While making our first steps with Cassandra, we experience slow inserts working on LAN.
Inserting 7000 keys with 1 column family takes about 10 seconds when Cassandra server running on the same host with the client.
But when server runs on a different host on LAN, the same inserts take more than 10 (!) minutes.
In both cases Cassandra server contains a single node.
We use Cassandra version 0.6.0 running on Windows server 2008.
The client is .NET c# application.