Re: [AOLSERVER] Weird "memory leak" problem in AOLserver 3.4.2/3.x

[Janine Sisk]

In addition to the below, there are at least two of us over at  
openacs.org reporting that scheduled procs stopped firing over the  
weekend.  I have one site left on 3.3+ad13 and the other guy says he  
has 3.2+ad12.

This site hasn't been upgraded because the client didn't want to  
upgrade, so any pointers on fixing this would be greatly appreciated.

janine

On May 15, 2006, at 9:55 AM, Guan Yang wrote:

I've experienced this problem over the weekend on half a dozen  
servers in three different locations:

After starting up, AOLserver (mostly 3.4.2, also a 3.5.11) begins  
allocating a lot of virtual memory. When I follow the process in  
top, the virtual memory counter (but not real memory) rapidly  
increases over the course of 10 to 20 seconds, until it hits the  
limit of 3 GB virtual memory in user space on x86 Linux boxes. The  
process then crashes with this message:

nsthread(3094) error: pthread_create failed in NsThreadCreate:  
Cannot allocate memory

(The process is then restarted by supervise/svscan.)

I couldn't find a fix for the problem and had to migrate to  
AOLserver 4.0.10 (we had already planned this for next month)  
immediately. But I find it a bit weird that practically every  
AOLserver 3 installation that I know of encounters this problem  
over the same weekend. Just bad luck? Date sensitive code?

Guan


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