Re: PB : time wait bucket

> time wait bucket table overflow

According to the kernel source, you overflow a socket limit : too much
connections or too much open connections in 5sec.

How many connections are opened (netstat -a -n) ?

How fast are the connections opened ? (use a tcp monitor software like
iptraff). Maybe your under a denial of service, or there is too much
request on one of your service (imap ? web ? ...).


http://www2.randomlogic.com/linux_html/580828.html

412 /* Sorry, if we're out of memory, just CLOSE this
413 * socket up. We've got bigger problems than
414 * non-graceful socket closings.
415 */
416 if (net_ratelimit())
417 printk(KERN_INFO "TCP: time wait bucket table verflow
\n");

and

http://www2.randomlogic.com/linux_html/569068.html#47

/*
42 * This enforces a rate limit: not more than one kernel message
43 * every 5secs to make a denial-of-service attack impossible.
44 *
45 * All warning printk()s should be guarded by this function.
46 */
47 int net_ratelimit(void)



Regards

Thank you for your help.

netstat show me near 50 opened connections and 50 socket opened

Thank you

"Antoine EMERIT" <(E-Mail Removed)> a écrit dans le message de
news:XnF93D2F220455C7antoineemeritonlinef@212.135. 5.76...
> > time wait bucket table overflow
>
> According to the kernel source, you overflow a socket limit : too much
> connections or too much open connections in 5sec.
>
> How many connections are opened (netstat -a -n) ?
>
> How fast are the connections opened ? (use a tcp monitor software like
> iptraff). Maybe your under a denial of service, or there is too much
> request on one of your service (imap ? web ? ...).
>
>
> http://www2.randomlogic.com/linux_html/580828.html
>
> 412 /* Sorry, if we're out of memory, just CLOSE this
> 413 * socket up. We've got bigger problems than
> 414 * non-graceful socket closings.
> 415 */
> 416 if (net_ratelimit())
> 417 printk(KERN_INFO "TCP: time wait bucket table verflow
> \n");
>
> and
>
> http://www2.randomlogic.com/linux_html/569068.html#47
>
> /*
> 42 * This enforces a rate limit: not more than one kernel message
> 43 * every 5secs to make a denial-of-service attack impossible.
> 44 *
> 45 * All warning printk()s should be guarded by this function.
> 46 */
> 47 int net_ratelimit(void)
>
>
>
> Regards