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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-3089) Create a volume chooser that makes decisions based on table attributes
Date Fri, 26 Sep 2014 18:43:34 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-3089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14149784#comment-14149784
] 

ASF GitHub Bot commented on ACCUMULO-3089:
------------------------------------------

Github user keith-turner commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/16#discussion_r18106232
  
    --- Diff: server/base/src/main/java/org/apache/accumulo/server/fs/VolumeChooser.java ---
    @@ -18,5 +18,7 @@
     
     
     public interface VolumeChooser {
    +  String choose(VolumeChooserEnvironment env, String[] options);
    --- End diff --
    
    The user facing property general.volume.chooser allows user to set classes that implement
the existing interface.  That seems to put it in the public API?
    
    One option is to deprecate that property and introduce a new property that uses a new
interface (don't base new interface on current one).   If the old prop is set, could still
use the old class/interface.  If both are set, then error.   


> Create a volume chooser that makes decisions based on table attributes
> ----------------------------------------------------------------------
>
>                 Key: ACCUMULO-3089
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3089
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Christopher Tubbs
>            Assignee: Jenna Huston
>
> Use case:
> User provisions multiple volumes, some with tmpfs drives, some with SSDs, some with traditional
magnetic spindle hard drives. A volume chooser could use attribute information on tables (ACCUMULO-2841)
to decide which volume to choose when creating new tablets.



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