Long wait time before failed connection to Tibco EMS

Question

I am testing how my code handles situation when machine doesn't have connection to TIBCO Server. I'm using TIBCO.EMS.dll version 8.5.0.5. I don't understand why with these settings it takes around 4 minutes 25 seconds to receive error.

_factory = new ConnectionFactory(URL);
_factory.SetConnAttemptCount(2);
//_factory.SetConnAttemptTimeout(1000);
_factory.SetConnAttemptDelay(1000);
_factory.SetReconnAttemptCount(2);
_factory.SetReconnAttemptDelay(1000);
//_factory.SetReconnAttemptTimeout(1000);
var conn = _factory.CreateConnection(username, password);

The error is: Failed to connect to the server at.... I am using tcp connection. Shouldn't it be maximum 2 x 1000ms (plus some delay between attempts)?

When I uncomment the timeout settings in code above I receive different error: Failed to initialize connection before timeout. Also after around 4 minutes 25 seconds.

This code is executed at service startup so I would prefer it to fail fast as it delays startup.

Answer 1

If you are using a connection factory already defined in the target EMS server this is possible for the factory to be configured with none default connection / reconnection parameters.

From tibemsadmin you can use the show factory command to check if some specific values have been set.

See an example below:

show factory "QueueConnectionFactory"
Factory                     = QueueConnectionFactory
JNDI Names                  = "QueueConnectionFactory"
URL                         = tcp://7222
ClientID                    =
Load Balanced               = no
connect_attempt_count       = 6
connect_attempt_delay       = 10000
connect_attempt_timeout     = 1000
reconnect_attempt_count     = 12
reconnect_attempt_delay     = 10000
reconnect_attempt_timeout   = 1000