[
https://issues.apache.org/jira/browse/MAHOUT-414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jeff Eastman resolved MAHOUT-414.
---------------------------------
Assignee: Jeff Eastman
Resolution: Fixed
All the clustering applications now use AbstractJob which supports the -D
arguments for configuring Hadoop. All now call getConf() so that this parameter
is handled correctly from the CLI, and numReducers option has been removed.
Marking as closed.
> Usability: Mahout applications need a consistent API to allow users to
> specify desired map/reduce concurrency
> -------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-414
> URL: https://issues.apache.org/jira/browse/MAHOUT-414
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.3
> Reporter: Jeff Eastman
> Assignee: Jeff Eastman
> Fix For: 0.4
>
>
> If specifying the number of mappers and reducers is a common activity which
> users need to perform in running Mahout applications on Hadoop clusters then
> we need to have a standard way of specifying them in our APIs without
> exposing the full set of Hadoop options, especially for our non-power-users.
> This is the case for some applications already but others require the use of
> Hadoop-level -D arguments to achieve reasonable out-of-the-box parallelism
> even when running our examples. The usability defect is that some of our
> algorithms won't scale without it and that we don't have a standard way to
> express this in our APIs.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
