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RE: Failover with a high persistent timeout

To: "'lvs-users@xxxxxxxxxxxxxxxxxxxxxx'" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: Failover with a high persistent timeout
From: Matthias Krauss <MKrauss@xxxxxxxxxxxxxx>
Date: Wed, 11 Sep 2002 11:28:02 +0200
Hello,

Julian Anastasov wrote:

>It is true that we don't have much/any control in the conn expiration
process. 
>May be the devel IPVS 1.1.0 will solve this problem. Currently, the only
way to forget 
>about all connections is to unload the ipvs module. May be a new conn
expiration method 
>can allow the conn entries to be deleted from any context.

thanks for this info, ip_vs doesnt want to get unloaded / device busy, also
something
strange happens to the expire time which i think is the reason for "device
busy" , 
yesterday evening i left the lvs with a 2 hours persistant timeout for the
night, i
made a conx request and closed it afterwards.

IPVS connection entries
pro expire   state       source            virtual           destination

TCP 115:58.78 NONE        venus.intern:0    lbs.intern:65535
hh-fra-in01.intern:65535

today for my surprise i see:
 
IPVS connection entries
pro expire   state       source            virtual           destination

TCP 357913:56.47 NONE        venus.intern:0    lbs.intern:65535
hh-fra-in01.intern:65535

there was no request during this time, the time difference between this to
lists is
around 14 hours.

i understand the problem occuring with high persistant timeout and will see
how to get
my boss understand this too and change our logic here ....

Regards
Matthias





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