Sometimes a federate will not receive updates to its subscribed objects

[sperka]

Excerpt from the input source log:
16:29:19.002 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource - t=64.0
16:29:19.003 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=6
16:29:19.003 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=6
16:29:19.003 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=5
16:29:20.009 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource - t=65.0
16:29:20.009 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=6
16:29:20.009 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=2
16:29:20.009 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=4
16:29:21.011 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource - t=66.0
16:29:21.011 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=6
16:29:21.011 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=2
16:29:21.011 [SimpleAdderObjects.InputSource.main()] INFO  SimpleAdderObjects.InputSource -              operand=4

Excerpt from the adder log:
16:29:20.009 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - t=65.0
16:29:20.009 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                received operand with value=6
16:29:20.009 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - Object received and handled: Main Loop
16:29:20.009 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                received operand with value=6
16:29:20.009 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - Object received and handled: Main Loop
16:29:20.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                received operand with value=5
16:29:20.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - Object received and handled: Main Loop
16:29:20.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                calculated sum=17
16:29:21.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - t=66.0
16:29:21.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                received operand with value=2
16:29:21.010 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - Object received and handled: Main Loop
16:29:21.011 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                received operand with value=4
16:29:21.011 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - Object received and handled: Main Loop
16:29:21.011 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                calculated sum=6
16:29:22.006 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder - t=67.0
16:29:22.006 [SimpleAdderObjects.Adder.main()] INFO  SimpleAdderObjects.Adder -                calculated sum=0

[sperka]

@tpr1 isn't it because using UDP ?

[tpr1]

portico implements a reliable protocol on top of UDP that should guarantee delivery of the attribute updates. both of these federates were also set with isLateJoiner false, which should make them both time constrained and time regulating, which makes a stronger guarantee that the updates should be delivered the next logical time step.

[hneema08]

Tom, The object 'attributes' have two parameters (like interactions), viz. 1: order {timestamp, receive} 2: Delivery {reliable, best_effort} Can you make sure that the model this showed up in has the 'Delivery' set to 'reliable' for all attributes? Does the problem still exist after doing this? If it does, then it's a bug then we would need to look into.

[tpr1]

the attribute output in the logs is set to reliable and timestamp.

this issue has persisted since the dawn of time; well before the recent commits.