[jira] [Resolved] (MAHOUT-1486) Streaming KMeans NPE

["Suneel Marthi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-1486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suneel Marthi resolved MAHOUT-1486.
-----------------------------------

       Resolution: Duplicate
    Fix Version/s: 1.0
         Assignee: Suneel Marthi

Resolving this as Duplicate of M-1469

> Streaming KMeans NPE
> --------------------
>
>                 Key: MAHOUT-1486
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1486
>             Project: Mahout
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 0.8
>            Reporter: Reinis Vicups
>            Assignee: Suneel Marthi
>             Fix For: 1.0
>
>
> I am assuming that this occurs because of  --reduceStreamingKMeans (-rskm) option set. Will try and test it without reduce and report if the NPE goes away.
> Error: java.lang.NullPointerException
>         at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:187)
>         at org.apache.mahout.math.random.WeightedThing.<init>(WeightedThing.java:31)
>         at org.apache.mahout.math.neighborhood.BruteSearch.searchFirst(BruteSearch.java:127)
>         at org.apache.mahout.clustering.ClusteringUtils.estimateDistanceCutoff(ClusteringUtils.java:116)
>         at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansThread.call(StreamingKMeansThread.java:63)
>         at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer.reduce(StreamingKMeansReducer.java:55)
>         at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer.reduce(StreamingKMeansReducer.java:35)
>         at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:171)
>         at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627)
>         at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389)
>         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:165)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:160)



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