What is concurrency in WCF?
Concurrency is the control of multiple threads active in an InstanceContext at any given time. WCF concurrency will help us to configure how WCF service instances can serve multiple requests at the same time. There are three basic types of concurrency supported by WCF 4.0: Single Concurrency Mode.
What is default concurrency mode in WCF?
There are three concurrency modes available: Single : Each service instance processes one message at a time. This is the default concurrency mode. Multiple : Each service instance processes multiple messages concurrently. Reentrant : Each service instance processes one message at a time, but accepts reentrant calls.
What is instance mode in WCF?
Instance mode is basically a service side implementation detail. It should not manifest itself on the client side. WCF defines the behaviors. For service instance mode we use the ServiceBehaviour attribute that defines the InstanceContextMode property of the enum type InstanceContextMode.
Is WCF single threaded?
With Per Call, new WCF instances are created for every method call made to the WCF server service. The default concurrency is Single so only one thread will be used to serve all instances. For every client instance, a single thread will be allocated. For every method call, a new service instance will be created.
Is WCF channel thread safe?
Yes, it is thread-safe. However, you should know that WCF will automatically serialize the execution of CalculateSomething when it is called from more than one thread using the same ClientBase instance. So if you were expecting CalculateSomething to run concurrently then you will have to rethink your design.
Is WCF client thread safe?
Yes, it is thread-safe. However, you should know that WCF will automatically serialize the execution of CalculateSomething when it is called from more than one thread using the same ClientBase instance.
Can we create instance in WCF?
Actually in WCF service, we can create instance of the service in three ways and It is Per Call, Per Session and Single. If you want to know only overview see the following image which will clear your all doubts.
Which instance mode of WCF is shared among all user?
WCF supports three types of instance activation: per-call services allocate (and destroy) a new service instance for each client request; sessionful services allocate a service instance for each client connection; and singleton services share the same service instance for all clients, across all connections and …
How many requests can a WCF service handle?
WCF service can handle one request at a time.