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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-3383) AccumuloVFSClassloader creates conflicting local cache directory names when vfs.cache.dir property is set.
Date Thu, 18 Dec 2014 21:56:16 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-3383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Christopher Tubbs updated ACCUMULO-3383:
----------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 1.6.3)
                   1.6.2
           Status: Resolved  (was: Patch Available)

Applied.

> AccumuloVFSClassloader creates conflicting local cache directory names when vfs.cache.dir
property is set.
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: ACCUMULO-3383
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3383
>             Project: Accumulo
>          Issue Type: Bug
>          Components: start
>    Affects Versions: 1.6.1
>            Reporter: Drew Farris
>            Assignee: Drew Farris
>            Priority: Minor
>             Fix For: 1.6.2, 1.7.0
>
>         Attachments: ACCUMULO-3383-1.patch, ACCUMULO-3383.patch
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> When the vfs.cache.dir property is not set, the AccumuloVFSClassloader will use java.io.tmpdir
as a base directory for the local cache of jars and then generate a unique directory name
using a combination of the processid, hostname and userid executing the JVM.
> When the vfs.cache.dir property is set, that value is used as the base directory and
 an attempt to generate a unique directory is made using an AtomicInteger. This isn't suitable
because for non-long lived processes, this will always be 1 - and there's a good chance that
directory already exists and is owned by another user, and not writable to by the user in
question. 
> This leads to a failure of the invoked accumulo component to start.
> Modify the behavior of the unique directory creation when vfs.cache.dir is set so that
it employs the same mechanism for unique directory naming that is used when it is not set.



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