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From Nate McCall <n...@thelastpickle.com>
Subject Re: Unable to run hadoop_cql3_word_count examples
Date Mon, 09 Dec 2013 15:34:20 GMT
If you got that error on an unmodified example from the latest source,
please open an issue:
https://issues.apache.org/jira/browse/CASSANDRA


On Sun, Dec 8, 2013 at 8:00 PM, Parth Patil <parthpatil@gmail.com> wrote:

> 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
>



-- 
-----------------
Nate McCall
Austin, TX
@zznate

Co-Founder & Sr. Technical Consultant
Apache Cassandra Consulting
http://www.thelastpickle.com

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