Hello All, Any thoughts on this issue?
I thought there was some issue at the service that processes the dlr (the dlr-url request handler). But that was also not the case. I increased the number of threads on this handler and it is able to process at the speeds with which the sms box is calling the urls. There is no lag here. I believe both bearer box and sms box are multi threaded. Is my understanding correct? Is there any way to increase the number of threads here to ensure more input is processed? I have observed one more thing. Kannel throughput is configured as 800 and the rate at which I request sms box to send sms is 400/sec based on Vangelis’ input that the throughput drops to half if dlr reports are used. But the actual throughput I saw which the smsbox was taking in was 200 initially which gradually went down to about 30 and still dipping. I am not able to figure out where the issue could be. Here is my kannel configuration. group = core admin-port = 6000 smsbox-port = 6001 admin-password = ****** store-type = file log-level = 0 dlr-storage = internal group = smsc smsc-id=SMPPSim smsc = smpp host = ******** port = 5019 smsc-username = **** smsc-password = **** system-type = "" address-range = source-addr-ton = 0 source-addr-npi = 0 dest-addr-ton = 1 dest-addr-npi = 1 transceiver-mode = 1 throughput = 800 group = smsbox smsbox-id = send_smsbox bearerbox-host = ******** sendsms-port = 6013 global-sender = 6013 log-level = 0 group = smsbox-route smsbox-id = dlr_smsbox group = sendsms-user username = **** password = **** default-smsc = SMPPSim max-messages = 3 concatenation = true I had configured the “smsbox-route” option here but I noticed no difference in its use here so I’m hoping there is no issue because of that. Appreciate your support. Thanks & Regards, Nanda From: Nanda Kumar P Sent: 24 April 2016 17:39 To: 'Jeff Thorn' Cc: users@kannel.org; Vangelis Typaldos Subject: RE: Kannel TPS reduces gradually if DLR is used Hello Jeff, I’m not storing the dlrs in a db. Regards, Nanda From: Jeff Thorn [mailto:j...@thorntechnologies.com] Sent: 24 April 2016 17:18 To: Nanda Kumar P Cc: users@kannel.org<mailto:users@kannel.org>; Vangelis Typaldos Subject: RE: Kannel TPS reduces gradually if DLR is used Are you storing dlrs in a database? Without the proper indexes it performance will definitely degrade as it takes longer and longer to look up the dlr. Kannel doesn't optimize the dlr database. You need to do that. On Apr 24, 2016 5:55 AM, "Nanda Kumar P" <nanda.ku...@pelatro.com<mailto:nanda.ku...@pelatro.com>> wrote: Thanks for the quick response Vangelis. For point #1, All my texts are under less the 50 ASCII characters each. So I expect one DLR for one outgoing SMS. Is there anything that I’m missing? Please do let me know if there is any other information required. I’ll be happy to share. Thanks & Regards, Nanda From: Vangelis Typaldos [mailto:vty...@outlook.com<mailto:vty...@outlook.com>] Sent: 24 April 2016 15:19 To: Nanda Kumar P; users@kannel.org<mailto:users@kannel.org> Subject: RE: Kannel TPS reduces gradually if DLR is used For point 1: It sounds like you get DLR for multipart sms. Note that for multipart messages you receive DLR for each part. For point 2: You are absolutely correct. Ignore my statement. My bad. BR From: Nanda Kumar P<mailto:nanda.ku...@pelatro.com> Sent: Sunday, April 24, 2016 10:34 AM To: Vangelis Typaldos<mailto:vty...@outlook.com>; users@kannel.org<mailto:users@kannel.org> Subject: RE: Kannel TPS reduces gradually if DLR is used Thank you Vangelis. Few follow up questions though: 1. While I understand the point about the throughput dropping to half, I fail to understand how it went as low as 25 per second. 2. What is the significance of changing the dlr-mask from 3 to 7 or 15? Would it not lower the speeds further as it has to deal with calling the dlr-url for two other flags aside from delivered and undelivered? Thanks & Regards, Nanda From: Vangelis Typaldos [mailto:vty...@outlook.com] Sent: 24 April 2016 12:56 To: Nanda Kumar P; users@kannel.org<mailto:users@kannel.org> Subject: RE: Kannel TPS reduces gradually if DLR is used The throughput assigned by your operator/smsc includes DLR activity. So the actual bind throughput would drop to the half you if you request DLR for any MT. I would suggest to raise dlr-mask from 3 to 7 or 15. Kind Regards, Vangelis From: Nanda Kumar P<mailto:nanda.ku...@pelatro.com> Sent: Sunday, April 24, 2016 8:08 AM To: users@kannel.org<mailto:users@kannel.org> Subject: Kannel TPS reduces gradually if DLR is used Hi, I’m using kannel to send SMS to SMSC and in the send-sms url, I’m also using the dlr-mask as 3 (Delivered and undelivered) and providing a dlr-url callback for the same. I have set the throughput as 300/sec. If I do not use the delivery report, the TPS is consistent and close to 300/sec. However, if I do use delivery report with the above said parameters, the TPS starts from 300 but gradually reduces to less than 25 per second. It would be great if someone can tell me what the reason for this could be. Thanks & Regards, Nanda
