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From "Jordan Zimmerman (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 17:30:51 GMT


Jordan Zimmerman commented on CURATOR-50:

This same problem would happen with the raw ZooKeeper handle as well, right? If so, I view
this as beyond the scope of Curator. You can easily use an EnsurePath object to make sure
the parent path is created.
> 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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