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From Parth Patil <parthpa...@gmail.com>
Subject Re: Unable to run hadoop_cql3_word_count examples
Date Mon, 09 Dec 2013 02:00:37 GMT
Hi Aaron,
Thanks for your response. I didn't make any change to the code when I got
that exception. I just ran the example as is after I cloned the repo from
github.

I did a git pull today on cassandra-2.0 branch, built via ant and re-ran
the example and now I am not getting the error from before but I am now
getting the following error as shown in this gist
https://gist.github.com/parth-patil/7864738




On Sun, Dec 8, 2013 at 11:30 AM, Aaron Morton <aaron@thelastpickle.com>wrote:

> InvalidRequestException(why:consistency level LOCAL_ONE not compatible
> with replication strategy (org.apache.cassandra.locator.SimpleStrategy)) at
>
> The LOCAL_ONE consistency level can only be used with the
> NetworkTopologyStrategy.
>
> I had a quick look and the code does not use LOCAL_ONE, did you make a
> change?
>
> Cheers
>
> -----------------
> Aaron Morton
> New Zealand
> @aaronmorton
>
> Co-Founder & Principal Consultant
> Apache Cassandra Consulting
> http://www.thelastpickle.com
>
> On 3/12/2013, at 10:03 pm, Parth Patil <parthpatil@gmail.com> wrote:
>
> Hi,
> I am new to Cassandra and I am exploring the Hadoop integration
> (MapReduce) provided by Cassandra.
>
> I am trying to run the hadoop examples provided in the cassandra's repo
> under examples/hadoop_cql3_word_count. I am using the cassandra-2.0 branch.
> I have a single node cassandra running locally. I was able to run the
> ./bin/word_count_setup step successfully but when I run the
> ./bin/word_count step I am getting the following error :
>
> java.lang.RuntimeException at
> org.apache.cassandra.hadoop.cql3.CqlPagingRecordReader$RowIterator.executeQuery(CqlPagingRecordReader.java:661)
> at
> org.apache.cassandra.hadoop.cql3.CqlPagingRecordReader$RowIterator.(CqlPagingRecordReader.java:297)
> at
> org.apache.cassandra.hadoop.cql3.CqlPagingRecordReader.initialize(CqlPagingRecordReader.java:163)
> at
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:522)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763) at
> org.apache.hadoop.mapred.MapTask.run(MapTask.java:370) at
> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
> Caused by: InvalidRequestException(why:consistency level LOCAL_ONE not
> compatible with replication strategy
> (org.apache.cassandra.locator.SimpleStrategy)) at
> org.apache.cassandra.thrift.Cassandra$execute_prepared_cql3_query_result$execute_prepared_cql3_query_resultStandardScheme.read(Cassandra.java:52627)
> at
> org.apache.cassandra.thrift.Cassandra$execute_prepared_cql3_query_result$execute_prepared_cql3_query_resultStandardScheme.read(Cassandra.java:52604)
> at
> org.apache.cassandra.thrift.Cassandra$execute_prepared_cql3_query_result.read(Cassandra.java:52519)
> at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78) at
> org.apache.cassandra.thrift.Cassandra$Client.recv_execute_prepared_cql3_query(Cassandra.java:1785)
> at
> org.apache.cassandra.thrift.Cassandra$Client.execute_prepared_cql3_query(Cassandra.java:1770)
> at
> org.apache.cassandra.hadoop.cql3.CqlPagingRecordReader$RowIterator.executeQuery(CqlPagingRecordReader.java:631)
> ... 6 more
> ------------------------------
>
> Has anyone seen this before ? Am I missing something ?
>
> --
> Best,
> Parth
>
>
>


-- 
Best,
Parth

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