[lvs-users] Some users slow loading..

Gerry Reno greno at verizon.net
Wed Aug 1 05:57:44 BST 2007


Dan Baughman wrote:
> I am trying to gather a sniffing session from both of my sides of the
> connection now. So far, they have both been comcast users.
>
> On 7/31/07, Joseph Mack NA3T <jmack at wm7d.net> wrote:
>   
>> On Tue, 31 Jul 2007, Dan Baughman wrote:
>>
>>     
>>> There are some users that when acessing my page through
>>> the load balancer experience a 45 second load time, but
>>> when going directly to either server takes only ten
>>> seconds. I'm doing one nic, two network type load
>>> balancing. (we have one loadbalancer and two real servers)
>>>       
>> this mysteriously happens sometimes. There's always some
>> rational explanation after the fact, but it isn't obvious at
>> the time. It happens because there are 3 nodes involved in
>> making a 2 node connection. Things that are taken for
>> granted in a 2 node connection don't always work in a 3 way
>> connection.
>>
>> You may have to feret it out yourself. Possible things are
>>
>> o someone has to do DNS and it's failing
>>
>> o you have identd on the realserver (turn it off)
>>
>> o there's some routing wierdness and icmp's etc are having
>> to figure out the right path.
>>
>>     
I'm seeing this problem as well. It is mainly on first logins after some 
period of time. It will take anywhere from 45-60 secs for the user to 
get logged in and then everything seems fine. I had some delays before 
this too but when I restarted apache that time everything was ok after 
that. Now I am not so sure that it was apache because I also restarted 
keepalived.


Gerry





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