Add a Cassandra client gadget
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                 Key: AMDATU-253
                 URL: http://jira.amdatu.org/jira/browse/AMDATU-253
             Project: Amdatu
          Issue Type: New Feature
          Components: Amdatu Cassandra
    Affects Versions: 0.1.0
            Reporter: Ivo Ladage - van Doorn


It would be quite useful if a gadget would be available providing a command 
line interface on the Cassandra database. Note that cassandra 0.7 does come 
with a command line interface (cassandra-cli), but this client cannot be used 
with Amdatu because of an OutOfMemory error upon startup. This seems to be a 
known but 'wont't fix' issue. 
This exact issue is described on 
http://www.apacheserver.net/Cassandra-OutOfMemoryError-at1059212.htm
The answer however is a bit disappointing;

don't use raw Thrift, use one of the clients from 
http://wiki.apache.org/cassandra/ClientOptions06

The referred clients are API libraries, no command line interfaces. Besides, 
cassandra-cli is distributed among with cassandra.
A client should support at least some simple queries like;

- Retrieve keyspaces
- Retrieve ColumnFamily definitions
- Retrieve all rows from a certain columnfamily

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