word_count example in Cassandra 0.8.0

[Markus Mock <ma...@gmail.com>]

Hello,

I am running into the following problem:  I am running a single node
cassandra setup (out of the box so to speak) and was trying out the code
in apache-cassandra-0.8.0-src/examples/hadoop_word_count.

The bin/word_count_setup seems to work fine as cassandra-cli reports that
there are 1000 rows when I do

list input_words limit 2000;
(after connecting via connect 127.0.01/9160 and use wordcount;)

However, after running bin/word_count it seems the reducer is not writing
into cassandra as list output_words returns 0 rows.
When setting the output reducer to filesystem I get results in
/tmp/word_count0 /tmp/word_count1 etc .

Has anybody observed the same problem and has an idea what might be wrong?

Thanks.

  -- Markus

Re: word_count example in Cassandra 0.8.0

[Jonathan Ellis <jb...@gmail.com>]

fixed in 0.8.1.  https://issues.apache.org/jira/browse/CASSANDRA-2727

On Thu, Jun 30, 2011 at 3:09 AM, Markus Mock <ma...@gmail.com> wrote:
> Hello,
> I am running into the following problem:  I am running a single node
> cassandra setup (out of the box so to speak) and was trying out the code
> in apache-cassandra-0.8.0-src/examples/hadoop_word_count.
> The bin/word_count_setup seems to work fine as cassandra-cli reports that
> there are 1000 rows when I do
> list input_words limit 2000;
> (after connecting via connect 127.0.01/9160 and use wordcount;)
> However, after running bin/word_count it seems the reducer is not writing
> into cassandra as list output_words returns 0 rows.
> When setting the output reducer to filesystem I get results in
> /tmp/word_count0 /tmp/word_count1 etc .
> Has anybody observed the same problem and has an idea what might be wrong?
> Thanks.
>   -- Markus
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com