Jeremy and Aaron, Thanks for your help. I had already installed Thrift on my Snow Leopard so I thought running *thrift -gen cassandra.thrift* file would work. However as the wiki suggests it appears only a specific version of Thrift work with a particular Cassandra version. So I checked out the matching version of Thrift. Even after getting the exact version of Thrift though, getting it to work wasn't straight forward and in fact its still throwing errors.
Aaron's suggestions of using the ant task (*ant gen-thrift-py*) seemed much smoother but then that task does not generate the python thrift module, it only generates the cassandra module. So I used a mix and match of both methods and finally have both the thrift and the cassandra modules. However, it now seems there is a mismatch in the API. I ran the python example from http://wiki.apache.org/cassandra/ThriftExamples#Python and ended up with the following errors: Traceback (most recent call last): File "cassandra_client.py", line 52, in <module> main() File "cassandra_client.py", line 35, in main ConsistencyLevel.ZERO) TypeError: insert() takes exactly 5 arguments (7 given) ------ Line 35 of cassandra_client.py is the same as line 35 of the python example on the Cassandra wiki Thrift Examples page. Its the line in bold in the code snippet below: try: transport.open() #Insert the data into Keyspace 1 *client.insert(keyspace,* * key,* * column_path,* * value,* * timestamp,* * ConsistencyLevel.ZERO)* #Query for data column_parent = ColumnParent(column_family="Standard1") slice_range = SliceRange(start="", finish="") predicate = SlicePredicate(slice_range=slice_range) result = client.get_slice(keyspace, key, column_parent, predicate, ConsistencyLevel.ONE) pp.pprint(result) except Thrift.TException, tx: print 'Thrift: %s' % tx.message finally: Can somebody please help and make sense of this. Isn't there a more simple and straightforward way getting Thrift to work with Cassandra? If not, why not? Thanks, Shashank On Wed, Sep 22, 2010 at 1:16 PM, Aaron Morton <aa...@thelastpickle.com>wrote: > I normally get the source download, then run ant gen-thrift-py > > Is there a reason you want to build it manually? > > Aaron > > > On 22 Sep, 2010,at 07:35 PM, Shashank Tiwari <tsha...@gmail.com> wrote: > > I installed thrift successfully on Snow Leaopard. However, when I run > *thrift -gen java interface/cassandra.thrift* with Cassandra 0.6.5, I get > an error which reads as follows: > ....apache-cassandra-0.6.5/interface/cassandra.thrift:303] error: > identifier ONE is unqualified! > Line 303 of cassandra.thrift is highlighted in the text below: > > 296 /** > 297 Get the Column or SuperColumn at the given column_path. If no value > is present, NotFoundException is thrown . (This is > 298 the only method that can throw an exception under non-failure > conditions) > 299 */ > 300 ColumnOrSuperColumn get(1:required string keyspace, > 301 2:required string key, > 302 3:required ColumnPath column_path, > *303 4:required ConsistencyLevel > consistency_level=ONE)* > 304 throws (1:InvalidRequestException ire, > 2:NotFoundException nfe, 3:UnavailableException ue , 4:TimedOutException > te), > 305 > > Could somebody please help resolve this problem and also explain what's > going on here. > > Thanks, Shashank > >
