We're having problems with connection pooling and the wait queue with mongo using the mongo c# driver.
Is there any way to get metrics from the MongoClient at all? Things like number of active connections, size of connection pool, size of wait queue etc.
There are loads of connection pool events that you can subscribe to which might help you. These are:
You can subscribe to these when you setup the MongoClient
var mongoClientSettings = MongoClientSettings.FromUrl(new MongoUrl("mongodb://localhost"));
mongoClientSettings.ClusterConfigurator = clusterConfigurator =>
{
clusterConfigurator.Subscribe<ConnectionPoolCheckingOutConnectionEvent>(e =>
{
});
};
var mongoClient = new MongoClient(mongoClientSettings);