Hi Andre,
Thanks a lot for your help and time , i really appreciate your patience
to explain me everything step by step.
I did the exactly what u suggested. I have tomcat running on port 9080(as
well as 8180) and 8009 is ajp listner.
http://www.jaatmusic.com:9080
http://www,jaatmusic.com:8180
http://www.jaatmusic.com:8009
all working
My Server.xml is like this
<Connector port="9080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="9443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8180" minProcessors="5" maxProcessors="75"
enableLookups="true" acceptCount="10" debug="0"
connectionTimeout="20000" useURIValidationHack="false" />
<Connector className="org.apache.ajp.tomcat4.Ajp13Connector"
port="8009" minProcessors="5" maxProcessors="75"
acceptCount="10" debug="0"/>
put these two lines in apache
JkMount /ex testWorker
JkMount /ex/* testWorker
I am sorry but it still not working.
*In apache log i got this*
File does not exist: /home/jaatadmin/public_html/ex*
( NOTE : /home/jaatadmin/public_html* is my default apache directory for
this domain, so when u just write the jaatmusic.com it picks index.html from
this dir, but when i had alias there it was picking index.html from
servelet-examples folder of webapps of tomcat dir, anyways alias is
different story)
*Nothing in tomcat log*
nothing in tomcat related to this request
*In MOD JK Log i got this*
[Sun Jul 20 17:01:35.425 2008] [29926:3079694048] [debug]
jk_map_to_storage::mod_jk.c (3190): missing uri map for jaatmusic.com:
/ex/servlet/HelloWorldExample
*In Browser i am getting following error message from apache when i access
this url*
http://www.jaatmusic.com/ex <http://www.jaatmusic.com/examples>
or this link http://www.jaatmusic.com/ex/servlet/HelloWorldExample
Not Found
The requested URL /ex/ was not found on this server.
------------------------------
Apache/2.2.8 (Fedora) Server at www.jaatmusic.com Port 80
Thanks,
Ravi.
On Sun, Jul 20, 2008 at 11:31 PM, André Warnier <[EMAIL PROTECTED]> wrote:
> Do not despair.
>
> If you have removed the Alias line, it is totally normal that your first
> link does not work. That's because in your case that link is *supposed* to
> be served by Apache, but there is no file to serve at
> /usr/java/tomcat-5.5/webapps/servlets-examples/servlet/HelloWorldExample
> (and anyway, leave that Alias line out. It is not good, for reasons I will
> give you later).
>
> The problem is only why it does not pass the
> /ex/servlet/HelloWorldExample
> to Tomcat
>
> So, let's start from the beginning.
> Follow these steps, and stop whenever it does not give the expected answer.
>
> 1) verify that Tomcat, by itself, is started and listening :
> Your Tomcat should have a HTTP connector (probably at port 8180)
> You should check in the server.xml file of Tomcat.
> It should look approximately like this :
> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
> port="8180" minProcessors="5" maxProcessors="75"
> enableLookups="true" acceptCount="10" debug="0"
> connectionTimeout="20000" useURIValidationHack="false" />
> (Look at the "port=xxxx"), and whenever you see "xxxx" below, replace it by
> that port number.
> If this connector is not activated (commented out), activate it, we will
> need it for the tests below. Restart Tomcat if necessary.
>
> You can check if Tomcat is listening on that port with netstat :
> netstat -an | grep xxxx (where xxxx is the port number above)
> You should see a line ending in "LISTEN".
>
> 2) Try to acces that HTTP connector (from your browser) with :
> http://www.jaatmusic.com:xxxx
> (where xxxx is the same port above)
> You should get some standard Tomcat Welcome page.
>
> 3) Now try
> http://www.jaatmusic.com:xxxx/examples
> You should see the examples menu page
>
> 4) then, on that same page, click the link for the HelloWorld example.
> Does it run the HelloWorld servlet ?
>
> If yes, then go back to the menu page, and hover with the cursor above the
> "HellowWorld" example link, and note the exact URL that it shows for that
> link (at the bottom of your browser page).
> It should be something like :
> http://www.jaatmusic.com:xxxx/examples/HelloWorld
> (It is important to make sure of that, because that is the URL that Tomcat
> expects to run the example, even later when we will go through the mod_jk
> connector)
>
> 5) check if Tomcat is listening *also* on the port of your AJP connector
> netstat -an | grep 8009
> Do you also see a "LISTEN" line ?
> (I am sure it is, because I can see it from outside. You will probably
> need to do someting about that later).
