mahout-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Suneel Marthi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAHOUT-1637) RecommenderJob of ALS fails in the mapper because it uses the instance of other class
Date Sun, 10 Apr 2016 06:07:25 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suneel Marthi resolved MAHOUT-1637.
-----------------------------------
    Resolution: Cannot Reproduce

There's been no update on this issue and have not heard back from the original poster. This
is to do with legacy code, resolving this as 'Cannot Reproduce'.
Please feel free to open a new Jira along with the steps to recreate the same.

> RecommenderJob of ALS fails in the mapper because it uses the instance of other class
> -------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-1637
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1637
>             Project: Mahout
>          Issue Type: Bug
>          Components: Collaborative Filtering
>    Affects Versions: 0.9
>            Reporter: Cristian Galán
>            Assignee: Andrew Musselman
>              Labels: als, collaborative-filtering, legacy
>             Fix For: 0.12.0
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> In the map method of PredictionMapper when executes the next line:       Pair<OpenIntObjectHashMap<Vector>,
OpenIntObjectHashMap<Vector>> uAndM = getSharedInstance();
> the job fail because obtains the instance of other class. This occurs because I launch
a local job, so the instance exists previously and for this doesn't make the new correct instance
for ALS.
> The solution that it works me is to add the next line:.
>         SharingMapper.reset();
> in method run of JobRecommender of org.apache.mahout.cf.taste.hadoop.als package 
> I have to test it in my environment with distributed mapreduce, hadoop fs, zookeeper
and others if it works correctly.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message