On Mon, May 19, 2008 at 4:27 PM, Cameron Simpson <cs@xxxxxxxxxx> wrote: > On 19May2008 10:36, mark <markkicks@xxxxxxxxx> wrote: > | In /var/log/messages this is the only weird message > | May 19 10:32:16 XXX kernel: possible SYN flooding on port 80. Sending cookies. > Are you running a web server? It may be forking like mad trying to > service these requests... Yes, I am running a web server nginx with 4 worker process. It is serving only static files and like 70-100 requests/second. The CPU load is really low.. I even rebooted the machine, load average is low uptime 18:03:34 up 7:44, 2 users, load average: 0.26, 0.24, 0.24 > | have only 425 processes running > | ps aux | wc -l > | 425 > Does "ps axf" tell you anything useful/unusual? I find it more helpful > than "aux" because it shows the parent/child tree. no, there is nothing unusual! ps axf | wc -l 426 > Hmm, another thought. See what ulimit says about your process limit; > maybe F9 have some default limits that F8 did not. I increased open files in F8 to 32768, that is preserved here in F9 How do I check my process limit? this is ulimit -a output ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 137216 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 32768 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
