apache "crash" error: socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.

in not very regular bases apache crashed.
The proccess is not killed or stopped, its running but none of the webpages are displayed (arround 400 vhosts).

The error_log file shows this :

socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.
socket.c:2102: REQUIRE(maxfd <= (int)1024) failed.

Any idea ?
LVL 2
MaRiOsGRAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

periwinkleCommented:
That sounds quite like this problem:

http://www.experts-exchange.com/Web/Web_Languages/PHP/PHP_Installation/Q_21757401.html

it sounds like the value for FD is too large!
periwinkleCommented:
It may be that too many file handles (file descriptors) are being opened - i.e. > 1024.

Does each one of these virtual hosts have a separate log file?  Each log file requires a file descriptor...
periwinkleCommented:
Here's some more information on the file descriptor limits:

http://httpd.apache.org/docs/1.3/misc/descriptors.html
MaRiOsGRAuthor Commented:
yes each vhost has separate log files.
We have recomplied apache php etc... but we stil get that error
periwinkleCommented:
You may be hitting against a server limitation.  You might consider writing to a central log file, and running a process to split the log files.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Apache Web Server

From novice to tech pro — start learning today.