Robin Wilson wrote:
Where are you putting the ProxyPass (which file, where in the file)?
Also, did you have this in the file somewhere before the ProxyPass:
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
AND... In your Apache "modules" directory, is there a 'mod_proxy_ajp.so' file?
Lastly, this is what our connector looks like in the 'server.xml' file for the
tomcat instance:
<Connector port="8009" protocol="AJP/1.3"
/>
So I'm not sure if the 'address' is causing the problem or not.
Keep in mind, 'proxy' (and AJP) don't work the same as HTTP exactly. The
rewrites will just re-point your browser to use the new URL (so rewriting to an
'ajp://' protocol will break the browser - since it doesn't speak 'ajp'
protocol). The proxy actually passes the request _through_ the Apache HTTP
process - to the Tomcat's AJP process - so the browser only talks 'http' to the
Apache service, while Apache talks 'ajp' to the Tomcat service. It's the
difference of:
Browser --HTTP request--> Apache
Browser <--HTTP (redirect to Tomcat path)-- Apache
Browser --HTTP request--> Tomcat
Browser <--HTTP response-- Tomcat
vs.
Browser --HTTP request--> Apache --AJP (proxied request)--> Tomcat
Browser <--HTTP response-- Apache <--AJP (proxied response)-- Tomcat
(I'll admit, I could be wrong on this - but that's how I think it works...)
I do have proxy_ajp_module loaded.
I have the ProxyPass (or RewriteRule) in a <VirtualHost>
The [P] at the end of the RewriteRule causes Apache to pass the request
through the proxy - not to send a redirect to the browser.
Have you successfully used a CometProcessor behind an AJP proxy?
-Stephen
--
Robin D. Wilson
Director of Web Development
KingsIsle Entertainment, Inc.
CELL: 512-426-3929
DESK: 512-623-5913
www.KingsIsle.com
-----Original Message-----
From: Stephen Byrne [mailto:step...@lincware.com]
Sent: Wednesday, January 27, 2010 9:54 AM
To: Tomcat Users List
Subject: Re: CometProcessor proxied through Apache httpd
Robin Wilson wrote:
Have you tried using mod_proxy_ajp?
ProxyPass /some/path ajp://tomcat.host.domain:8009/some/other/path
Yes, I did try this, and got the same results as using RewriteRule - a
405 error.
--
Robin D. Wilson
Director of Web Development
KingsIsle Entertainment, Inc.
CELL: 512-426-3929
DESK: 512-623-5913
www.KingsIsle.com
-----Original Message-----
From: Stephen Byrne [mailto:step...@lincware.com]
Sent: Wednesday, January 27, 2010 9:27 AM
To: users@tomcat.apache.org
Subject: CometProcessor proxied through Apache httpd
Is there a way to get CometProcessor to work when proxying through
Apache httpd? Here is what I have tried:
I have an HttpServlet implementing CometProcessor.
When I have a Tomcat connector like this:
<Connector port="8912" protocol="HTTP/1.1"
address="192.168.1.30" />
and I connect to it directly, everything works wonderfully - I get
CometEvent.EventType.READ events as I send data from the client.
When I have a Tomcat connector like this:
<Connector port="8911" protocol="HTTP/1.1"
address="127.0.0.1" />
and have Apache httpd proxy requests like this:
RewriteRule ^/path/to/servlet http://localhost:8911/path/to/servlet [P]
I get exactly one CometEvent.EventType.READ event with all of the data
after I finish sending data from the client.
When I have a Tomcat connector like this:
<Connector port="8909" protocol="AJP/1.3"
address="127.0.0.1" />
and have Apache httpd proxy requests like this:
RewriteRule ^/path/to/servlet ajp://localhost:8909/path/to/servlet [P]
I get zero CometEvents and the client gets an HTTP error 405 (Method Not
Allowed). I was hoping that AJP would work so I could try using
ProxyPass with flushpackets=on, but the Apache documentation says that
only works with AJP.
If I use Http11NioConnector instead of HTTP/1.1 and try to proxy with
Apache, I get the same results as if I were using the HTTP/1.1 connector.
My client code (Java) is:
// Direct to Tomcat (HTTP)
//URL url = new URL( "http://server:8912/path/to/servlet"; );
// Apache proxies to Tomcat
URL url = new URL( "http://server/path/to/servlet"; );
HttpURLConnection connection = (HttpURLConnection)
url.openConnection();
connection.setChunkedStreamingMode( 1 );
connection.setDoOutput( true );
connection.setDoInput( true );
connection.connect();
OutputStream os = connection.getOutputStream();
for ( int i = 0; i < 10; i++ ) {
os.write( 1 );
os.flush();
Thread.sleep( 1000 );
}
os.close();
log.debug( "response:" + connection.getResponseCode() );
log.debug( "response:" + connection.getResponseMessage() );
connection.disconnect();
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