Thanks Will try this
From: Alejandro Guerrieri [mailto:alejandro.guerri...@gmail.com] Sent: Friday, April 15, 2011 3:52 PM To: Rapture Cc: users@kannel.org Subject: Re: Slow RX incoming You can do a packet trace using tcpdump: sudo tcpdump -s 65000 -w kannel_trace.pcap host <smsc ip> and port <smsc port> You can then open it with ethereal. Hope it helps, Alex On Fri, Apr 15, 2011 at 2:51 PM, Rapture <supp...@ims.co.ke> wrote: Regular Kannel. I'm not familiar with a packet trace or zero win errors. From: Alejandro Guerrieri [mailto:alejandro.guerri...@gmail.com] Sent: Friday, April 15, 2011 3:47 PM To: Rapture Cc: users@kannel.org Subject: Re: Slow RX incoming Make a packet trace and check if you get "zero win" errors. If you get tons of DLR's and your DB is not fast enough that would explain the problem. Art you using a "regular" Kannel or did you apply any patches to it? Regards, Alex On Fri, Apr 15, 2011 at 2:35 PM, Rapture <supp...@ims.co.ke> wrote: Hi Alex, The issue is persistent but all has been well till about 3 weeks ago when I started receiving huge bursts of messages. DLR is enabled and DB is ok as other application is working properly. Regards, Rapture From: Alejandro Guerrieri [mailto:alejandro.guerri...@gmail.com] Sent: Friday, April 15, 2011 12:14 PM To: Rapture Cc: users@kannel.org Subject: Re: Slow RX incoming Is the issue constant, or only happens at some specific times during the day? Do you have DLR's enabled? DB-backed? Maybe the issue happens when you're getting lots of them? Perhaps a long shot, but might be worth checking: try doing a packet trace and verify you're not getting TCP "zero win" errors. Regards, Alex On Thu, Apr 14, 2011 at 7:27 AM, Rapture <supp...@ims.co.ke> wrote: Hi guys, We've been running a campaign averaging 350,000 messages a day. Lately I noticed kannel does not retrieve them as fast as it needs to hence a backlog builds on the operator's end. This is only affecting one of the operators. On calling them, they insisted that it is Kannel which determines how many RX messages to pull. I tried an old SMPP client software I'd written in Delphi and it cleared all the backlog in less than 5 mins and continues to do so in real time. All data is dumped into the same mysql table. I've tried using throughput in kannel with no success. I've even opened upto 15 channels to the same operator without success. What could be the issue? How can I speed up my intake of messages? Distraught, TR
