yoavs 2004/04/05 08:37:57
Modified: docs/faq connectors.html
docs/faq/printer connectors.html
xdocs-faq connectors.xml
Log:
Added question to connectors about binary download.
Revision Changes Path
1.10 +282 -265 jakarta-tomcat-site/docs/faq/connectors.html
Index: connectors.html
===================================================================
RCS file: /home/cvs/jakarta-tomcat-site/docs/faq/connectors.html,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -r1.9 -r1.10
--- connectors.html 17 Jan 2004 01:20:09 -0000 1.9
+++ connectors.html 5 Apr 2004 15:37:57 -0000 1.10
@@ -1,266 +1,283 @@
-<html><head><META http-equiv="Content-Type" content="text/html;
charset=iso-8859-1"><title>Tomcat FAQ - Connectors</title><meta value="Tim Funk"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><style>
- dt { font-size : larger; font-weight : bold }
- dd {padding-bottom : 10px;}
- </style></head><body vlink="#525D76" alink="#525D76" link="#525D76"
text="#000000" bgcolor="#ffffff"><table cellspacing="4" width="100%"
border="0"><!--PAGE HEADER--><tr><td colspan="2"><!--JAKARTA LOGO--><a
href="http://jakarta.apache.org/";><img border="0" alt="The Jakarta Project"
align="left" src="http://jakarta.apache.org//images/jakarta-logo.gif";></a><!--PROJECT
LOGO--><a href="http://jakarta.apache.org/tomcat/";><img border="0" alt="
- Tomcat FAQ
- " align="right" src="../images/tomcat.gif"></a></td></tr><!--HEADER
SEPARATOR--><tr><td colspan="2"><hr size="1" noshade=""></td></tr><tr><!--LEFT SIDE
NAVIGATION--><td nowrap="true" valign="top"
width="20%"><p><strong>Links</strong></p><ul><li><a href="..">Tomcat
Home</a></li><li><a href="index.html">FAQ
Home</a></li></ul><p><strong>Contents</strong></p><ul><li><a
href="bugs.html">Bugs</a></li><li><a href="classnotfound.html">Class Not
Found</a></li><li><a href="connectors.html">Connectors</a></li><li><a
href="database.html">Database</a></li><li><a
href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Howto";>How do
I</a></li><li><a href="unix.html">Linux / Unix</a></li><li><a
href="memory.html">Memory</a></li><li><a href="meta.html">Meta</a></li><li><a
href="misc.html">Miscellaneous</a></li><li><a href="performance.html">Monitoring /
Performance</a></li><li><a
href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>Other
Resources</a></li><li><a href="security.html">Security</a></li><li><a
href="version.html">Which Version</a></li><li><a href="tomcatuser.html">Tomcat User
List</a></li><li><a href="windows.html">Windows</a></li></ul></td><!--RIGHT SIDE MAIN
BODY--><td align="left" valign="top" width="80%"><table cellspacing="4" width="100%"
border="0"><tr><td nowrap="true" valign="top" align="left"><h1>Tomcat
FAQ</h1><h2>Connectors</h2></td><td nowrap="true" valign="top" align="right"><small><a
href="printer/connectors.html"><img alt="Printer Friendly Version" border="0"
src="../images/printer.gif"><br>print-friendly<br>version
- </a></small></td></tr></table><table cellpadding="2"
cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font
face="arial,helvetica.sanserif" color="#ffffff"><a
name="Preface"><strong>Preface</strong></a></font></td></tr><tr><td><blockquote>
- <p>
- Please see the
- <a href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>
- Other Resources
- </a> Link for other pages describing how they were able to link
- Tomcat with a connector. With luck, someone documented their experience
- in an environment which is similar to yours.
-
-</p>
-</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Questions"><strong>Questions</strong></a></font></td></tr><tr><td><blockquote>
-<p>
- <ul>
- <li>
- <a href="#jk">
- What is JK (or AJP)?
- </a>
- </li>
- <li>
- <a href="#vs">
- Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
- </a>
- </li>
- <li>
- <a href="#integrate">
- Why should I integrate Apache with Tomcat? (or not)
- </a>
- </li>
- <li>
- <a href="#boot">
- At boot, is order of start up (Apache vs Tomcat) important?
