LVS backup router not taking role

[Khapare Joshi]

hi tapan

Here are is my lvs.cf file

IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  192.168.1.3:80 wlc
  -> 192.168.1.4:80           Route   1      0          0
  -> 192.168.1.5:80           Route   1      0          0

and I have ip forward enabled on my active router. I also allowed firewall
from lvs router to real server and vice versa. I am using direct routing
and added line in arptable in REAL server as :

# Generated by arptables-save v0.0.8 on Fri Jan 20 20:23:23 2012
*filter
:IN ACCEPT [504508:14126224]
:OUT ACCEPT [237:6636]
:FORWARD ACCEPT [0:0]
[346:9688] -A IN -d 130.208.165.193 -j DROP
[0:0] -A OUT -d 192.168.1.3 -o eth0 -j mangle --mangle-ip-s 192.16.1.4
COMMIT
# Completed on Fri Jan 20 20:23:23 2012


It seems it works for a while then after certain while I only get response
from one real server. There seem somewhere I am doing wrong

Khapare




where else could be the issue ?

K

On Wed, Jan 18, 2012 at 4:16 PM, Tapan Kumar Thapa <
tapan.thapa2000 at gmail.com> wrote:

> Can you please post your complete lvs.cfg?
>
> Sent from my iPhone
>
> Regards
> Tapan Kumar Thapa
> Manager-Tech Support
> HT Mobile Solutions Limited
> Mob-919871701375
>
> On Jan 18, 2012, at 9:28 PM, Khapare Joshi <khapare77 at gmail.com> wrote:
>
>
>
> On Wed, Jan 18, 2012 at 1:59 PM, Ranjith Rajaram < <rrajaram at redhat.com>
> rrajaram at redhat.com> wrote:
>
>> **
>>
>>
>> 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
>>
>>
>>
>> I configured these parameter as this  :
>>
> Heartbeat interval (seconds):   Assume dead after (seconds):   Heartbeat
> runs on port:   Monitor NIC links for failures:   Syncdaemon:
> and copied lvs.cf to redudant server as well.
>
>>
>>
>> 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 ?]
>>
>
> I have two servers for lvs i.e lvs1 lvs2 and configured using piranha
> tool. I started pulse on these two machines. Rest of other four server I
> only started httpd not the pulse
>
>>
>> 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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>>
>>
>>
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