Chuck Rolke created QPIDJMS-277:
-----------------------------------
Summary: Examples create unused session
Key: QPIDJMS-277
URL: https://issues.apache.org/jira/browse/QPIDJMS-277
Project: Qpid JMS
Issue Type: Bug
Components: qpid-jms-client
Affects Versions: 0.21.0
Environment: Fedora 25; ActiveMQ Artemis broker on port 5672 with
existing queue for test.
Reporter: Chuck Rolke
Running any example like HelloWorld produces two sessions on the connection to
the broker. The first session consists of a Begin in each direction with no
other traffic.
{noformat}
◊ ◊◊ 30.693893 Frame 206 127.0.0.1:49002 -> 127.0.0.1:5672 -> init SASL
(3): (1.0.0)
◊ ◊◊ 30.828034 Frame 208 127.0.0.1:49002 <- 127.0.0.1:5672 <- init SASL
(3): (1.0.0), method Method:
◊ ◊◊ 30.836368 Frame 210 127.0.0.1:49002 -> 127.0.0.1:5672 -> method
Method:
◊ ◊◊ 30.841047 Frame 212 127.0.0.1:49002 <- 127.0.0.1:5672 <- method
Method:
◊ ◊◊ 30.841534 Frame 213 127.0.0.1:49002 <- 127.0.0.1:5672 <- init AMQP
(0): (1.0.0)
◊ ◊◊ 30.843338 Frame 215 127.0.0.1:49002 -> 127.0.0.1:5672 -> init AMQP
(0): (1.0.0)
◊ ◊◊ 30.853214 Frame 216 127.0.0.1:49002 -> 127.0.0.1:5672 -> open [0]
◊ ◊◊ 30.859039 Frame 218 127.0.0.1:49002 <- 127.0.0.1:5672 <- open [0]
◊ ◊◊ 30.864557 Frame 219 127.0.0.1:49002 -> 127.0.0.1:5672 -> begin
[0,null]
◊ ◊◊ 30.880325 Frame 220 127.0.0.1:49002 <- 127.0.0.1:5672 <- begin [0,0]
◊ ◊◊ 30.890504 Frame 221 127.0.0.1:49002 -> 127.0.0.1:5672 -> begin
[1,null]
◊ ◊◊ 30.893458 Frame 222 127.0.0.1:49002 <- 127.0.0.1:5672 <- begin [1,1]
◊ ◊◊ 30.902995 Frame 223 127.0.0.1:49002 -> 127.0.0.1:5672 -> attach
[1,0] sender link_0 (source: endpoint_0, target: queue)
◊ ◊◊ 30.912137 Frame 224 127.0.0.1:49002 <- 127.0.0.1:5672 <- attach
[1,0] receiver link_0 (source: endpoint_0, target: queue), flow [1,0] (0,100)
◊ ◊◊ 30.921187 Frame 225 127.0.0.1:49002 -> 127.0.0.1:5672 -> attach
[1,1] receiver link_1 (source: queue, target: null)
◊ ◊◊ 30.938664 Frame 226 127.0.0.1:49002 <- 127.0.0.1:5672 <- attach
[1,1] sender link_1 (source: queue, target: null)
◊ ◊◊ 30.940795 Frame 227 127.0.0.1:49002 -> 127.0.0.1:5672 -> flow [1,1]
(0,1000)
◊ ◊◊ 30.953207 Frame 228 127.0.0.1:49002 -> 127.0.0.1:5672 -> transfer
[1,0] (0)
◊ ◊◊ 30.961151 Frame 230 127.0.0.1:49002 <- 127.0.0.1:5672 <-
disposition [1] (receiver 0-0)
◊ ◊◊ 30.970108 Frame 231 127.0.0.1:49002 <- 127.0.0.1:5672 <- transfer
[1,1] (0)
◊ ◊◊ 30.973945 Frame 233 127.0.0.1:49002 -> 127.0.0.1:5672 ->
disposition [1] (receiver 0-0)
◊ ◊◊ 30.976020 Frame 234 127.0.0.1:49002 -> 127.0.0.1:5672 -> close [0]
◊ ◊◊ 30.980397 Frame 236 127.0.0.1:49002 <- 127.0.0.1:5672 <- close [0]
{noformat}
At issue in this trace are frames 219 and 220. Session 0 is created but not
used. Right after that Session 1 is created and HelloWorld sends its traffic
through it.
Examples Sender and Receiver do the same thing.
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