Thanks Koen. But I still have some doubts
On Fri, Apr 20, 2012 at 6:12 PM, Koen Deforche <[email protected]> wrote:
> Hey,
>
> Op 19 april 2012 19:42 heeft Mohammed Rashad
> <[email protected]> het volgende geschreven:
>
> > My doubts.
> > 1.
> > How haproxy does load balancing for wt apps
> >
> > because in wt wiki i found this
> >
> > $ app.wt --session-id-prefix=wt1 --http-port 9090 ...
> > $ app.wt --session-id-prefix=wt2 --http-port 9091 ...
> >
> > here what i understood is we are running two instances of app.wt. How the
> > load balancing works here. There may be something with
> --session-id-prefix
> > but I dont know
> > also the two instances are on two ports but a user will access from
> browser
> > as mydomain.com:9090/app.wt or mydomain.com:9091/app.wt
>
> This is only part of the configuration. Haproxy is the server (running
> on port 80) which will be accessed by the user, e.g.
> http://mydomain.com/
So the user wil be accesing the app.wt on http://mydomain.com if haproxy is
running on port 80
and haproxy will send requests to different servers on a roundrobin
algorithm to sessions like wt1,wt2 etc..
Am I in the right direction
>
>
> Behind that you may deploy multiple wthttpd servers, each running on
> potentially a different server and/or different port number.
>
> > 2. Can we use apache hadoop with Wt because we are moving our
> application to
> > a cloud. so I also need to know can we use hadoop and haproxy in
> > conjunction with Wt
>
> Yes you can use apache hadoop -- as far as I understand there are no
> particular issues there ?
>
Which one is better hadoop or haproxy. I googled but cant find any
differences even though there may be many
>
> > 3. How to use proxypass in haproxy for wt. so that i dont need to depend
> on
> > apache
>
> The basic configuration in
>
> http://redmine.webtoolkit.eu/projects/1/wiki/Using_HAProxy_as_a_reverse_proxy
> really shows exactly that.
>
> > 4. I am using monit for wthttpd applications. sometimes in firefox the
> > browser will keep on flashing/refershing and sometimes not
> >
> > here is my monitrc
> >
> > check process myapp.wt with pidfile /home/projects/myapp.wt.pid
> > start program = "/home/projects/wthttpd.sh start
> /home/projects/myapp.wt /
> > 8080" with timeout 3 seconds
> > stop program = "/home/projects/wthttpd.sh stop
> /home/projects/myapp.wt"
> > if failed host 10.2.32.19 port 8080 protocol http request /monittoken
> then
> > restart
> >
> > Is there any problem with my monitrc
>
> I'm not sure, does monit.log suggest that it is restarting your process ?
> Sometimes monit goes a bit wonky, for example because it misses the actual
> pid.
>
> Regards,
> koen
>
>
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--
Regards,
Rashad
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