Interesting. I am using PCLinuxOS(Mandrak) in console mode. Here is my memory info and you can see that I still have a lot of memory while asterisk is running [EMAIL PROTECTED] ~]# cat /proc/meminfo MemTotal: 2076000 kB MemFree: 1855636 kB Buffers: 17224 kB Cached: 115916 kB SwapCached: 0 kB Active: 124100 kB Inactive: 73468 kB HighTotal: 1179264 kB HighFree: 992808 kB LowTotal: 896736 kB LowFree: 862828 kB SwapTotal: 1365484 kB SwapFree: 1365484 kB Dirty: 216 kB Writeback: 0 kB AnonPages: 64524 kB Mapped: 43912 kB Slab: 13168 kB PageTables: 1344 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 2403484 kB Committed_AS: 142512 kB VmallocTotal: 114680 kB VmallocUsed: 8484 kB VmallocChunk: 104492 kB [EMAIL PROTECTED] ~]#
You mentioned DDoS projection. How can I find out if my distro has it built in? ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nicholas Blasgen Sent: Thursday, September 20, 2007 8:56 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] Asterisk 1.2.24 simultaneous call limits. Just thinking about it quickly, it's always possible it has nothing to do with Asterisk. There are many instances where I run into issues with a poorly configured servers when they have even a little bump in HTTP traffic. This was years ago though, and it was an issue to do with a web server and not Asterisk, but look into your kernel's configuration. Sometimes the kernel's settings are setup for a normal USER and not designed to handle the memory allocation a server demands. The fix for me back then was something to do with the MAXIMUM PAGE REQUESTS or SIZE maybe. Basicly the kernel couldn't keep track of all the HTTP processes. Now that I'm reading this over I doubt it's your problem because Asterisk doesn't fork. But while we're at it, tell me a bit more about your system. What operating system (and version)? The problem could also be with your method of load generation, but I wouldn't know that since I've never tried load testing a system. Lastly, I know FreeBSD started incorporating a basic DDoS protection a few years back and maybe that's also in some of these newer Linux distros. They would detect a flood and start to limit the bandwidth. These are just ideas, I don't really like any of them. Sometimes the kernel will report issues to SYSLOGD. Might want to check your error and message logs. cat /proc/meminfo On a Linux box will give you memory limits and how close you are to them. They're not exactly what I was looking for, but maybe that will help. All TCP connections require the Kernel to page the information but I can't seem to find out how to access that limit if any. On 9/20/07, Wai Wu <[EMAIL PROTECTED]> wrote: Hi everyone, I am running into wall today with simultaneous call limits. I have two Asterisk machines (fast 3GHz C2D with 2GB of ram). I tried to create a lot of sip calls from one machine to the other by issuing AMI Originate commands to one machine. The machine that makes calls plays a message (demo-intruct) upon the other machine answer. The machine receives the calls just waits for 40 seconds then hangs up. Throught the manager connection, I was creating 10 calls per-second. I also have sip phone registered with the calling machine. At around 150 to 200 calls. When I call the machine that's making all the calls, most of the calls couldn't go through. For the ones that went through, most of them will drop off within seconds of the call. But here is catch. When I run 'top', the cpu is idling 97%. My question is. Is there a limit on the number of simultaneous calls Asterisk can handle? I know I have very fast systems. Shouldn't they be able to handle that many calls? What is your take? Thnx _______________________________________________ Sign up now for AstriCon 2007! September 25-28th. http://www.astricon.net/ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users <http://lists.digium.com/mailman/listinfo/asterisk-users> -- /Nick
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