On 21.06.2012 00:26, Pierre Ayotte wrote:
Hello everyone,
We are experimenting HTTD.EXE crash on Windows 2008 R2 x64 and each time we
see a bunch of error "Failed allocating AJP message buffer" and then one
message "All tomcat instances failed, no more workers left" (see below).
The HTTPD.EXE recylcle itself, users are disconnect and then the service
come back online. I did lot of search on those message but i cannot find
any solution. Some help would really be appreciated!
It seems you are out of memory. Either
- there's some leak in your Apache, most probably in some non standard
module
- or your server is very tight on memory
- or your application inside Tomcat is getting slow, so there are more
and more requests getting stuck inside Apache waiting for a response
from the web app and those requests consume to much memory.
There are MPM settings for Apache on Windows that limit the number of
threads (=connections =~ concurrent requests) Apache will allow.
Monitor your server memory usage.
Regards,
Rainer
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