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From Yang Song <xfil...@gmail.com>
Subject Re: Cassandra 1.20 with Cloudera Hadoop (CDH4) Compatibility Issue
Date Sat, 16 Feb 2013 05:48:26 GMT
It is interesting though. I am using CDH4 which contains hadoop 0.20, and I
am using Cassandra 1.20.
The previous mentioned errors still occur. Any suggestions? Thanks.

2013/2/15 Michael Kjellman <mkjellman@barracuda.com>

> That bug is kinda wrong though. 1.0.x is current for like a year now and
> C* works great with it :)
>
> On Feb 15, 2013, at 7:38 PM, "Dave Brosius" <dbrosius@mebigfatguy.com>
> wrote:
>
> see https://issues.apache.org/jira/browse/CASSANDRA-5201
>
>
> On 02/15/2013 10:05 PM, Yang Song wrote:
>
>   Hi,
>
>  Does anyone use CDH4's Hadoop with Cassandra to interact? The goal is
> simply read/write to Cassandra from Hadoop direclty using
> ColumnFamilyInput(Output)Format, but seems a bit compatibility issue. There
> are two java exceptions
>
>  1. java.lang.IncompatibleClassChangeError: Found interface
> org.apache.hadoop.mapreduce.JobContext, but class was expected
> This shows when I run hadoop jar file to read directly from Cassandra.
> Seems that there is a change on Hadoop that JobContext was changed from
> class to interface. Has anyone have similar issue?
> Does it mean the Hadoop version in CDH4 is old?
>
>  2. Another error is java.lang.NoSuchMethodError:
> org.apache.cassandra.hadoop.ConfigHelper.setRpcPort(Lorg/apache/hadoop/conf/Configuration;Ljava/lang/String;)V
> This shows when the jar file contains rpc port for remote Cassandra
> cluster.
>
>  Does anyone have similiar experience? Any comments are welcome. thanks!
>
>
>

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