23 Oct
2008
23 Oct
'08
11:25 a.m.
Hi
I was wondering how to achieve an architecture with two or more active
load-balancer nodes (kamailio+dispatcher module).
I have read how to setup two dispatcher nodes, one node as a master and the
other one as a backup.
The backup node doesn't process any traffic until master fails. But how to
make the traffic being processed by both load-balancers ? In the case for
instance the capacity of single node is not enough to process all incoming
traffic. Is there any recommended configuration (eg. using frontal
application-level swith)
Regards,
Pascal
23 Oct
23 Oct
1:16 p.m.
New subject: [Kamailio-Users] Architecture with load-balancing (dispatcher module)
Any "frontal application-level switch" would simply have the same liability.
Kamailio is a very high-throughput proxy that can handle huge amounts of
call setups per second. I think you can count on that.
Failing over around the load balancer node to a secondary load balancer
or distributing the traffic among multiple load balancers is a job best
left to the sending endpoint. For example, a DID origination provider's
switch or SBC can be set up to fail over calls to a different IP
endpoint for your SIP trunk if no response is received within a certain
amount of time. That is how this is typically done. At some point
you've got to say that you've done all you can do, and it's up to the
other side.
Pascal Maugeri wrote:
Hi
I was wondering how to achieve an architecture with two or more active
load-balancer nodes (kamailio+dispatcher module).
I have read how to setup two dispatcher nodes, one node as a master and
the other one as a backup.
The backup node doesn't process any traffic until master fails. But how
to make the traffic being processed by both load-balancers ? In the case
for instance the capacity of single node is not enough to process all
incoming traffic. Is there any recommended configuration (eg. using
frontal application-level swith)
Regards,
Pascal
------------------------------------------------------------------------
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--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599
2:47 p.m.
New subject: [Kamailio-Users] Architecture with load-balancing (dispatcher module)
Hello,
a solution I am using is to do shared IP (vrrp/ucarp). The typical
scenario is active-backup, when one share IP is used.
But you can do active-active by using two shared IP addresses, so will be
server1: active_ip_1 - backup_ip_2
server2: backup_ip_1 - active_ip_2
So each server is active and backs-up the other. This can be scaled,
with more than 2 servers, you need an IP per server, and you will have a
chain of active servers backing up next one. Based on who is backing up
who, you may have one or more servers down without affecting the service
You have to take care of balancing the traffic among the IP addresses.
Cheers,
Daniel
On 10/23/08 13:16, Alex Balashov wrote:
Any "frontal application-level switch" would
simply have the same liability.
Kamailio is a very high-throughput proxy that can handle huge amounts of
call setups per second. I think you can count on that.
Failing over around the load balancer node to a secondary load balancer
or distributing the traffic among multiple load balancers is a job best
left to the sending endpoint. For example, a DID origination provider's
switch or SBC can be set up to fail over calls to a different IP
endpoint for your SIP trunk if no response is received within a certain
amount of time. That is how this is typically done. At some point
you've got to say that you've done all you can do, and it's up to the
other side.
Pascal Maugeri wrote:
--
Daniel-Constantin Mierla
http://www.asipto.com
Hi
I was wondering how to achieve an architecture with two or more active
load-balancer nodes (kamailio+dispatcher module).
I have read how to setup two dispatcher nodes, one node as a master and
the other one as a backup.
The backup node doesn't process any traffic until master fails. But how
to make the traffic being processed by both load-balancers ? In the case
for instance the capacity of single node is not enough to process all
incoming traffic. Is there any recommended configuration (eg. using
frontal application-level swith)
Regards,
Pascal
------------------------------------------------------------------------
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Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
3:25 p.m.
On Thu, Oct 23, 2008 at 12:16 PM, Alex Balashov
<abalashov(a)evaristesys.com>wrote;wrote:
Any "frontal application-level switch" would
simply have the same
liability.
right.
Kamailio is a very high-throughput proxy that can handle huge amounts of
call setups per second. I think you can count on that.
Yes but you may need to use the power of all your load-balancer nodes. I
believe we can expect 10K transactions/seconds on a single load-balancer
node, but if you need to handle more traffic, load balancer node may be a
bottleneck.
Failing over around the load balancer node to a secondary load balancer or
distributing the traffic among multiple load balancers is a job best left to
the sending endpoint. For example, a DID origination provider's switch or
SBC can be set up to fail over calls to a different IP endpoint for your SIP
trunk if no response is received within a certain amount of time. That is
how this is typically done. At some point you've got to say that you've
done all you can do, and it's up to the other side.
Thanks Alex, it's a good point.
-pascal
Pascal Maugeri wrote:
Hi
I was wondering how to achieve an architecture with two or more active
load-balancer nodes (kamailio+dispatcher module).
I have read how to setup two dispatcher nodes, one node as a master and
the other one as a backup.
The backup node doesn't process any traffic until master fails. But how to
make the traffic being processed by both load-balancers ? In the case for
instance the capacity of single node is not enough to process all incoming
traffic. Is there any recommended configuration (eg. using frontal
application-level swith)
Regards,
Pascal
------------------------------------------------------------------------
_______________________________________________
Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599
5:33 p.m.
On Thu, Oct 23, 2008 at 8:25 AM, Pascal Maugeri
<pascal.maugeri(a)gmail.com> wrote:
On Thu, Oct 23, 2008 at 12:16 PM, Alex Balashov <abalashov(a)evaristesys.com>
wrote:
I am doing between 4-5K simultaneous transactions (100-150 calls per
second) on a Xeon quad core @3.20GHz and the overal cpu load is under
5%. I don't think that your load-balancer node will be a bottleneck.
You just need a properly tunned config file.
Any "frontal application-level switch" would simply have the same
liability.
right.
Kamailio is a very high-throughput proxy that can handle huge amounts of
call setups per second. I think you can count on that.
Yes but you may need to use the power of all your load-balancer nodes. I
believe we can expect 10K transactions/seconds on a single load-balancer
node, but if you need to handle more traffic, load balancer node may be a
bottleneck.
Failing over around the load balancer node to a secondary load balancer or
distributing the traffic among multiple load balancers is a job best left to
the sending endpoint. For example, a DID origination provider's switch or
SBC can be set up to fail over calls to a different IP endpoint for your SIP
trunk if no response is received within a certain amount of time. That is
how this is typically done. At some point you've got to say that you've
done all you can do, and it's up to the other side.
Thanks Alex, it's a good point.
-pascal
Pascal Maugeri wrote:
_______________________________________________
Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
Hi
I was wondering how to achieve an architecture with two or more active
load-balancer nodes (kamailio+dispatcher module).
I have read how to setup two dispatcher nodes, one node as a master and
the other one as a backup.
The backup node doesn't process any traffic until master fails. But how
to make the traffic being processed by both load-balancers ? In the case for
instance the capacity of single node is not enough to process all incoming
traffic. Is there any recommended configuration (eg. using frontal
application-level swith)
Regards,
Pascal
------------------------------------------------------------------------
_______________________________________________
Users mailing list
Users(a)lists.kamailio.org
http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599
5877
days inactive
5877
days old
4 comments
4 participants
participants (4)
-
Alex Balashov -
Daniel-Constantin Mierla -
Ovidiu Sas -
Pascal Maugeri