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I have cloudera CDH5 running inside a virtual box.

when I try to run :

mahout spark-itemsimilarity ....

I get the error:

Unknown program 'spark-itemsimilarity' chosen.

Do i have to install any additional package to run the spark-similarity?

Any help would be appreciated !

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  • $\begingroup$ What version of Mahout are you using? I think that Spark job execution supported was provided since Mahout 0.10. $\endgroup$
    – Shagun Sodhani
    Commented May 18, 2016 at 9:47
  • $\begingroup$ The output of 'rpm -qa | grep mahout' is 'mahout-0.9+cdh5.7.0+29-1.cdh5.7.0.p0.79.el6.noarch'. So I guess Cloudera CDH5.7 comes with Mahout 0.9. Is that right? $\endgroup$
    – CrazyBrazilian
    Commented May 18, 2016 at 23:48

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Spark support for Mahout came from Mahout 0.10 release while you are using 0.9 release. So this should explain why you get the unknown program error. I would suggest using a higher version of Mahout.

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  • $\begingroup$ Cloudera only ships with 0.9+ however Mahout doesn't require complicated configs. Simply download Mahout and make sure SPARK_HOME is set properly in the env variables and it should work. (better yet- please call your CDH rep, and tell them you want Mahout 0.13.0) $\endgroup$
    – rawkintrevo
    Commented Jul 16, 2017 at 4:51

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