[jira] [Resolved] (ACCUMULO-2449) user's can't specify VFS_CLASSLOADER_CACHE_DIR with system variables like the default

["Christopher Tubbs (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-2449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Tubbs resolved ACCUMULO-2449.
-----------------------------------------
    Resolution: Won't Fix

The classloader stuff was reworked in 2.1, so this is OBE. If there is more to be done for this, please open a new issue or PR at https://github.com/apache/accumulo-classloaders

> user's can't specify VFS_CLASSLOADER_CACHE_DIR with system variables like the default
> -------------------------------------------------------------------------------------
>
>                 Key: ACCUMULO-2449
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2449
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: start
>            Reporter: John Vines
>            Priority: Minor
>
> via code analysis-
> VFS_CLASSLOADER_CACHE_DIR's key is defined in AccumnuloVFSClassLoader. However, it explicitly declares it's value in the same format as it's created, rather then using a String defined in AccumuloVFSClassloader as well. This could lead to schisming.
> But more importantly, AccumuloVFSClassloaders builds that path by extracting system properties to build the path. If a user declares the default value ({{$java.io.tmpdir/accumulo-cfs-cache-$\{user.name\}}}), it will not work as intended. I'm fairly certain if I put that value in my accumulo-site, it won't get broken down in the same way. Default values should behave the same way as both the default value and being declared in the site.xml



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