- </a>
- </li>
- <li>
- <a href="#jkloc">
- JK2 doesn't seem to be using my settings in my
- <code>workers2.properties</code> file
- such as creating the shm file or mapping the URIs listed to Tomcat,
- what's wrong?
- </a>
- </li>
-
- <li>
- <a href="#generated">
- Is there any way to control the content of automatically generated
- <code>mod_jk.conf-auto</code>? I need my own specific commands added to it.
- </a>
- </li>
-
-
- <li>
- <a href="#bind">
- How do I bind to a specific ip address?
- </a>
- </li>
-
- </ul>
-</p>
-</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Answers"><strong>Answers</strong></a></font></td></tr><tr><td><blockquote>
-
- <b style="font-size: larger">
- <a name="jk">What is JK (or AJP)?</a>
- </b>
- <div style="padding-left : 20px;">
- AJP is a wire protocol. It an optimized version of the HTTP protocol to
- allow a standalone web server such as Apache talk to Tomcat. Historically,
- Apache has always been much faster than Tomcat at serving static content.
- The idea is to let Apache serve the static content when possible, then
- proxy the request back to Tomcat for Tomcat related content.
- </div><br>
-
- <b style="font-size: larger">
- <a name="vs">
- Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
- </a>
- </b>
- <div style="padding-left : 20px;">
- <ul>
- <li>
- Stay away from mod_webapp, aka warp. It is deprecated and unsupported
- due to lack of developer interest and there are better options such
- as jk and jk2. It WILL NOT run on windows.
- </li>
- <li>
- mod_jserv at this point is unsupported and will not be supported
- in Tomcat 5. mod_jserv was the original connector which supported
- the ajp protocol.
- </li>
- <li>
- <b>mod_jk is great and should be used for production. It is getting
- fixes as needed (which is now rare). </b>
- </li>
- <li>
- jk2 is a refactoring of mod_jk and uses the Apache Portable
- Runtime (apr). If you are using Apache 2.0,
- you'll might want to use jk2. But this may not be production
- worthy for everyone. (YMMV) jk2 has quirks which may not be acceptable
- to all.
- </li>
- <li>mod_proxy. A cheap way to proxy without the hassles of configuring JK.
- This solution lacks sticky session load balancing. If you don't
- need some of the features of jk, jk2 - this is a very simple
- alternative.
- </li>
- </ul>
- </div><br>
-
- <b style="font-size: larger">
- <a name="integrate">
- Why should I integrate Apache with Tomcat? (or not)
- </a>
- </b>
- <div style="padding-left : 20px;">
- There are many reasons to integrate Tomcat with Apache. And there are
- reasons why it
- should not be done too. Needless to say, everyone will disagree with
- the opinions here.
- With the upcoming performance of Tomcat 5, performance reasons
- become harder to justify. So here are the issues to discuss in
- integrating vs not.
- <br><br>
-
- <ul>
- <li>
- Clustering. By using Apache as a front end you can let Apache act as a
- front door to your content to multiple Tomcat instances. If one of your
- Tomcats fails, Apache
- ignores it and your Sysadmin can sleep through the night. This point
- could be ignored if you use a hardware loadbalancer and Tomcat's
- clustering capabilities.
- </li>
- <li>
- Clustering/Security. You can also use Apache as a front door to different
- Tomcats for
- different URL namespaces (/app1/, /app2/, /app3/, or virtual hosts).
- The Tomcats can then be each in a protected area
- and from a security point of view, you only need to worry about the
- Apache server. Essentially, Apache becomes a smart proxy server.
- </li>
- <li>
- Security. This topic can sway one either way. Java has the security
- manager while Apache has a larger mindshare and more tricks with
- respect to security. I won't go into this
- in more detail, but let Google be your friend. Depending on your scenario,
- one might be better than the other. But also keep in mind, if you run
- Apache with
- Tomcat - you have two systems to defend, not one.
- </li>
- <li>
- Add-ons. Adding on CGI, perl, PHP is very natural to Apache. Its
- slower and more
- of a kludge for Tomcat. Apache also has hundreds of modules that can
- be plugged in
- at will. Tomcat can have this ability, but the code hasn't been
- written yet.
- </li>
- <li>
- Decorators! With Apache in front of Tomcat, you can perform any number
- of decorators that
- Tomcat doesn't support or doesn't have the immediate code support.
- For example,
- mod_headers, mod_rewrite, and mod_alias could be written for Tomcat,
- but why reinvent the wheel when Apache has done it so well?
