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From "Mahadev konar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-1027) chroot not transparent in zoo_create()
Date Thu, 07 Jul 2011 06:37:16 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-1027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mahadev konar updated ZOOKEEPER-1027:
-------------------------------------

    Attachment: ZOOKEEPER-1027-TRUNK_WITH_TESTS.patch

Updated patch to apply on trunk. Thijis can you please take a look and see in case I missed
something? 

I didnt get a chance to run the tests since I currently dont have access to a linux box.

> chroot not transparent in zoo_create()
> --------------------------------------
>
>                 Key: ZOOKEEPER-1027
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1027
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: c client
>    Affects Versions: 3.3.3
>         Environment: Linux, ZooKeeper 3.3.3, C-client, java 1.6.0_17-b04, hotspot server
vm
>            Reporter: Thijs Terlouw
>            Assignee: Thijs Terlouw
>             Fix For: 3.4.0
>
>         Attachments: ZOOKEEPER-1027-TRUNK_WITH_TESTS.patch, ZOOKEEPER-1027-TRUNK_WITH_TESTS.patch,
ZOOKEEPER-1027-TRUNK_WITH_TESTS.patch
>
>
> I've recently started to use the chroot functionality (introduced in
> 3.2.0) as part of my connect string.It mostly works as expected, but
> there is one case that is unexpected: when I create a path with
> zoo_create() I can retrieve the created path. This is very useful when
> you set the ZOO_SEQUENCE flag. Unfortunately the returned path
> includes the chroot as part of the path. This was unexpected to me: I
> expected that the chroot would be totally transparent. The
> documentation for zoo_create() says:
> "path_buffer : Buffer which will be filled with the path of the new
> node (this might be different than the supplied path because of the
> ZOO_SEQUENCE flag)."
> This gave me the impression that this flag is the only reason the
> returned path is different from the created path, but apparently it's
> not. Is this a bug or intended behavior? 
> I workaround this issue now by remembering the chroot in
> my wrapper code and after a call to zoo_create() i check if the returned
> path starts with the chroot. If it does, I remove it.
> My use case is to create a path with a sequence number and then delete
> this path later. Unfortunately I cannot delete the path because it has
> the chroot prepended to it, and thus it will result in two chroots.
> I believe this only affects the create functions.

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