>Ok, I see, I think I get it. :D
>
>You've got A and B. A is the primary and it is offloading some
>processing to B through your JRun cluster. In this case, you don't need
>a hardware load balancer, as your site is on one real server.
>
>Right now, server B doesn't have/need/use an HTTP server. Run a netstat
>-n and you'll only see connections to server A and maybe your database
>or other external processes. All of B's HTTP traffic is going through A.
Actually, on each machine, Apache is configured to hit that machine's cluster.*
So, each machine is supposed to be equal in the farm (there's no
primary/secondary, really). So, in my case, what's happening is HTTP traffic
can go through either machine (courtesy of my hardware load balancer), but each
request through a given machine has only a 50% chance of being locally produced.
>So, you want to know if server A fails, how can you redirect to server B.
Well, since they're load balanced, I want to simply to yank the offending
machine out of the farm... but yeah, same sorta idea.
> From what I remember, and I haven't had to fool with it for about a
>year, you can make a JRun cluster to share sessions but not offload
>processing to each other.
That's the crux of my situation (and what I tried, but failed to convey in my
subject line ;-). However, I have no clue how to accomplish it, do you?
(Fingers crossed)
>Your web content will be stored on both
>servers and they will probably both have web servers on them
Yup, I've already got it set up this way.
>In this situation, both servers, A and B, are facing the public. This
>way, they're both visible to your LB, which will run health checks, etc.
Yes, if I can figure out how to disable the "offloading of processing" to
remote machines.
Thanks yet again,
Jamie
* And in fact, I know of no other way to connect Apache to it, since it seems
the cluster hogs the local instance's proxy port (51000) when the cluster is
created(?)
<IfModule mod_jrun.c>
JRunConfig Verbose false
JRunConfig Apialloc false
JRunConfig Ssl false
JRunConfig Ignoresuffixmap false
JRunConfig Serverstore /usr/local/jrun/lib/wsconfig/2/jrunserver.store
JRunConfig Bootstrap 127.0.0.1:51000
#JRunConfig Errorurl <optionally redirect to this URL on errors>
AddHandler jrun-handler .jsp .jws .cfm .cfml .cfc
</IfModule>
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