- </li>
- <li>
- Speed. Apache is faster at serving static content than Tomcat. But unless
- you have a high traffic site, this point is useless. But in some scenarios,
- tomcat can be faster than apache. So benchmark YOUR site.
- </li>
- <li>
- Socket handling/system stability. Apache has better socket handling
- with respect
- to error conditions than Tomcat. The main reason is Tomcat must perform
- all its socket handling via the JVM which needs to be cross platform.
- The problem
- is socket optimization is a platform specific ordeal. Most of the
- time the java
- code is fine, but when you are also bombarded with dropped connections,
- invalid
- packets, invalid requests from invalid IP's, Apache does a better job
- at dropping these error conditions than JVM based program. (YMMV)
- </li>
- <li>
- <a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=104874913017036&w=2";>Here </a>
- is a great response from Craig R. McClanahan. If you have free time,
- read emails by him in any of the list archives. You'll learn a lot.
- </li>
- </ul>
- </div><br>
-
- <b style="font-size: larger">
- <a name="boot">
- At boot, is order of start up (Apache vs Tomcat) important?
- </a>
- </b>
- <div style="padding-left : 20px;">
- No. This way - either apache or tomcat can be restarted at any time
- independent of one another.
- </div><br>
-
- <b style="font-size: larger">
- <a name="jkloc">
- JK2 doesn't seem to be using my settings in my
- <code>workers2.properties</code> file
- such as creating the shm file or mapping the URIs listed to Tomcat,
- what's wrong?
- </a>
- </b>
- <div style="padding-left : 20px;">
- JK2 is not finding your <code>workers2.properties</code> file.
- Specify it's location in your <code>httpd.conf</code> file by adding:
-
- <br><br>
- <code>
- JkSet config.file /full/system/path/to/workers2.properties
- </code>
- <br><br>
- <a href="http://marc.theaimsgroup.com/?t=105784893200003&r=1&w=2";>
- Thread which spawned this question.
- </a>
- </div><br>
-
-
- <b style="font-size: larger">
- <a name="generated">
- Is there any way to control the content of automatically generated
- <code>mod_jk.conf-auto</code>? I need my own specific commands added
- to it.
- </a>
- </b>
- <div style="padding-left : 20px;">
- There really is no need to. Just copy the automatically generated
- <code>mod_jk.conf-auto</code> and edit it manually to your preference.
- None of production tomcat installations really use <code>mod_jk.conf-auto</code>
- as it is.
- </div><br>
-
- <b style="font-size: larger">
- <a name="bind">
- How do I bind to a specific ip address?
- </a>
- </b>
- <div style="padding-left : 20px;">
- Each Connector element allows an address property. For example:
-<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td><td height="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td
height="1" bgcolor="#ffffff"><pre>
-<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
- address="192.168.1.1"
- port="8080" minProcessors="5" maxProcessors="75"
- enableLookups="true" redirectPort="8443"
- acceptCount="100" debug="0" connectionTimeout="20000"
- useURIValidationHack="false" disableUploadTimeout="true" />
-</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td></tr></table></div>
-
-
- </div><br>
-
-
-</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td
colspan="2"><hr size="1" noshade=""></td></tr><!--PAGE FOOTER--><tr><td
colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
- Copyright © 1999-2003, Apache Software Foundation
+<html><head><META http-equiv="Content-Type" content="text/html;
charset=iso-8859-1"><title>Tomcat FAQ - Connectors</title><meta value="Tim Funk"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><meta value="Yoav Shapira"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><style>
+ dt { font-size : larger; font-weight : bold }
+ dd {padding-bottom : 10px;}
+ </style></head><body vlink="#525D76" alink="#525D76" link="#525D76"
text="#000000" bgcolor="#ffffff"><table cellspacing="4" width="100%"
border="0"><!--PAGE HEADER--><tr><td colspan="2"><!--JAKARTA LOGO--><a
href="http://jakarta.apache.org/";><img border="0" alt="The Jakarta Project"
align="left" src="http://jakarta.apache.org//images/jakarta-logo.gif";></a><!--PROJECT
