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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Unexpected TType error on web traffic increase
Date Wed, 12 May 2010 14:41:28 GMT
Sounds like the sort of error you'd see if you were using
thread-unsafe Thrift clients on multiple threads.

On Tue, May 11, 2010 at 11:23 PM, Waqas Badar
<waqas.badar@panasiangroup.com> wrote:
> Dear all,
>
> We are using Cassandra on website. Whenever website traffic increases, we
> got the following error (Python):
>
> File "/usr/local/lib/python2.6/dist-packages/pycassa/columnfamily.py", line
> 199, in multiget
>    self._rcl(read_consistency_level))
>
> File "/usr/local/lib/python2.6/dist-packages/pycassa/connection.py", line
> 114, in client_call
>    return getattr(self._client, attr)(*args, **kwargs)
>
> File "/usr/local/lib/python2.6/dist-packages/cassandra/Cassandra.py", line
> 346, in multiget_slice
>    return self.recv_multiget_slice()
>
> File "/usr/local/lib/python2.6/dist-packages/cassandra/Cassandra.py", line
> 368, in recv_multiget_slice
>    result.read(self._iprot)
>
> File "/usr/local/lib/python2.6/dist-packages/cassandra/Cassandra.py", line
> 1767, in read
>    fastbinary.decode_binary(self, iprot.trans, (self.__class__,
> self.thrift_spec))
>
> TypeError: Unexpected TType
>
> Any body also has got this issue ever? I Google on it but no help found. We
> are using pycassa for Cassandra connectivity. Cassandra version is 0.5.1
>
> Can anybody also guide how should we use Cassandra for website e.g. as on
> each page access there is a new process start so how can we implement
> connection pooling on website for Cassandra?
>
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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