Have you tried to emulate ESME connecting and disconnecting to SMPPbox?

BR,
Nikos
----- Original Message ----- From: Rene Kluwen
To: [email protected]
Sent: Wednesday, August 18, 2010 6:56 PM
Subject: FW: smppbox bulk sms: slow reception from a client


Sorry, forgot to copy the list:

Yes, if your problem is that open smppbox stalls every 10 messages, then I found it.
If you want, apply the attached patch to smppbox and try again.

About broken pipes and PDU unpacking failed: I have not been able to reproduce this as of now. I tried to submit 10,000 messages and no sign of any problem. To be continued.

== Rene


From: Davit Mirzoyan [mailto:[email protected]]
Sent: Wednesday, 18 August, 2010 17:26
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client

Dear Rene,

Hopefully the problem you found was the problem I encountered ;). Just to say, my smppbox/kannel stalls for definitely more than a second. Did you also get the same error and warning messages such, as broken pipe and PDU unpacking failed?

BR
Davit



From: [email protected]
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client
Date: Wed, 18 Aug 2010 15:58:46 +0200
I did find the problem why open smppbox would send 10 messages and then stall for a second. Thanks to Nikos fakesmpp stress test, I could isolate the problem quite quickly.

Updated code will be available after next open smppbox update (see other thread of Victor Luchitz).

== Rene

From: Davit Mirzoyan [mailto:[email protected]]
Sent: Wednesday, 18 August, 2010 11:42
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client

I am using ALT.SMS.SmppClient. It connects to my smppbox over smpp protocol and tries to inject bulk sms. Then it disconnects and connects again in a while for deliveries. Do you think it can be from my smpp client? It works fine when I send only a single sms through kannel/smppbox. When I have more sms it keeps stalling. But I also tried to use the same ALT.SMS.SmppClient with NowSMS demo and it worked just fine with bulk messages.

Has anybody succeeded with sending bulk sms through smppbox/kannel? If yes, could you please tell me what smpp client you are using? Or perhaps there is something wrong
with my configuration files.

Davit



From: [email protected]
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client
Date: Tue, 17 Aug 2010 22:51:11 +0200
Was just looking at your log files again.
What SMPP client is your ESME running? Also Kannel?

== Rene


From: Davit Mirzoyan [mailto:[email protected]]
Sent: Tuesday, 17 August, 2010 19:04
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client

I am using gateway (svn) revision 4837 and smppbox (svn) revision 31. I tried also smppbox revision 33. Still the same. I haven't though tried another kannel version.
Do you think it can be from the kannel version?

Davit



From: [email protected]
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client
Date: Tue, 17 Aug 2010 17:19:06 +0200
Just a long shot: By chance, did you compile with another Kannel version that you are executing?

What kind of (svn) version of smppbox are you using? And which Kannel version?

== Rene


From: Davit Mirzoyan [mailto:[email protected]]
Sent: Tuesday, 17 August, 2010 17:10
To: [email protected]; [email protected]
Subject: RE: smppbox bulk sms: slow reception from a client

Hi,

I kept playing around with the configuration files but still no luck. Today I tried to send 20 sms to smppbox but my smppbox or kannel kept stalling again. My system receives some 6 sms from my client and than it stalls for 1 minute or so before it continues receiving the rest. Moreover, my client does not receive all the deliveries back. It gets some 12 out of 20. I checked my log files and I noticed several error and warning messages. In my smppbox.log I
get the following error and warning messages periodically.

DEBUG: SMPP[ESME]: Sending PDU:
DEBUG: SMPP PDU 0x910c7b0 dump:
DEBUG:   type_name: bind_receiver_resp
DEBUG:   command_id: 2147483649 = 0x80000001
DEBUG:   command_status: 0 = 0x00000000
DEBUG:   sequence_number: 1 = 0x00000001
DEBUG:   system_id: "VMA"
DEBUG: SMPP PDU dump ends.
WARNING: SMPP: PDU NULL terminated string (service_type) has no NULL.
DEBUG: Octet string at 0x910ae28:
DEBUG:   len:  12
DEBUG:   size: 13
DEBUG:   immutable: 0
DEBUG: data: 00 00 00 05 00 00 00 00 00 00 00 02 ............
DEBUG: Octet string dump ends.
ERROR: smppbox[ESME]: PDU unpacking failed.
DEBUG: smppbox[ESME]: Failed PDU omitted.
ERROR: Invalid SMPP PDU received.
DEBUG: Thread 2 (smppbox.c:smpp_to_bearerbox) terminates.
DEBUG: Started thread 3 (smppbox.c:function)