LOGO--><a href="http://jakarta.apache.org/tomcat/";><img border="0" alt="
+ Tomcat FAQ
+ " align="right" src="../images/tomcat.gif"></a></td></tr><!--HEADER
SEPARATOR--><tr><td colspan="2"><hr size="1" noshade=""></td></tr><tr><!--LEFT SIDE
NAVIGATION--><td nowrap="true" valign="top"
width="20%"><p><strong>Links</strong></p><ul><li><a href="..">Tomcat
Home</a></li><li><a href="index.html">FAQ
Home</a></li></ul><p><strong>Contents</strong></p><ul><li><a
href="bugs.html">Bugs</a></li><li><a href="classnotfound.html">Class Not
Found</a></li><li><a href="connectors.html">Connectors</a></li><li><a
href="database.html">Database</a></li><li><a
href="deployment.html">Deployment</a></li><li><a
href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Howto";>How do
I</a></li><li><a href="unix.html">Linux / Unix</a></li><li><a
href="memory.html">Memory</a></li><li><a href="meta.html">Meta</a></li><li><a
href="misc.html">Miscellaneous</a></li><li><a href="performance.html">Monitoring /
Performance</a></li><li><a
href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>Other
Resources</a></li><li><a href="security.html">Security</a></li><li><a
href="version.html">Which Version</a></li><li><a href="tomcatuser.html">Tomcat User
List</a></li><li><a href="windows.html">Windows</a></li></ul></td><!--RIGHT SIDE MAIN
BODY--><td align="left" valign="top" width="80%"><table cellspacing="4" width="100%"
border="0"><tr><td nowrap="true" valign="top" align="left"><h1>Tomcat
FAQ</h1><h2>Connectors</h2></td><td nowrap="true" valign="top" align="right"><small><a
href="printer/connectors.html"><img alt="Printer Friendly Version" border="0"
src="../images/printer.gif"><br>print-friendly<br>version
+ </a></small></td></tr></table><table cellpadding="2"
cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font
face="arial,helvetica.sanserif" color="#ffffff"><a
name="Preface"><strong>Preface</strong></a></font></td></tr><tr><td><blockquote>
+ <p>
+ Please see the
+ <a href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>
+ Other Resources
+ </a> Link for other pages describing how they were able to link
+ Tomcat with a connector. With luck, someone documented their experience
+ in an environment which is similar to yours.
+
+</p>
+</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Questions"><strong>Questions</strong></a></font></td></tr><tr><td><blockquote>
+<p>
+ <ul>
+ <li>
+ <a href="#jk">
+ What is JK (or AJP)?
+ </a>
+ </li>
+ <li>
+ <a href="#vs">
+ Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
+ </a>
+ </li>
+ <li>
+ <a href="#integrate">
+ Why should I integrate Apache with Tomcat? (or not)
+ </a>
+ </li>
+ <li>
+ <a href="#boot">
+ At boot, is order of start up (Apache vs Tomcat) important?
+ </a>
+ </li>
+ <li>
+ <a href="#jkloc">
+ JK2 doesn't seem to be using my settings in my
+ <code>workers2.properties</code> file
+ such as creating the shm file or mapping the URIs listed to Tomcat,
+ what's wrong?
+ </a>
+ </li>
+
+ <li>
+ <a href="#generated">
+ Is there any way to control the content of automatically generated
+ <code>mod_jk.conf-auto</code>? I need my own specific commands added to it.
+ </a>
+ </li>
+
+
+ <li>
+ <a href="#bind">
+ How do I bind to a specific ip address?
+ </a>
+ </li>
+
+ <li>
+ <a href="#binary">
+ Where is the binary distribution of my connector?
+ </a>
+ </li>
+
+ </ul>
+</p>
+</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Answers"><strong>Answers</strong></a></font></td></tr><tr><td><blockquote>
+
+ <b style="font-size: larger">
+ <a name="jk">What is JK (or AJP)?</a>
+ </b>
+ <div style="padding-left : 20px;">
+ AJP is a wire protocol. It an optimized version of the HTTP protocol to
+ allow a standalone web server such as Apache talk to Tomcat. Historically,
+ Apache has always been much faster than Tomcat at serving static content.
+ The idea is to let Apache serve the static content when possible, then
+ proxy the request back to Tomcat for Tomcat related content.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="vs">
+ Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ <ul>
+ <li>
+ Stay away from mod_webapp, aka warp. It is deprecated and unsupported
+ due to lack of developer interest and there are better options such
+ as jk and jk2. It WILL NOT run on windows.
