"'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
>
