Single WCF channel performance vs multiple channels

Question

I have an application that reuses the same WCF channel over and over again. I keep a static reference through a factory object. I wonder if this is good pratice or that I should

Answer 1

You should use a single channel factory for all requests but different channels should be constructed for each request. Never reuse channels. They are not expensive to create and are not thread safe. What is expensive to create is the channel factory. It is thread safe and can be reused. Of course if the channel factory get into a faulted state you might need to reopen it.