Re: LVS backup router not taking role
Ranjith Rajaram <[email protected]> Wed, 18 Jan 2012 19:29:55 +0530
| Newsgroups | gmane.linux.redhat.piranha |
|---|---|
| Message-ID | <[email protected]> |
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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
>
>
> _______________________________________________
> Piranha-list mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/piranha-list
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On 01/18/2012 07:22 PM, Khapare Joshi wrote:
<blockquote
cite="mid:CABHhH+sbBaQzJVXKm4Zg59UiSj5TvnV3eGvJOFB51e3XfD5fKQ@mail.gmail.com"
type="cite">
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charset=ISO-8859-1">
Hi, all,<br>
<br>
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 ?<br>
</blockquote>
If primary goes, secondary has to take it over<br>
<br>
It depends on deadtime<br>
<br>
deadtime = n<br>
Length of time before a node is declared dead and IP
takeover occurs.<br>
<br>
lvs.cf needs to be checked together with system configuration. Look
at /var/log/messages<br>
<br>
<br>
<br>
<br>
<blockquote
cite="mid:CABHhH+sbBaQzJVXKm4Zg59UiSj5TvnV3eGvJOFB51e3XfD5fKQ@mail.gmail.com"
type="cite">
<br>
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.<br>
<br>
</blockquote>
<br>
Do you have separate boxes for LVS directors and real server's ?
[Are you running pulse on any of the two real server's ?]<br>
<br>
check the output of ipvsadm -L -n from the active lvs server [paste
it here]<br>
<br>
<br>
<blockquote
cite="mid:CABHhH+sbBaQzJVXKm4Zg59UiSj5TvnV3eGvJOFB51e3XfD5fKQ@mail.gmail.com"
type="cite">PS: I use direct routing and have <br>
<br>
net.ipv4.conf.lo.arp_ignore = 1<br>
net.ipv4.conf.lo.arp_announce = 2<br>
<br>
in /etc/sysctl.conf<br>
<br>
sorry for too many question.<br>
<br>
Thanks
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