AW: multiple instances of one web application
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From: Gernot Homma
Subject: AW: multiple instances of one web application
Date: 16:51 on 16 Nov 2004
Subject: AW: multiple instances of one web application
Date: 16:51 on 16 Nov 2004
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Hello Harald,
=20
i think you can use instances instead of classes, under mod_perl 1 i =
have
the following setup (the code ist just to show how it should work ;.)
under mod_perl, i think you just have to change the name of the
directives(PerlHandler =3D> PerlResponseHandler), but i'm not shure, i =
haven't
tried it out until now.
=20
package MyApp {
sub handler {
# do your stuff here
}
}
=20
a startup script "startup.pl"
=20
$MyApp::Instance1 =3D new MyApp( # some configuration stuff);=20
$MyApp::Instance2 =3D new MyApp( # other configuration stuff);
=20
and in httpd.conf
=20
<VirtualHost xyz>
<Perl>
require 'startup.pl';
</Perl>
<Location /instance1>
SetHandler perl-script
PerlHandler $MyApp::Instance1
</Location>
<Location /instance2>
SetHandler perl-script
PerlHandler $MyApp::Instance2
</Location>
</VirtualHost>
=20
hope that helps,
=20
greetings gernot
-----Urspr=FCngliche Nachricht-----
Von: Harald Meier [mailto:meh1@xxx.xx]
Gesendet: Dienstag, 16. November 2004 15:36
An: modperl@xxxx.xxxxxx.xxx
Betreff: multiple instances of one web application
dear group,
i am developing a web application using apache 2.0 and mod_perl 2.0.
the application is split into a couple of perl modules.
i would like to install the same application more than once on the same =
web-server without changing the application code.
so
http://www.foo.bar/myapp/instance1 =
<http://www.foo.bar/myapp/instance1>;
calls instance 1
http://www.foo.bar/myapp/instance2 =
<http://www.foo.bar/myapp/instance2>;
calls instance 2
...
i have no idea how to handle the module/library problem to make sure =
that=20
each instance loads its own modules and if a module has changed, the =
correct
module is reloaded.
i cannot use <VirtualServer> because the servername will always be the
same.
my httpd.conf (works only for single instance):
PerlSwitches -w -T -M/opt/myapp/instance1
PerlModule Apache::Reload
PerlInitHandler Apache::Reload
PerlSetVar ReloadAll On
<Location /myapp/instance1>
SetHandler perl-script
PerlResponseHandler myapp
PerlOptions +SetupEnv
</Location>
thanks for your help!
harald.=20
=20
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<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>Hello
Harald,</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>i
think you can use instances instead of classes, under mod_perl 1 i have the
following setup (the code ist just to show how it should work
;.)</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>under
mod_perl, i think you just have to change the name of the directives(PerlHandler
=> PerlResponseHandler), but i'm not shure, i haven't tried it out until
now.</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>package MyApp {</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>sub
handler {</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> # do your stuff here</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>}</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>}</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>a
startup script "startup.pl"</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>$MyApp::Instance1 = new MyApp( # some configuration stuff);
</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>$MyApp::Instance2 = new MyApp( # other configuration
stuff);</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>and in
httpd.conf</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2><VirtualHost xyz></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2><Perl></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> require
'startup.pl';<BR></Perl></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2><Location /instance1></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> SetHandler perl-script</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> PerlHandler $MyApp::Instance1</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></Location></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2><Location /instance2></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> SetHandler perl-script</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2> PerlHandler $MyApp::Instance2</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></Location></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></VirtualHost></FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff size=2>hope
that helps,</FONT></SPAN></DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=797274116-16112004><FONT face=Arial color=#0000ff
size=2>greetings gernot</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Ursprüngliche Nachricht-----<BR><B>Von:</B> Harald Meier
[mailto:meh1@xxx.xx]<BR><B>Gesendet:</B>; Dienstag, 16. November 2004
15:36<BR><B>An:</B> modperl@xxxx.xxxxxx.xxx<BR><B>Betreff:</B> multiple
instances of one web application<BR><BR></FONT></DIV>dear group,<BR><BR>i am
developing a web application using apache 2.0 and mod_perl 2.0.<BR>the
application is split into a couple of perl modules.<BR><BR>i would like to
install the same application more than once on the same <BR>web-server
without changing the application code.<BR><BR>so<BR> <A
href="http://www.foo.bar/myapp/instance1">http://www.foo.bar/myapp/instance1</A>;
calls instance 1<BR> <A
href="http://www.foo.bar/myapp/instance2">http://www.foo.bar/myapp/instance2</A>;
calls instance 2<BR> ...<BR><BR>i have no idea how to handle
the module/library problem to make sure that <BR>each instance loads its
own modules and if a module has changed, the correct <BR>module is
reloaded.<BR><BR>i cannot use <VirtualServer> because the
servername will always be the same.<BR><BR>my httpd.conf (works only for
single instance):<BR><BR> PerlSwitches -w -T
-M/opt/myapp/instance1<BR><BR>
PerlModule Apache::Reload<BR>
PerlInitHandler Apache::Reload<BR>
PerlSetVar ReloadAll On<BR><BR>
<Location /myapp/instance1><BR>
SetHandler
perl-script<BR>
PerlResponseHandler
myapp<BR>
PerlOptions
+SetupEnv<BR> </Location><BR><BR><BR>thanks for your
help!<BR>harald. <BR>
<DIV><FONT face=Arial size=2></FONT> </DIV></BLOCKQUOTE></BODY></HTML>
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