You are my hero. The first feature on mod_cluster's webpage I exactly  
what I'm looking for. Thank you.

I'll report here after I've had some time to check it out.

-Mark

On May 9, 2010, at 2:53 AM, "Mark Thomas" <ma...@apache.org> wrote:

> On 07/05/2010 23:20, Smith, Mark wrote:
>>> -----Original Message-----
>>> From: Pid [mailto:p...@pidster.com]
>>> There are a couple of linux load balancer projects that might  
>>> work, if
>>> you can ditch HTTPD.  E.g. www.linuxvirtualserver.org
>>
>> We use LVS to balance load across our Apache layers already, so I'm  
>> quite familiar with it.
>>
>> It does do what I want here, except that there are several things  
>> we need from Apache:  Access control, SSL termination, URL path  
>> based routing, etc.
>>
>> I considered using ipvsadm on the Apache box to route traffic to  
>> TomCats, but there is another EC2 specific problem:  All the  
>> routing methods LVS uses don't work on EC2 because they _ONLY_  
>> route TCP, UDP and ICMP:
>> - Direct Routing messes with Ethernet headers.  Not a chance.
>> - Tunneling uses IP-in-IP tunneling, which is neither TCP, UDP nor  
>> ICMP. *grump*
>> - NAT gets blocked by the EC2 firewalls, which makes sense.
>> - I even tried setting up GRE tunnels; no love.
>>
>> So, yeah.  Thought of that already too.  :-)
>>
>> Anyone else have any ideas?  So far, modifying /etc/hosts looks  
>> like the best solution, even though it tips my kludge-o-meter past  
>> my comfort zone.
>
> Take a look at mod_cluster from JBoss. I haven't looked at it for a
> while but when I saw it at ApacheCon EU last year it looked like it
> might be what you are looking for.
>
> Mark
>
>
>
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