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From "Sean-Michael Lewis (JIRA)" <>
Subject [jira] [Commented] (CURATOR-50) CreateBuilderImpl fails on forPath if connectString features a chroot that does not already exist.
Date Tue, 20 Aug 2013 18:10:51 GMT


Sean-Michael Lewis commented on CURATOR-50:

I agree. But there are situations where I can see using both. For example, my application
is namespaced with the application name. But logistics make it such that my dev and qa or
on the same ensemble. Since where they are placed isn't really the application's concern,
being able to distinguish them with the chroot is handy. But in this case it might be easier
to handle with puppet. TBD.
> CreateBuilderImpl fails on forPath if connectString features a chroot that does not already
> --------------------------------------------------------------------------------------------------
>                 Key: CURATOR-50
>                 URL:
>             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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