>
> 6) try to connect to that port with telnet :
> telnet www.jaatmusic.com 8009
> Do you get a connection ?
> (if yes, try to type something, and then close the connection. Your Tomcat
> logs should now show something, even if it is garbage).
> (something like :
> 2008-07-21 00:29:44 Ajp13Processor[8010][5] [Ajp13] incomplete read, waited
> #-1 got only 0
> )
>
> If all the above is ok, then Tomcat should be fine, and we can go back and
> check the Apache side.
>
> 7) replace your JkMount line in Apache by these 2 lines :
> JkMount /examples testWorker
> JkMount /examples/* testWorker
> and restart Apache
>
> 8) enter
> http://www.jaatmusic.com/examples
> (notice that this time you are *not* entering the port xxxx, because you
> want to connect through Apache, not go directly to Tomcat).
> Do you see the same Tomcat examples menu page as before ?
> If not, what do you see ? an error page of Apache, or one of Tomcat ?
>
> André
>
>
>
>
> Ravi Sharma wrote:
>
>> ya thats true propblems gives u more knowledge..but this one is killing me
>> :)
>> i have removed the alias line too..... now none of the link is working....
>> :(
>> I dont know whats wrong
>>
>> now httpd.conf has only this line
>>
>> JkMount /ex/servlet/HelloWorldExample testWorker.
>>
>> I really dont know what i am missing.......
>> please help.
>>
>> On Sun, Jul 20, 2008 at 2:44 PM, André Warnier <[EMAIL PROTECTED]> wrote:
>>
>> The good news is that you will learn more by encountering problems and
>>> solving them, than if everything worked correctly on the first pass.
>>>
>>> Ravi Sharma wrote:
>>> [...]
>>>
>>> Alias /ex /usr/java/tomcat-5.5/webapps/servlets-examples
>>>
>>>> JkMount /ex/servlet/* testWorker
>>>>
>>>> I think that the two lines above conflict with eachother :
>>>
>>> First you are telling Apache that if it sees "/ex" in a URI, it should
>>> translate it to "/usr/java/tomcat-5.5/webapps/servlets-examples".
>>> Then you are telling Apache that if it sees a URI like "/ex/servlet/*",
>>> it
>>> should pass it to mod_jk (which will pass it to Tomcat).
>>>
>>> Here is my guess as to what happens, step by step :
>>>
>>> You send the following request to Apache :
>>> /ex/servlet/HelloWorldExample
>>>
>>> Because of the "Alias", Apache will first translate this to the file
>>> location
>>> /usr/java/tomcat-5.5/webapps/servlets-examples/HelloWorldExample
>>>
>>> Then Apache will try to find a "handler" for that location.
>>> Because mod_jk is installed, Apache will ask mod_jk if it is interested
>>> in
>>> this URI.
>>>
>>> mod_jk will say no, because the above translated URI does not match
>>> "/ex/servlet/*" in the JkMount. So mod_jk will return "DECLINED" to
>>> Apache.
>>>
>>> Then Apache will ask other possible handlers, and if nobody else wants
>>> this
>>> URI, then Apache will select its own default handler (the one which just
>>> returns local files).
>>>
>>> This default handler will try to find the file
>>> /usr/java/tomcat-5.5/webapps/servlets-examples/HelloWorldExample
>>> and will not find it. So it will return an error.
>>>
>>> The point is that an "Alias" happens earlier in the cycle of processing
>>> the
>>> request (the "URI translation" step), and the "content generation" step
>>> happens later. mod_jk (and Tomcat) are involved in the
>>> "content-generation"
>>> phase. But by the time mod_jk is getting asked if it wants to generate
>>> the
>>> content, the URI is already tanslated, and mod_jk does not recognise it.
>>>
>>> In short, for a test of the above, comment out the "Alias" line, restart
>>> Apache, and try again the URL
>>> http://www.jaatmusic.com/ex/servlet/HelloWorldExample
>>>
>>> Of course, with the above change, your first URL
>>> http://www.jaatmusic.com/ex
>>> will probably not work anymore, but that is normal and we will see that
>>> next.
>>>
>>>
>>> For a bit more more information on the order in which the various request
>>> processing steps happen in Apache, read through this :
>>> http://httpd.apache.org/docs/2.2/developer/request.html
>>> For the same with pictures, try this :
>>> http://www.apachetutor.org/dev/request
>>>
>>>
>>> André
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
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>>>
>>>
>>>
>>
>
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