LVS backup router not taking role

Sat Jan 21 13:10:24 UTC 2012

HI tapan,

there are no firewall issue, to reduce the firewall problem - i truned off
the firewall off on all the four machine. I am still thinking what could be
the issue. how do i increase the log level for pulse ?

K

On Sat, Jan 21, 2012 at 12:28 PM, Tapan Kumar Thapa <
tapan.thapa2000 at gmail.com> wrote:

> Can you please ensure that both active and backup router is having no
> firewall issue in-between?
>
>
> Sent from my iPhone
>
> Regards
> Tapan Kumar Thapa
> Manager-Tech Support
> HT Mobile Solutions Limited
> Mob-919871701375
>
> On Jan 21, 2012, at 2:25 PM, Khapare Joshi <khapare77 at gmail.com> wrote:
>
> 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>
> 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>
>> khapare77 at gmail.com> wrote:
>>
>>
>>
>> On Wed, Jan 18, 2012 at 1:59 PM, Ranjith Rajaram < <rrajaram at redhat.com><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
>>>
>>>
>>> _______________________________________________
>>> Piranha-list mailing list <Piranha-list at redhat.com> <Piranha-list at redhat.com>Piranha-list at redhat.com <https://www.redhat.com/mailman/listinfo/piranha-list> <https://www.redhat.com/mailman/listinfo/piranha-list>https://www.redhat.com/mailman/listinfo/piranha-list
>>>
>>>
>>>
>>> _______________________________________________
>>> Piranha-list mailing list
>>>  <Piranha-list at redhat.com> <Piranha-list at redhat.com>
>>> Piranha-list at redhat.com
>>>  <https://www.redhat.com/mailman/listinfo/piranha-list><https://www.redhat.com/mailman/listinfo/piranha-list>
>>> https://www.redhat.com/mailman/listinfo/piranha-list
>>>
>>
>> _______________________________________________
>> Piranha-list mailing list
>> <Piranha-list at redhat.com>Piranha-list at redhat.com
>>  <https://www.redhat.com/mailman/listinfo/piranha-list>
>> https://www.redhat.com/mailman/listinfo/piranha-list
>>
>>
>> _______________________________________________
>> Piranha-list mailing list
>>  <Piranha-list at redhat.com>Piranha-list at redhat.com
>>  <https://www.redhat.com/mailman/listinfo/piranha-list>
>> https://www.redhat.com/mailman/listinfo/piranha-list
>>
>
> <lvs.cf>
>
> _______________________________________________
> Piranha-list mailing list
> Piranha-list at redhat.com
> https://www.redhat.com/mailman/listinfo/piranha-list
>
>
> _______________________________________________
> Piranha-list mailing list
> Piranha-list at redhat.com
> https://www.redhat.com/mailman/listinfo/piranha-list
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/piranha-list/attachments/20120121/fb06da88/attachment.htm>