"disseminating load info" is not related to your problem. certainly you should be using connection pooling rather than opening a ton of sockets.
You didn't say what CL you are using, but you should not use CL.ZERO for load tests. On Thu, May 20, 2010 at 11:14 AM, xavier manach <x...@tekio.org> wrote: > Hi. > > I am neebie in Cassandra. I study and compare performance of databases for > choose my future architecture. > > I try to load a lot of datas in cassandra. > I use python with protocol thrift (very simple, whithout threading) > I do sequentials requests : client.batch_mutate and client.get_slice. > (around 1M mutate y 0.3M get mixed for 10 columns family) > I didn't wait between each request. > I use only one node (I have the same probleme with 2 nodes) > > It's start fine, but in the middle of the load > during an transport.open() > I have this exception : > TTransportException.NOT_OPEN error > with the message : could not connect to <IP>:<PORT> > > The server didn't respond for seconds ( between 1 and 30) > After, it's work again... > > I turn the log to DEBUG, > When the server did'nt respond, I have this message : > Disseminating load info... > Whats mean this ? > > I had forget something ? What is wrong ? > How avoid it ? > > > Thanks for your help. > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
