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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-708) Modify ClassLoader to support different applications / multi-tenancy
Date Wed, 14 Nov 2012 03:08:13 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496794#comment-13496794
] 

Josh Elser commented on ACCUMULO-708:
-------------------------------------

bq. AccumuloDFSBase.java line 25 is an import statement. Did you mean line 40 or line 49?

Uhh, my code still says line 25. The actual code I commented out was the following:

{noformat}
  //Turn off the Jetty and MiniDFSCluster logging
  static {
    System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.NoOpLog");
  }
{noformat}

If your umask is 022, then you need to change the code from

{noformat}
conf.set("dfs.datanode.data.dir.perm", "775");
{noformat}

to 

{noformat}
conf.set("dfs.datanode.data.dir.perm", "755");
{noformat}
                
> Modify ClassLoader to support different applications / multi-tenancy
> --------------------------------------------------------------------
>
>                 Key: ACCUMULO-708
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-708
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: start
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>              Labels: classloader
>             Fix For: 1.5.0
>
>         Attachments: ACCUMULO-708-1.patch
>
>   Original Estimate: 24h
>          Time Spent: 33h
>  Remaining Estimate: 0h
>
> I'd like to expand the current classloader to support loading classes from HDFS and different
application contexts. I'll be modifying the ticket as the idea matures.

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