LVS backup router not taking role

[Ranjith Rajaram]

On 01/18/2012 07:22 PM, Khapare Joshi wrote:
> Hi, all,
>
> first time poster. I recently deployed lvs (primary and backup) with 
> piranh and ran into few issues. I turned off the primary lvs to see 
> backup lvs will take over. However it does not take over right a way 
> seem require restart pulse. How does this fail over works if primary 
> goes down ? should not this be happen right a way if primary lvs goes 
> down ?
If primary goes, secondary has to take it over

It depends on deadtime

  deadtime = n
               Length of time before a node is declared dead and IP 
takeover occurs.

lvs.cf needs to be checked together with system configuration.  Look at 
/var/log/messages




>
> And I have four real server- and it sees if one goes down whole system 
> is unavailable (httpd service). Then I restart pulse and get  the 
> httpd service. I do not think this is right. could be please guide me 
> in right direction to make reliable.
>

Do you have separate boxes for LVS directors and real server's ? [Are 
you running pulse on any of the two real server's ?]

check the output of ipvsadm -L -n from the active lvs server [paste it here]


> PS: I use direct routing and have
>
> net.ipv4.conf.lo.arp_ignore = 1
> net.ipv4.conf.lo.arp_announce = 2
>
> in /etc/sysctl.conf
>
> sorry for too many question.
>
> Thanks
>
>
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