[Asterisk-Users] Asterisk Crashing (high load issues)

[Kyle Hagan]

 We purchased a new Dual Xeon 3ghz, 2gb ram to upgrade our 3ghz Pentium 
1gb ram, that has been having load issues due to our growing company.

We are having problems... We use a predictive dialer that we custom 
programmed in perl. It basically drops, moves, files into the callout 
directory and uses queues to transfer to agents when someone picks up.

It has been working pretty good, except we now have 50+ dialers on the 
system taking calls. The system dials 2-4 per available agent every 3-5 
seconds based on, calls ringing and available agents. We can keep them 
to about 8-20 seconds between calls. But the number of ringing lines is 
causing load issues. Hence the new server.

We put Fedora Core 4 on with now problem. We were running 2 t1's in the 
beginning of the day just to make sure the system was running good. We 
finally put it on 8 t1's and the system ran great for about 4 hours. 
Then the load started going up and up until the server just locked 
completely. I could not get much information from the server. The lead 
went to 170+ before it locked. Asterisk was showing 99% cpu usage at crash.

 I have some information that the log had in it just before the crash. 
There was something about cpu3 soft lockup and page fault messages. If 
someone can help I will post the log tomorrow when I get into work.
We had to switch back to the old server with the load issues.

 Some other information about the servers follows:

 We are running a separate slim server to stream moh.
 The predictive server is a separate pc connecting via manager interface 
for agent information, available, busy and callerid of the person they 
are talking to
 We have a script (perl) running on the Asterisk server to move the 
callout files into the callout directory that are created via a web POST 
via apache, the script checks for files in a temp directory and move the 
files into the callout directory.

Thanks,
Kyle