+ </li>
+ <li>
+ mod_jserv at this point is unsupported and will not be supported
+ in Tomcat 5. mod_jserv was the original connector which supported
+ the ajp protocol.
+ </li>
+ <li>
+ <b>mod_jk is great and should be used for production. It is getting
+ fixes as needed (which is now rare). </b>
+ </li>
+ <li>
+ jk2 is a refactoring of mod_jk and uses the Apache Portable
+ Runtime (apr). If you are using Apache 2.0,
+ you'll might want to use jk2. But this may not be production
+ worthy for everyone. (YMMV) jk2 has quirks which may not be acceptable
+ to all.
+ </li>
+ <li>mod_proxy. A cheap way to proxy without the hassles of configuring JK.
+ This solution lacks sticky session load balancing. If you don't
+ need some of the features of jk, jk2 - this is a very simple
+ alternative.
+ </li>
+ </ul>
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="integrate">
+ Why should I integrate Apache with Tomcat? (or not)
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ There are many reasons to integrate Tomcat with Apache. And there are
+ reasons why it
+ should not be done too. Needless to say, everyone will disagree with
+ the opinions here.
+ With the upcoming performance of Tomcat 5, performance reasons
+ become harder to justify. So here are the issues to discuss in
+ integrating vs not.
+ <br><br>
+
+ <ul>
+ <li>
+ Clustering. By using Apache as a front end you can let Apache act as a
+ front door to your content to multiple Tomcat instances. If one of your
+ Tomcats fails, Apache
+ ignores it and your Sysadmin can sleep through the night. This point
+ could be ignored if you use a hardware loadbalancer and Tomcat's
+ clustering capabilities.
+ </li>
+ <li>
+ Clustering/Security. You can also use Apache as a front door to different
+ Tomcats for
+ different URL namespaces (/app1/, /app2/, /app3/, or virtual hosts).
+ The Tomcats can then be each in a protected area
+ and from a security point of view, you only need to worry about the
+ Apache server. Essentially, Apache becomes a smart proxy server.
+ </li>
+ <li>
+ Security. This topic can sway one either way. Java has the security
+ manager while Apache has a larger mindshare and more tricks with
+ respect to security. I won't go into this
+ in more detail, but let Google be your friend. Depending on your scenario,
+ one might be better than the other. But also keep in mind, if you run
+ Apache with
+ Tomcat - you have two systems to defend, not one.
+ </li>
+ <li>
+ Add-ons. Adding on CGI, perl, PHP is very natural to Apache. Its
+ slower and more
+ of a kludge for Tomcat. Apache also has hundreds of modules that can
+ be plugged in
+ at will. Tomcat can have this ability, but the code hasn't been
+ written yet.
+ </li>
+ <li>
+ Decorators! With Apache in front of Tomcat, you can perform any number
+ of decorators that
+ Tomcat doesn't support or doesn't have the immediate code support.
+ For example,
+ mod_headers, mod_rewrite, and mod_alias could be written for Tomcat,
+ but why reinvent the wheel when Apache has done it so well?
+ </li>
+ <li>
+ Speed. Apache is faster at serving static content than Tomcat. But unless
+ you have a high traffic site, this point is useless. But in some scenarios,
+ tomcat can be faster than apache. So benchmark YOUR site.
+ </li>
+ <li>
+ Socket handling/system stability. Apache has better socket handling
+ with respect
+ to error conditions than Tomcat. The main reason is Tomcat must perform
+ all its socket handling via the JVM which needs to be cross platform.
+ The problem
+ is socket optimization is a platform specific ordeal. Most of the
+ time the java
+ code is fine, but when you are also bombarded with dropped connections,
+ invalid
+ packets, invalid requests from invalid IP's, Apache does a better job
+ at dropping these error conditions than JVM based program. (YMMV)
+ </li>
+ <li>
+ <a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=104874913017036&w=2";>Here </a>
+ is a great response from Craig R. McClanahan. If you have free time,
+ read emails by him in any of the list archives. You'll learn a lot.
+ </li>
+ </ul>
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="boot">
+ At boot, is order of start up (Apache vs Tomcat) important?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ No. This way - either apache or tomcat can be restarted at any time
+ independent of one another.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="jkloc">
+ JK2 doesn't seem to be using my settings in my
+ <code>workers2.properties</code> file
+ such as creating the shm file or mapping the URIs listed to Tomcat,
+ what's wrong?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ JK2 is not finding your <code>workers2.properties</code> file.
