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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CURATOR-173) InterProcessSemaphoreV2 nodes not reapable
Date Fri, 20 Feb 2015 16:33:11 GMT

    [ https://issues.apache.org/jira/browse/CURATOR-173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14329133#comment-14329133
] 

ASF GitHub Bot commented on CURATOR-173:
----------------------------------------

Github user dkesler commented on the pull request:

    https://github.com/apache/curator/pull/67#issuecomment-75267881
  
    Just wondering if anyone has had a chance to take a look at this yet or had any feedback.
 


> InterProcessSemaphoreV2 nodes not reapable
> ------------------------------------------
>
>                 Key: CURATOR-173
>                 URL: https://issues.apache.org/jira/browse/CURATOR-173
>             Project: Apache Curator
>          Issue Type: Bug
>            Reporter: David Kesler
>            Assignee: Jordan Zimmerman
>
> The curator documentation recommends using a reaper or childreaper to clean up stale
lock nodes.  This worked for InterProcessSemaphore locks.  However lock paths that are created
by InterProcessSemaphoreV2 cannot be reaped.  The V2 recipe creates two subnodes beneath the
lock node, 'locks' and 'leases', which are never cleaned up by the recipe.  This ensures that
the lock node itself will never be empty and thus never reaped.  It doesn't seem like there's
any safe way of handling cleaning up after an InterProcessSemaphoreV2 using canonical curator
recipes.  



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