OpenVZ Forum


Home » Mailing lists » Users » time wait bucket table overflow
time wait bucket table overflow [message #10202] Mon, 12 February 2007 14:31 Go to next message
Thomas Kramer is currently offline  Thomas Kramer
Messages: 2
Registered: February 2007
Junior Member
Hi there,

on a very busy OpenVZ Server i have a lot of:

Feb 12 15:25:51 server12 kernel: TCP: time wait bucket table overflow

entries in my syslog file.

Any ideas?

Kernel is 2.6.18-028test015.1+31-ovz-smp

--
Regards,
Thomas
Re: time wait bucket table overflow [message #10203 is a reply to message #10202] Mon, 12 February 2007 15:39 Go to previous messageGo to next message
dev is currently offline  dev
Messages: 1693
Registered: September 2005
Location: Moscow
Senior Member

Thomas,

can you check this one please:
http://bugzilla.openvz.org/show_bug.cgi?id=460

Thanks,
Kirill

> Hi there,
>
> on a very busy OpenVZ Server i have a lot of:
>
> Feb 12 15:25:51 server12 kernel: TCP: time wait bucket table overflow
>
> entries in my syslog file.
>
> Any ideas?
>
> Kernel is 2.6.18-028test015.1+31-ovz-smp
>
Re: time wait bucket table overflow [message #10208 is a reply to message #10203] Mon, 12 February 2007 16:10 Go to previous messageGo to next message
Thomas Kramer is currently offline  Thomas Kramer
Messages: 2
Registered: February 2007
Junior Member
Hi Kirill,

> can you check this one please:
> http://bugzilla.openvz.org/show_bug.cgi?id=460

thx. I canīt find any value for /proc/sys/net/ipv4/
tcp_max_tw_buckets_ve and changing /proc/sys/net/ipv4/
tcp_max_tw_kmem_fraction to 256 did not solve this problem.

Regards,
Thomas
Re: time wait bucket table overflow [message #10217 is a reply to message #10208] Mon, 12 February 2007 21:34 Go to previous message
kir is currently offline  kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia
Senior Member

Thomas Kramer wrote:
> Hi Kirill,
>
>> can you check this one please:
>> http://bugzilla.openvz.org/show_bug.cgi?id=460
>
> thx. I canÂīt find any value for
> /proc/sys/net/ipv4/tcp_max_tw_buckets_ve and changing
> /proc/sys/net/ipv4/tcp_max_tw_kmem_fraction to 256 did not solve this
> problem.
Most probably the right name is
/proc/sys/net/ipv4/tcp_max_tw_buckets_ub. It is per-VE timewait bucket
limit, apparently it's set too low (1024). Please increase it several
times (8x or 16x) and report your results to the above bug.
Previous Topic: oops
Next Topic: error on login
Goto Forum:
  


Current Time: Tue Mar 19 05:50:55 GMT 2024

Total time taken to generate the page: 0.02542 seconds