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From Jonathan Haddad <>
Subject Re: multiple dependency jars using pyspark
Date Mon, 10 Aug 2015 15:35:25 GMT
I figured out the issue - it had to do with the Cassandra jar I had
compiled.  I had tested a previous version.  Using --jars (comma separated)
and --driver-class-path (colon separated) is working.

On Mon, Aug 10, 2015 at 1:08 AM ayan guha <> wrote:

> Easiest way should be to add both jars in SPARK_CLASSPATH as a colon
> separated string.
> On 10 Aug 2015 06:20, "Jonathan Haddad" <> wrote:
>> I'm trying to write a simple job for Pyspark 1.4 migrating data from
>> MySQL to Cassandra.  I can work with either the MySQL JDBC jar or the
>> cassandra jar separately without issue, but when I try to reference both of
>> them it throws an exception:
>> Py4JJavaError: An error occurred while calling
>> : java.lang.NoSuchMethodError:
>> scala.Predef$.$conforms()Lscala/Predef$$less$colon$less;
>> I'm not sure if I'm including the jars correctly as --jars says it's
>> comma separated and --driver-class-path seems to take a colon delimited
>> classpath.  If I separate the list in --driver-class-path with a comma, i
>> get a class not found exception so I'm thinking colon is right.
>> The job, params for submission, and exception are here.  Help getting
>> this going would be deeply appreciated.

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