to elaborate, your row key is a uuid, but not your column name
On Wed, May 5, 2010 at 4:46 AM, roger schildmeijer
<schildmei...@gmail.com> wrote:
> "'CompareWith' tells Cassandra how to sort the columns for slicing
> operations". It looks like your column name isn't using the correct type
> (TimeUUIDType).
>
> // Roger Schildmeijer
>
> On Wed, May 5, 2010 at 11:34 AM, Shuge Lee <shuge....@gmail.com> wrote:
>>
>> Hi all:
>>
>> in storage-conf.xml
>> ...
>>
>> <Keyspace Name="t">
>> <ColumnFamily CompareWith="UTF8Type" Name="tt" />
>>
>> <ReplicaPlacementStrategy>org.apache.cassandra.locator.RackUnawareStrategy</ReplicaPlacementStrategy>
>> <ReplicationFactor>1</ReplicationFactor>
>>
>> <EndPointSnitch>org.apache.cassandra.locator.EndPointSnitch</EndPointSnitch>
>>
>> <ColumnFamily Name="tt"
>> CompareWith="TimeUUIDType" />
>> </Keyspace>
>> ...
>>
>> Python code
>> #!/usr/bin/env python
>>
>> import uuid
>> from pprint import pprint as pp
>>
>> import pycassa
>> from cassandra.ttypes import ConsistencyLevel
>>
>> keyspace = 't'
>> column_family = 'tt'
>> write_consistency_level = ConsistencyLevel.ONE
>>
>> cli = pycassa.connect()
>> cf = pycassa.ColumnFamily(cli, keyspace, column_family)
>>
>> key = uuid.uuid4().bytes_le
>> columns = {'subject': 'a'}
>> cf.insert(key, columns, write_consistency_level)
>>
>> Traceback
>>
>> Traceback (most recent call last):
>> File "/backup/code/luna/t.py", line 19, in <module>
>> cf.insert(key, columns, write_consistency_level)
>> File "/usr/lib/python2.6/site-packages/pycassa/columnfamily.py", line
>> 338, in insert
>> self._wcl(write_consistency_level))
>> File "/usr/lib/python2.6/site-packages/pycassa/connection.py", line 135,
>> in client_call
>> return getattr(self._client, attr)(*args, **kwargs)
>> File "/usr/lib/python2.6/site-packages/cassandra/Cassandra.py", line
>> 781, in batch_mutate
>> self.recv_batch_mutate()
>> File "/usr/lib/python2.6/site-packages/cassandra/Cassandra.py", line
>> 804, in recv_batch_mutate
>> raise result.ire
>> cassandra.ttypes.InvalidRequestException:
>> InvalidRequestException(why='UUIDs must be exactly 16 bytes')
>>
>>
>> What's going on ?
>>
>>
>> --
>> Shuge Lee | Lee Li | 李蠡
>
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com
