On 04.01.2009 15:40, Ruediger Pluem wrote:
On 01/04/2009 03:26 PM, Rainer Jung wrote:
On 04.01.2009 14:14, Ruediger Pluem wrote:
On 01/04/2009 11:24 AM, Rainer Jung wrote:
On 04.01.2009 01:51, Ruediger Pluem wrote:
On 01/04/2009 12:49 AM, Rainer Jung wrote:
On 04.01.2009 00:36, Paul Querna wrote:
Rainer Jung wrote:
During testing 2.3.1 I noticed a lot of errors of type EMFILE: "Too
many open files". I used strace and the problem looks like this:
- The test case is using ab with HTTP keep alive, concurrency 20
and a
small file, so doing about 2000 requests per second.
What is the exact size of the file?
It is the index.html, via URL /, so size is 45 Bytes.
Can you try if you run in the same problem on 2.2.x with a file of
size 257 bytes?
I tried on the same type of system with event MPM and 2.2.11. Can't
reproduce even with content file of size 257 bytes.
Possibly you need to increase the number of threads per process with event MPM
and the number of concurrent requests from ab.
I increased the maximum KeepAlive Requests and the KeepAlive timeout a
lot and during a longer running test I see always exactly as many open
FDs for the content file in /proc/PID/fd as I had concurrency in ab. So
it seems the FDs always get closed before handling the next request in
the connection.
After testing the patch, I'll try it again with 257 bytes on 2.2.11 with
prefork or worker.
Regards,
Rainer
