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From "Jordan Zimmerman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CURATOR-50) CreateBuilderImpl fails on forPath if connectString features a chroot that does not already exist.
Date Tue, 20 Aug 2013 18:04:51 GMT

    [ https://issues.apache.org/jira/browse/CURATOR-50?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13745204#comment-13745204
] 

Jordan Zimmerman commented on CURATOR-50:
-----------------------------------------

Actually, I see your point. Because the connection is in chroot it's hard to create the parent
node. BTW - this is one of many reasons why I added Namespaces to Curator instead of using
the chroot feature. The Curator Namespaces imp is much more flexible.
                
> CreateBuilderImpl fails on forPath if connectString features a chroot that does not already
exist.
> --------------------------------------------------------------------------------------------------
>
>                 Key: CURATOR-50
>                 URL: https://issues.apache.org/jira/browse/CURATOR-50
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: 2.1.0-incubating
>            Reporter: Sean-Michael Lewis
>            Priority: Minor
>
> When a CuratorFramework is initialized with a connectString featuring a chroot that does
not already exist in the ensemble, CreateBuilderImpl will fail to create new nodes even if
createParentsIfNeeded is true.
> For example, the following code will result in a org.apache.zookeeper.KeeperException$NoNodeException.
> {code}
> CuratorFramework client = CuratorFramework.builder().retryPolicy(myPolicy).connectString("myServer1:2181,myServer2:2181/chroot).build();
> client.create().createParentsIfNeeded().forPath("test");
> {code}
> This can be worked around by using a namespace in lieu of the chroot or by calling {code}client.create().forPath("/"){code}
before attempting to create any other nodes. 
> While using namespaces is likely the best practice, the framework does initialize with
the chroot connectString. There are also reasons why one might want to use both chroot connectStrings
as well as namespaces (application environments for the former, application for the latter).
> My proposed fix is to alter {code}ZkPaths.mkdirs{code} to not skip "/" when it walks
the tree. In cases where no chroot configured or a chroot that already exists, the node will
be found and skipped. Otherwise, it will be created.

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