+ Specify it's location in your <code>httpd.conf</code> file by adding:
+
+ <br><br>
+ <code>
+ JkSet config.file /full/system/path/to/workers2.properties
+ </code>
+ <br><br>
+ <a href="http://marc.theaimsgroup.com/?t=105784893200003&r=1&w=2";>
+ Thread which spawned this question.
+ </a>
+ </div><br>
+
+
+ <b style="font-size: larger">
+ <a name="generated">
+ Is there any way to control the content of automatically generated
+ <code>mod_jk.conf-auto</code>? I need my own specific commands added
+ to it.
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ There really is no need to. Just copy the automatically generated
+ <code>mod_jk.conf-auto</code> and edit it manually to your preference.
+ None of production tomcat installations really use <code>mod_jk.conf-auto</code>
+ as it is.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="bind">
+ How do I bind to a specific ip address?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ Each Connector element allows an address property. For example:
+<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td><td height="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td
height="1" bgcolor="#ffffff"><pre>
+<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
+ address="192.168.1.1"
+ port="8080" minProcessors="5" maxProcessors="75"
+ enableLookups="true" redirectPort="8443"
+ acceptCount="100" debug="0" connectionTimeout="20000"
+ useURIValidationHack="false" disableUploadTimeout="true" />
+</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td></tr><tr><td height="1" width="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../images/void.gif"></td><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../images/void.gif"></td></tr></table></div>
+
+
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="binary">
+ Where can I download a binary distribution of my connector?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ You can't: you need to download the source and compile it
+ for your platform. The source distributions are available
+ from the <a href="http://jakarta.apache.org/site/sourceindex.cgi";>standard
location.</a>
+ </div><br>
+
+
+</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td
colspan="2"><hr size="1" noshade=""></td></tr><!--PAGE FOOTER--><tr><td
colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
+ Copyright © 1999-2003, Apache Software Foundation
</em></font></div></td></tr></table></body></html>
1.9 +281 -264 jakarta-tomcat-site/docs/faq/printer/connectors.html
Index: connectors.html
===================================================================
RCS file: /home/cvs/jakarta-tomcat-site/docs/faq/printer/connectors.html,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- connectors.html 17 Jan 2004 01:20:09 -0000 1.8
+++ connectors.html 5 Apr 2004 15:37:57 -0000 1.9
@@ -1,265 +1,282 @@
-<html><head><META http-equiv="Content-Type" content="text/html;
charset=iso-8859-1"><title>Tomcat FAQ - Connectors</title><meta value="Tim Funk"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><style>
- dt { font-size : larger; font-weight : bold }
- dd {padding-bottom : 10px;}
- </style></head><body vlink="#525D76" alink="#525D76" link="#525D76"
text="#000000" bgcolor="#ffffff"><table cellspacing="4" width="100%"
border="0"><!--PAGE HEADER--><tr><td colspan="2"><!--JAKARTA LOGO--><a
href="http://jakarta.apache.org/";><img border="0" alt="The Jakarta Project"
align="left" src="http://jakarta.apache.org//images/jakarta-logo.gif";></a><!--PROJECT
LOGO--><a href="http://jakarta.apache.org/tomcat/";><img border="0" alt="
- Tomcat FAQ
- " align="right" src="../../images/tomcat.gif"></a></td></tr><!--HEADER
SEPARATOR--><tr><td colspan="2"><hr size="1" noshade=""></td></tr><tr><!--RIGHT SIDE
MAIN BODY--><td align="left" valign="top" width="80%"><table cellspacing="4"
width="100%" border="0"><tr><td nowrap="true" valign="top" align="left"><h1>Tomcat
FAQ</h1><h2>Connectors</h2></td><td nowrap="true" valign="top" align="right"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Preface"><strong>Preface</strong></a></font></td></tr><tr><td><blockquote>
- <p>
- Please see the
- <a href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>
- Other Resources
- </a> Link for other pages describing how they were able to link
- Tomcat with a connector. With luck, someone documented their experience
- in an environment which is similar to yours.
-
-</p>
-</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Questions"><strong>Questions</strong></a></font></td></tr><tr><td><blockquote>
-<p>
- <ul>
- <li>
- <a href="#jk">
- What is JK (or AJP)?
