SMPP: Autoreconnect doesn't work

I try to see if the reconnection to the server works, so I kill my smpp server and restart it.
the client never manage to restore the connection.

see the log :
17:52:57 INFO o.j.s.AbstractSession - executeSendCommand
17:52:57 INFO o.j.s.AbstractSession - commandID:80000015 status:00000000 sequence:16
17:53:02 INFO o.j.s.AbstractSession - EnquireLinkSender.run() send
17:53:02 INFO o.j.s.AbstractSession - executeSendCommand
17:53:02 INFO o.j.s.AbstractSession - commandID:80000015 status:00000000 sequence:17
17:53:07 INFO o.j.s.AbstractSession - EnquireLinkSender.run() send
17:53:07 INFO o.j.s.AbstractSession - executeSendCommand
17:53:07 INFO o.j.s.AbstractSession - commandID:80000015 status:00000000 sequence:18
17:53:09 WARN o.j.s.SMPPSession - IOException while reading: null
17:53:09 WARN o.j.s.AbstractSession - closing enquireLinkSender Thread[EnquireLinkSender: org.jsmpp.session.SMPPSession@7b3dd80d,5,main]
17:53:09 WARN o.j.s.AbstractSession - closing enquireLinkSender alive:true daemon:true interrupted:false
17:53:09 INFO o.j.s.AbstractSession - JOINED!!!
17:53:09 WARN o.j.s.AbstractSession - closing enquireLinkSender Thread[EnquireLinkSender: org.jsmpp.session.SMPPSession@7b3dd80d,5,]
17:53:09 WARN o.j.s.AbstractSession - closing enquireLinkSender alive:false daemon:true interrupted:false
17:53:09 INFO o.j.s.SMPPSession - PDUReaderWorker stop
17:53:16 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:53:23 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:53:46 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:53:53 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:54:16 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:54:23 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:54:46 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:54:53 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:55:16 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:55:23 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:55:46 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:55:53 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:56:16 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
17:56:23 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting

[garyrussell]

Can you show your configuration? I just tested (using the TestSmppConnection test case and it worked fine for me...

13:26:32.955 INFO  [Thread-0][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Session to localhost:11111 has been closed. Try to reconnect later
13:26:32.955 INFO  [Thread-2][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Session to localhost:11111 has been closed. Try to reconnect later
13:26:37.961 INFO  [pool-2-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Reconnecting attempt #1 ...
13:26:37.961 INFO  [pool-4-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Reconnecting attempt #1 ...
13:26:37.963 ERROR [pool-4-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Error happened when trying to connect to localhost:11111. Cause: Connection refused
13:26:37.963 ERROR [pool-2-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Error happened when trying to connect to localhost:11111. Cause: Connection refused
...
13:27:02.981 INFO  [pool-2-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Reconnecting attempt #6 ...
13:27:02.981 INFO  [pool-4-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Reconnecting attempt #6 ...
13:27:03.347 INFO  [pool-4-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Successfully reconnect at attempt #6
13:27:03.347 INFO  [pool-2-thread-1][org.springframework.integration.smpp.session.SmppSessionFactoryBean$AutoReconnectLifecycle] Successfully reconnect at attempt #6

[garyrussell]

If you enable DEBUG logging, you'll get more information about the "error happened" exception.

to do the test reconnection I "kill -9" my smmp server
so I have this with debug trace level :

08:59:04 DEBUG o.j.s.SMPPSession - No activity notified, sending enquireLink
08:59:04 INFO o.j.s.AbstractSession - EnquireLinkSender.run() send
08:59:04 INFO o.j.s.AbstractSession - executeSendCommand
08:59:04 DEBUG o.j.DefaultPDUSender - Sending SMPP message 00 00 00 10 00 00 00 15 00 00 00 00 00 00 00 07
08:59:04 DEBUG o.j.s.PDUProcessTask - Received SMPP message PDUHeader(16, 80000015, 00000000, 7)
08:59:04 DEBUG o.j.s.AbstractSession - enquire_link response received
08:59:04 INFO o.j.s.AbstractSession - commandID:80000015 status:00000000 sequence:7
08:59:08 WARN o.j.s.SMPPSession - IOException while reading: null
08:59:08 DEBUG o.j.s.AbstractSession - AbstractSession.close() called
Exception in thread "PDUReaderWorker: org.jsmpp.session.SMPPSession@7ab042ba" java.lang.AbstractMethodError
at org.jsmpp.session.AbstractSessionContext.fireStateChanged(AbstractSessionContext.java:79)
at org.jsmpp.session.SMPPSessionContext.changeState(SMPPSessionContext.java:61)
at org.jsmpp.session.AbstractSessionContext.close(AbstractSessionContext.java:62)
at org.jsmpp.session.AbstractSession.close(AbstractSession.java:208)
at org.jsmpp.session.SMPPSession$PDUReaderWorker.readPDU(SMPPSession.java:626)
at org.jsmpp.session.SMPPSession$PDUReaderWorker.run(SMPPSession.java:582)
08:59:09 DEBUG o.j.s.AbstractSession - EnquireLinkSender stop
08:59:17 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting
08:59:24 ERROR o.s.i.s.s.SmppSessionFactoryBean$AutoReconnectLifecycle - Error happened when trying to connect to localhost:20775. Cause: Failed connecting

may It can be an effect : I replace the version of the deprecated jsmpp (see https://code.google.com/archive/p/jsmpp/) by the new one. To do this I have change the pom like this :

        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-smpp</artifactId>
            <version>1.0.0.RELEASE</version>
            <exclusions>
                <exclusion>
                    <groupId>com.googlecode.jsmpp</groupId>
                    <artifactId>jsmpp</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.jsmpp</groupId>
            <artifactId>jsmpp</artifactId>
            <version>2.2.3</version>
        </dependency>

the SessionListener interface has change :
from :
public void onStateChange(SessionState newState, SessionState oldState, Object arg2)
to
public void onStateChange(SessionState newState, SessionState oldState, Session source)

[garyrussell]

We don't currently support that version of the client; we'll use this issue to update to it when we get some spare time - of course, contributions are always welcome.

I'll try to do this contribution but I'm not yet familiar with gradle environment I usually use maven ;-)

[garyrussell]

This quick hack seems to work (at least all the tests pass). Note that I didn't provide implementations (yet) for the new methods on the session.