Hi,
thnx for your fast reply .
Got no ssl sessions .
There's no error code, I'm simply getting a 'Unable to connect' , as
if the server isn't there ...
I'm not expecting the active node to 'go down that often' :p if normal
behaviour would be some seconds until the passive node takes over I
could live with that, but if I've configured something wrong or
missing some important part I need to make the failover seamless I
have to make this right :p
--
--
Joar Jegleim
Homepage: http://cosmicb.no
Linkedin: http://no.linkedin.com/in/joarjegleim
fb: http://www.facebook.com/joar.jegleim
AKA: CosmicB @Freenode
--
On 13 December 2012 13:36, Samuel Martín Moro faus...@gmail.com wrote:
On Thu, Dec 13, 2012 at 1:19 PM, Joar Jegleim joar.jegl...@gmail.com
wrote:
Hi !
I'm in the process of setting up a HA nginx proxy using carp in
FreeBSD 9.0-RELEASE .
I've got a active/passive setup where both nodes are running an nginx
server listening to carp0 .
If I issue: ifconfig carp0 down on the active node, the passive node
takes over immediately .
But when I for instance issue a simple reboot from the master node,
then try accessing any web page through the proxy I'm getting a
connection error for 3-5 seconds .
It's kinda strange because if I ping the carp0 ip from my workstation
when reboot'ing the master I don't see this kind of drop in connection
(that is the passive node immediatly becomes master and reply my ping)
I've tried having nginx listen to all available interfaces, same result.
I've tried writing a simple devd.conf rule such as:
notify 0 {
match system IFNET;
match typeLINK_UP;
match subsystem carp*;
action /root/bin/carpcontrol.sh $type $subsystem;
};
notify 0 {
match system IFNET;
match typeLINK_DOWN;
match subsystem carp*;
action /root/bin/carpcontrol.sh $type $subsystem;
};
where carpcontrol.sh got:
#!/bin/sh
type=$1
subsystem=$2
echo $(date) called with type=$type and subsystem=$subsystem
/var/log/carp/carp.log
/usr/local/etc/rc.d/nginx restart /var/log/kit/carp.log
2/var/log/carp/carp.log
which doesn't help, I still get 3-5 seconds drop in connection if I
reboot the master node .
I've also tried to just cut the power for the master node, still
getting those 3-5 seconds drop .
I've set the following in sysctl.conf
#Accept incoming CARP packets. Enabled by default.
net.inet.carp.allow=1
#This option downs all of the CARP interfaces on the host when one of
them goes down. Disabled by default
net.inet.carp.preempt=1
#A value of 0 disables any logging. A Value of 1 enables logging of
bad CARP packets. Values greater than 1 enables logging of state
changes for the CARP interfaces. The default value is 1.
net.inet.carp.log=2
--
--
Joar Jegleim
Homepage: http://cosmicb.no
Linkedin: http://no.linkedin.com/in/joarjegleim
fb: http://www.facebook.com/joar.jegleim
AKA: CosmicB @Freenode
--
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Hi,
What error code are you encountering?
CARP would only deal with sharing your virtual IP.
First, you could check about pfsync, which would sync PF states through your
CARP cluster.
Then, are you sure there is no session handling/cookies stuff on your nginx
proxies?
Or even: using SSL? Could this be related to your SSL handshake not being
shared?
Keep in mind CARP runs on OSI layer 23. It won't be sufficient dealing with
applicative aspects of redundancy.
Also, while playing with devd may fits your requirements, I assume you
have'nt heard of ifstated?
Being used to OpenBSD CARPs, I'm always using ifstated to ensure proper
balance.
It seems ifstated is in FreeBSD ports tree: give it a shot!
Regards.
--
Samuel Martín Moro
{EPITECH.} 2011
SMILE - Open Source Solutions
Nobody wants to say how this works.
Maybe nobody knows ...
Xorg.conf(5)
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