- </a>
- </li>
- <li>
- <a href="#vs">
- Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
- </a>
- </li>
- <li>
- <a href="#integrate">
- Why should I integrate Apache with Tomcat? (or not)
- </a>
- </li>
- <li>
- <a href="#boot">
- At boot, is order of start up (Apache vs Tomcat) important?
- </a>
- </li>
- <li>
- <a href="#jkloc">
- JK2 doesn't seem to be using my settings in my
- <code>workers2.properties</code> file
- such as creating the shm file or mapping the URIs listed to Tomcat,
- what's wrong?
- </a>
- </li>
-
- <li>
- <a href="#generated">
- Is there any way to control the content of automatically generated
- <code>mod_jk.conf-auto</code>? I need my own specific commands added to it.
- </a>
- </li>
-
-
- <li>
- <a href="#bind">
- How do I bind to a specific ip address?
- </a>
- </li>
-
- </ul>
-</p>
-</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Answers"><strong>Answers</strong></a></font></td></tr><tr><td><blockquote>
-
- <b style="font-size: larger">
- <a name="jk">What is JK (or AJP)?</a>
- </b>
- <div style="padding-left : 20px;">
- AJP is a wire protocol. It an optimized version of the HTTP protocol to
- allow a standalone web server such as Apache talk to Tomcat. Historically,
- Apache has always been much faster than Tomcat at serving static content.
- The idea is to let Apache serve the static content when possible, then
- proxy the request back to Tomcat for Tomcat related content.
- </div><br>
-
- <b style="font-size: larger">
- <a name="vs">
- Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
- </a>
- </b>
- <div style="padding-left : 20px;">
- <ul>
- <li>
- Stay away from mod_webapp, aka warp. It is deprecated and unsupported
- due to lack of developer interest and there are better options such
- as jk and jk2. It WILL NOT run on windows.
- </li>
- <li>
- mod_jserv at this point is unsupported and will not be supported
- in Tomcat 5. mod_jserv was the original connector which supported
- the ajp protocol.
- </li>
- <li>
- <b>mod_jk is great and should be used for production. It is getting
- fixes as needed (which is now rare). </b>
- </li>
- <li>
- jk2 is a refactoring of mod_jk and uses the Apache Portable
- Runtime (apr). If you are using Apache 2.0,
- you'll might want to use jk2. But this may not be production
- worthy for everyone. (YMMV) jk2 has quirks which may not be acceptable
- to all.
- </li>
- <li>mod_proxy. A cheap way to proxy without the hassles of configuring JK.
- This solution lacks sticky session load balancing. If you don't
- need some of the features of jk, jk2 - this is a very simple
- alternative.
- </li>
- </ul>
- </div><br>
-
- <b style="font-size: larger">
- <a name="integrate">
- Why should I integrate Apache with Tomcat? (or not)
- </a>
- </b>
- <div style="padding-left : 20px;">
- There are many reasons to integrate Tomcat with Apache. And there are
- reasons why it
- should not be done too. Needless to say, everyone will disagree with
- the opinions here.
- With the upcoming performance of Tomcat 5, performance reasons
- become harder to justify. So here are the issues to discuss in
- integrating vs not.
- <br><br>
-
- <ul>
- <li>
- Clustering. By using Apache as a front end you can let Apache act as a
- front door to your content to multiple Tomcat instances. If one of your
- Tomcats fails, Apache
- ignores it and your Sysadmin can sleep through the night. This point
- could be ignored if you use a hardware loadbalancer and Tomcat's
- clustering capabilities.
- </li>
- <li>
- Clustering/Security. You can also use Apache as a front door to different
- Tomcats for
- different URL namespaces (/app1/, /app2/, /app3/, or virtual hosts).
- The Tomcats can then be each in a protected area
- and from a security point of view, you only need to worry about the
- Apache server. Essentially, Apache becomes a smart proxy server.
- </li>
- <li>
- Security. This topic can sway one either way. Java has the security
- manager while Apache has a larger mindshare and more tricks with
- respect to security. I won't go into this
- in more detail, but let Google be your friend. Depending on your scenario,
- one might be better than the other. But also keep in mind, if you run
- Apache with
- Tomcat - you have two systems to defend, not one.
