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From "Jeremiah Jordan" <JEREMIAH.JOR...@morningstar.com>
Subject Trying to use the new column index feature
Date Fri, 27 Aug 2010 15:13:30 GMT
I am trying to use the new column index feature.  I am using the nightly
from: apache-cassandra-2010-08-23_13-57-40-bin.tar.gz.
I created a column family:
colFam = CfDef('Activity',
                       'Activity',
                       'Standard',
                       'Timestamp',
                       'BytesType')
colFam.column_metadata = ColumnDef(name='Time',
 
validation_class='LongType',
 
index_type=IndexType.KEYS,
                                               index_name='TIME_INDEX')

self._client.system_add_column_family(colFam)

When I try to use batch_mutate to insert data I get:
Traceback (most recent call last):
  File "C:\GitStuff\olympus_beta\Python\Olympus\Common\DataHelper.py",
line 404, in InsertData
    self._client.batch_mutate(mutation_map=dataToInsert,
consistency_level=self._DATA_CONSISTENCY_WRITE)
  File
"C:\GitStuff\olympus_beta\Python\Olympus\Common\cassandra\Cassandra.py",
line 786, in batch_mutate
    self.recv_batch_mutate()
  File
"C:\GitStuff\olympus_beta\Python\Olympus\Common\cassandra\Cassandra.py",
line 803, in recv_batch_mutate
    raise x
TApplicationException: Required field 'cf_def' was not present! Struct:
system_add_column_family_args(cf_def:null)

The system.log has this in it:
10/08/27 10:09:05 ERROR thrift.CustomTThreadPoolServer: Thrift error
occurred during processing of message.
org.apache.thrift.protocol.TProtocolException: Missing version in
readMessageBegin, old client?
        at
org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProto
col.java:211)
        at
org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2
487)
        at
org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(Cu
stomTThreadPoolServer.java:167)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecuto
r.java:886)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.ja
va:908)
        at java.lang.Thread.run(Thread.java:619)

My code and the server are both using API version 11.1.0, so that wasn't
the problem.

[default@unknown] connect localhost/9160
Connected to: "Test Cluster" on localhost/9160
[default@unknown] show api version
11.1.0

>>> import cassandra.constants
>>> print cassandra.constants.VERSION
11.1.0
>>>

Am I doing something wrong or is this a bug?
I looked at the code in test_thrift_server.py, but it uses insert not
batch_mutate to put data into the indexed column.

________________________________
Jeremiah Jordan
Application Developer
Morningstar, Inc.

Morningstar. Illuminating investing worldwide.

+1 312 696-6128 voice
jeremiah.jordan@morningstar.com

www.morningstar.com

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