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https://issues.apache.org/jira/browse/MAHOUT-1612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14153324#comment-14153324
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ASF GitHub Bot commented on MAHOUT-1612:
----------------------------------------
GitHub user awmanoj opened a pull request:
https://github.com/apache/mahout/pull/55
MAHOUT-1612: NullPointerException happens during JSON output format for c...
...lusterdumper
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/awmanoj/mahout master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/mahout/pull/55.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #55
----
commit d7bd3f0378298536f4ed215afc8f3d174a54d6ac
Author: Manoj Awasthi <[email protected]>
Date: 2014-09-30T15:51:11Z
MAHOUT-1612 NullPointerException happens during JSON output format for
clusterdumper
----
> NullPointerException happens during JSON output format for clusterdumper
> ------------------------------------------------------------------------
>
> Key: MAHOUT-1612
> URL: https://issues.apache.org/jira/browse/MAHOUT-1612
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.9
> Reporter: Guo Ruijing
>
> 1. download datafile from:
> http://archive.ics.uci.edu/ml/databases/synthetic_control/synthetic_control.data
> 2. put data file on hdfs:
> hdfs dfs -mkdir testdata
> hdfs dfs -put synthetic_control.data testdata/
> 3. run a mahout clustering job:
> mahout org.apache.mahout.clustering.syntheticcontrol.kmeans.Job
> 4. run clusterdump with JSON format:
> mahout clusterdump i output/clusters*-final -p output/clusteredPoints -o
> /tmp/report -of JSON
> expected:
> clusterdump with JSON format should succeeded same as CSV and TEXT
> actually:
> clusterdump with JSON format throw NullPointerException
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