Server sending SMPP delayed

Juankaher4 years ago

Hi Anton,
I had have a Traccar server for 3 years always working fine. Past Febrery 25th started to notice a important delay when sending SMS. I already talked with SMS provider and validated that when an SMS is been sent from server they do not received the request, they received it past 10-20 minutes !!!

It is clear that the cause of this delay is not the SMS provider. I restart the server to eliminate possible memory issues but it remains the same.

Could you please give me some light. What do you thing could be the reason for such strange behaivor?

Juankaher4 years ago

extracted from log

2020-03-10 08:47:14  WARN: Unable to get response within [10000 ms] - SmppTimeoutException (... < SmppClient:216 < *:232 < ...)

But as I said....message does not reach SMS provider until 10-20 minutes later and got this error

Juankaher4 years ago
2020-02-14 19:36:59  INFO: Operating system name: Windows Server 2016 version: 10.0 architecture: amd64
2020-02-14 19:36:59  INFO: Java runtime name: Java HotSpot(TM) 64-Bit Server VM vendor: Oracle Corporation version: 25.131-b11
2020-02-14 19:36:59  INFO: Memory limit heap: 2731mb non-heap: 0mb
2020-02-14 19:36:59  INFO: Character encoding: UTF-8 charset: UTF-8
2020-02-14 19:36:59  INFO: Version: 3.14-SNAPSHOT
Anton Tananaev4 years ago
  1. What makes it so clear that it's not SMS provider?
  2. Are there delays with writing data into the database?
Juankaher4 years ago

  1. Because we meet to perform some tests......When we press the notification test button within Account menu they do not receive the request...in fact they received 10-20 minutes delayed.

  2. There are no delays writing into DB, in fact , all works perfectly exception made of SMS

Anton Tananaev4 years ago

That doesn't really make sense to me, but keep us posted if you find the root cause.

jaimzj4 years ago

If I may suggest, please try connecting to your smpp provider with any openly available smpp client software and test SMS deliverability.

If you haven't already done that, that might help you figure out the root cause.

Juankaher4 years ago

Thanks Jaimzj.
In fact I already did what you suggest. It open channel with SMS provider, send SMS and keep channel open....
So I must confess I am totally lost..

Juankaher4 years ago

checking the log I found this...

2020-03-11 21:43:15  WARN: Unable to accept offer within [10000 ms] (window full) - SmppTimeoutException (... < SmppClient:216 < *:232 < ...)

Any idea what´s happening?

Juankaher4 years ago

I mean, It is clear that is a timeout but what could be root cause?