ERROR: SMPP: Unknown TLV `dlr_err', don't send.
INFO: We received an SMS message.
DEBUG: DLR[internal]: Looking for DLR smsc=ESME, ts=a4517482, dst=+37494086408, type=1
WARNING: DLR[internal]: DLR from SMSC<ESME> for DST<+37494086408> not found.

and in my kannel.log I get this message periodically

DEBUG: boxc_sender: sent message to <127.0.0.1>
DEBUG: send_msg: sending msg to boxc: <ESME>
DEBUG: boxc_sender: sent message to <127.0.0.1>
ERROR: Connection to box <127.0.0.1> broke.
EBUG: send_msg: sending msg to boxc: <ESME>
ERROR: Error writing 16 octets to fd 29:
ERROR: System error 32: Broken pipe
ERROR: Couldn't write Msg to box <127.0.0.1>, disconnecting
DEBUG: Thread 19 (gw/bb_boxc.c:boxc_sender) terminates.
ERROR: Error writing 16 octets to fd 29:
ERROR: System error 32: Broken pipe
DEBUG: Thread 18 (gw/bb_boxc.c:function) terminates.
DEBUG: send_msg: sending msg to boxc: <ESME>
DEBUG: boxc_sender: sent message to <127.0.0.1>
DEBUG: send_msg: sending msg to boxc: <ESME>
DEBUG: boxc_sender: sent message to <127.0.0.1>
INFO: Connection closed by the box <127.0.0.1>
DEBUG: send_msg: sending msg to boxc: <ESME>
DEBUG: Thread 17 (gw/bb_boxc.c:boxc_sender) terminates.
WARNING: smsbox_list empty!

Most of all the error about the "Broken pipe" alerts me, I don't know what that means but it seems to be serious.
I don't know if that can be the reason.

My current configuration is as follows:

**** smskannel.conf ******

group = core
admin-port = 13000
smsbox-port = 13001
admin-password = bar
log-file = "/tmp/kannel.log"
log-level = 0
box-deny-ip = "*.*.*.*"
box-allow-ip = "127.0.0.1"

include = "/home/davit/workspace/kannel/gateway-revision-4837/gw/smsbox.conf"
include = "/home/davit/workspace/kannel/gateway-revision-4837/gw/smsc.conf"

******************************************
******** smsc.conf *************

group=smsc
smsc=smpp
smsc-id=17
interface-version=34
host=***********
port=*****
system-id=*****
smsc-password=******
system-type=default
transceiver-mode=1

******************************************
********* smsbox.conf ***************

group = smsbox
bearerbox-host = 127.0.0.1
sendsms-port = 13013
log-level = 0

group = smsbox-route
smsbox-id = VMA
smsc-id = 17

*******************************************
******** smppbox.conf ********************

group = core

group = smppbox
# our boxc type
smppbox-id = box1
# the port to listen on for smpp connections
smppbox-port = 16000
# we connect to the following host as a box
bearerbox-host = 127.0.0.1
bearerbox-port = 13001
log-level = 0
log-file = smppbox.log
our-system-id = VMA
route-to-smsc = 17
# see sample smpplogins.txt
smpp-logins = "/home/davit/workspace/kannel/smppbox-revision-41/gw/smpplogins.txt"

***************************************************

and my smpplogins.txt

foo bar VMA 245.127.0.0.1
client-02 password-02 vma 127.0.0.1

I would really appreciate any help and ideas. I don't know how to tackle this problem ;)

Cheers,
Davit


Date: Sat, 14 Aug 2010 21:14:04 +0200
Subject: Re: smppbox bulk sms: slow reception from a client
From: [email protected]
To: [email protected]
CC: [email protected]

Onlly 10 sms is nothing of course. I wouldn't even call it bulk sms.

Is there anyone else with the same problems? Because if so, it seems a
serious enough issue to look into.

-- Rene





> Dear users,
>
> Has anybody tried to send bulk sms from a client via smpp to smppbox? It
> seems that smppbox or bearerbox accepts bulk sms extremely slowly. My
> client is not able to inject bulk sms to my smppbox (10 sms or so). > Kannel > keeps stalling while receiving the messages. I am using a smppbox > revision > 43 that is connected to a gateway revision 4837. Has anybody come up > with
> such a problem? Any help is appreciated ;).
>
> Many thanks,
>
> Cheers,
> Davit
>


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