[lkml]   [1999]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Apache problem with 2.2.12 (network related)
> The server is quite busy (25 req/s, load between 2 and 4). Every 10 or 15
> minutes the server completely stops accepting new HTTP requests, I can see
> the number of open TCP connections decrease from 1000 or more to a couple

But are there lots of requests in SYN_RECV queued ?

> apache immediately cures the problem. I have tried to compile Apache with
> and without -DSINGLE_LISTEN_UNSERIALIZED_ACCEPT option, no noticeable
> diffrence ...
> Any ideas ?

Turn on syn cookies in case its an attack triggering this
(echo "1" > /proc/sys/net/ipv4/tcp_syncookies )

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:54    [W:0.042 / U:1.548 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site