SSLSocketFactory IOException unrecoverable error

[ckrey]

2014-08-25 12:38:59 E SSLSocketFactory IOException
2014-08-25 19:56:26 E SSLSocketFactory IOException
2014-08-25 21:25:45 E SSLSocketFactory IOException
2014-08-25 21:42:29 E SSLSocketFactory IOException
2014-08-25 21:43:15 E SSLSocketFactory IOException
2014-08-25 21:44:00 E SSLSocketFactory IOException
2014-08-25 21:44:45 E SSLSocketFactory IOException
2014-08-25 21:45:30 E SSLSocketFactory IOException
2014-08-25 21:46:15 E SSLSocketFactory IOException
2014-08-25 21:47:00 E SSLSocketFactory IOException
2014-08-25 21:47:45 E SSLSocketFactory IOException
2014-08-25 21:48:30 E SSLSocketFactory IOException
2014-08-25 21:49:15 E SSLSocketFactory IOException
2014-08-25 21:50:00 E SSLSocketFactory IOException
2014-08-25 21:50:45 E SSLSocketFactory IOException
2014-08-25 21:51:30 E SSLSocketFactory IOException
2014-08-25 21:52:15 E SSLSocketFactory IOException
2014-08-25 21:53:00 E SSLSocketFactory IOException
2014-08-25 21:53:45 E SSLSocketFactory IOException

2014-08-25 21:54:30 E SSLSocketFactory IOException
2014-08-25 21:54:30 W MQTTHandler connectToBroker: 32103
2014-08-25 21:54:33 W MQTTHandler disconnect: 32101

[ckrey]

$reconnect
2014-08-25 22:00:29 E SSLSocketFactory IOException
2014-08-25 22:00:30 W MQTTHandler connectToBroker: 32103
2014-08-25 22:00:30 W MQTTHandler disconnect: 32101
2014-08-25 22:00:36 W MQTTHandler disconnect: 32101
Uncaught exception: java.lang.NullPointerException: 0

• general.MQTTHandler.publish(), bci=4
• general.SocketGPRSThread.processMessage(), bci=48
• general.SocketGPRSThread.run(), bci=140
  reconnecting

[ckrey]

$reconnect
2014-08-25 22:02:50 W MQTTHandler disconnect: 32101
reconnecting
$state
NUMSAT:9;BEARER:3;CREG:5;CGREG:5;BATT:4.0;EXTV:0.0;Q:34;CONN:1;NETW:1;OPER:"E-Plus";WAKEUP:IgnitionWakeup;uFW:02.18,02.01,02.16;SW:0.6.88;EG5:Cinterion,EGS5-X,REVISION 02.004;IMEI:356612027383852;DATE:2014-08-25 22:03:11

[ckrey]

Watchdog is running, detecting GPRS is dead, but Watchdog is not killing the app

[ckrey]

another, maybe unrelated observation: GPRS connection gets lost from time to time (good weather, not moving):

2014-08-26 06:56:27 I AppMain wakeupMode is IgnitionWakeup
2014-08-26 07:18:19 W MQTTHandler connectionLost
2014-08-26 07:18:22 W MQTTHandler disconnect: 32101
$gps
2014-08-26 07:34:53
...
Altitude 65m
Speed 2kph
Course 0
Trip 44m

2014-08-26 07:49:11 W MQTTHandler connectionLost
2014-08-26 07:49:14 W MQTTHandler disconnect: 32101

[ckrey]

Extended error message probably was

E SSLSocketFactory IOException Profile could not be activated ssl://...

lowered log level from Error to Warning

[Choralthings]

Could be a DNS problem?
Try to close the connection using AT+CGATT=0, and then retry to open the profile.

[jpmens]

It's always a fscking DNS problem ... ;-)

[ckrey]

Thanks for the hint. Obviously, the first thing the gw does to establish a
connection to the MQTT broker is to resolve it's name.

I already close the connection and repeat until the connect succeeds.

If the software stops retrying or hangs in a loop, I rely on the GPIO6
watchdog.

[ckrey]

Live testing showed no hang-up problems in the last 2 days