16300968 ] 

ASF GitHub Bot commented on CURATOR-388:
----------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/curator/pull/249


> PathChildrenCache stops working if container node is auto-removed and later recreated
> -------------------------------------------------------------------------------------
>
>                 Key: CURATOR-388
>                 URL: https://issues.apache.org/jira/browse/CURATOR-388
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Recipes
>    Affects Versions: 3.2.1
>         Environment: zookeeper 3.5.2-alpha
>            Reporter: Rhys Yarranton
>            Assignee: Jordan Zimmerman
>             Fix For: 4.0.1
>
>         Attachments: EmptyPathChildrenCacheTest.java
>
>
> PathChildrenCache uses EnsureContainers to create the path as a container(if it does not already exist).  If at some point that container is empty, ZooKeeper may remove it.  If at some later point the path is recreated and a child node added, the PathChildrenCache will not detect it.  No event will be fired, nor will the child node appear in getCurrentData().
> The attached test reproduces the problem most of the time if the ZooKeeper server has znode.container.checkIntervalMs reduced to 1000.
> A workaround is to explicitly create the path as a non-container before starting the PathChildrenCache.
> NB there are two related problems here.  One is that it has trouble handling containers.  More serious is that it creates a container, thus running itself into trouble.


--
This message was sent by Atlassian JIRA
(v6.4.14#64029)