I just modified my test client application so that each client has a unique
subscription id. Here is the new code:
String destID = String.format("%d", System.currentTimeMillis());
msg = "SUBSCRIBE\n";
msg = msg + "destination:" + topicName + "\n";
msg = msg + "id:" + destID + "\n";
msg = msg + "ack:auto\n";
msg = msg + "\n";
msg = msg + '\0';
I still see the same error. When one of the clients ends, the other clients
start getting the “AMQ339001\c Destination does not exist\c
jms.topic.ACRS_Exit” error when they try to SEND a message to the JMS topic.
It all seems to work fine until one of the clients UNSUBSCRIBES, DISCONNECTS,
and shutdowns the socket. All of the clients were receiving all of the
messages.
Here is some new information. If I run multiple instances of my test client
application (the new one that has unique subscription IDs for each client) and
then I kill one using “ctrl-c” then I see the same error. The other client
instance starts getting the “AMQ339001\c Destination does not exist\c
jms.topic.ACRS_Exit” error when it tries to SEND a message to the JMS topic.
Therefore, I don’t think the problem is related to the “UNSUBSCRIBE” or
“DISCONNECT” messages because they were never sent when the problem started.
Ed
From: Martyn Taylor [mailto:mtay...@redhat.com]
Sent: Tuesday, July 19, 2016 9:00 AM
To: dev@activemq.apache.org<mailto:dev@activemq.apache.org>
Cc: Ed Kaltenbach <ekaltenb...@ara.com<mailto:ekaltenb...@ara.com>>
Subject: Re: STOMP server quits sending to all subscribers when one client
disconnects
Hi Ed,
You mentioned that using a unique subscription ID does not resolve this issue.
Can you confirm that using different subscription IDs across all your clients
is the same? Were you seeing subscription semantics before the error (i.e. was
every subscription seeing every message?).
I've taken a quick look and there may be an issue in the STOMP protocol
handler. The subscription ID is used to identify consumer queues, this could
cause some issues with multiple clients using the same subscription ID during
unsubscribe. The subscription ID only needs to be unique within connections
https://stomp.github.io/stomp-specification-1.2.html#SUBSCRIBE
Thanks
Martyn