- </li>
- <li>
- Add-ons. Adding on CGI, perl, PHP is very natural to Apache. Its
- slower and more
- of a kludge for Tomcat. Apache also has hundreds of modules that can
- be plugged in
- at will. Tomcat can have this ability, but the code hasn't been
- written yet.
- </li>
- <li>
- Decorators! With Apache in front of Tomcat, you can perform any number
- of decorators that
- Tomcat doesn't support or doesn't have the immediate code support.
- For example,
- mod_headers, mod_rewrite, and mod_alias could be written for Tomcat,
- but why reinvent the wheel when Apache has done it so well?
- </li>
- <li>
- Speed. Apache is faster at serving static content than Tomcat. But unless
- you have a high traffic site, this point is useless. But in some scenarios,
- tomcat can be faster than apache. So benchmark YOUR site.
- </li>
- <li>
- Socket handling/system stability. Apache has better socket handling
- with respect
- to error conditions than Tomcat. The main reason is Tomcat must perform
- all its socket handling via the JVM which needs to be cross platform.
- The problem
- is socket optimization is a platform specific ordeal. Most of the
- time the java
- code is fine, but when you are also bombarded with dropped connections,
- invalid
- packets, invalid requests from invalid IP's, Apache does a better job
- at dropping these error conditions than JVM based program. (YMMV)
- </li>
- <li>
- <a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=104874913017036&w=2";>Here </a>
- is a great response from Craig R. McClanahan. If you have free time,
- read emails by him in any of the list archives. You'll learn a lot.
- </li>
- </ul>
- </div><br>
-
- <b style="font-size: larger">
- <a name="boot">
- At boot, is order of start up (Apache vs Tomcat) important?
- </a>
- </b>
- <div style="padding-left : 20px;">
- No. This way - either apache or tomcat can be restarted at any time
- independent of one another.
- </div><br>
-
- <b style="font-size: larger">
- <a name="jkloc">
- JK2 doesn't seem to be using my settings in my
- <code>workers2.properties</code> file
- such as creating the shm file or mapping the URIs listed to Tomcat,
- what's wrong?
- </a>
- </b>
- <div style="padding-left : 20px;">
- JK2 is not finding your <code>workers2.properties</code> file.
- Specify it's location in your <code>httpd.conf</code> file by adding:
-
- <br><br>
- <code>
- JkSet config.file /full/system/path/to/workers2.properties
- </code>
- <br><br>
- <a href="http://marc.theaimsgroup.com/?t=105784893200003&r=1&w=2";>
- Thread which spawned this question.
- </a>
- </div><br>
-
-
- <b style="font-size: larger">
- <a name="generated">
- Is there any way to control the content of automatically generated
- <code>mod_jk.conf-auto</code>? I need my own specific commands added
- to it.
- </a>
- </b>
- <div style="padding-left : 20px;">
- There really is no need to. Just copy the automatically generated
- <code>mod_jk.conf-auto</code> and edit it manually to your preference.
- None of production tomcat installations really use <code>mod_jk.conf-auto</code>
- as it is.
- </div><br>
-
- <b style="font-size: larger">
- <a name="bind">
- How do I bind to a specific ip address?
- </a>
- </b>
- <div style="padding-left : 20px;">
- Each Connector element allows an address property. For example:
-<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td><td height="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
-<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
- address="192.168.1.1"
- port="8080" minProcessors="5" maxProcessors="75"
- enableLookups="true" redirectPort="8443"
- acceptCount="100" debug="0" connectionTimeout="20000"
- useURIValidationHack="false" disableUploadTimeout="true" />
-</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td></tr><tr><td height="1"
width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../../images/void.gif"></td><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td></tr></table></div>
-
-
- </div><br>
-
-
-</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td
colspan="2"><hr size="1" noshade=""></td></tr><!--PAGE FOOTER--><tr><td
colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
- Copyright © 1999-2003, Apache Software Foundation
+<html><head><META http-equiv="Content-Type" content="text/html;
charset=iso-8859-1"><title>Tomcat FAQ - Connectors</title><meta value="Tim Funk"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><meta value="Yoav Shapira"
name="author"><meta value="[EMAIL PROTECTED]" name="email"><style>
+ dt { font-size : larger; font-weight : bold }
+ dd {padding-bottom : 10px;}
+ </style></head><body vlink="#525D76" alink="#525D76" link="#525D76"
text="#000000" bgcolor="#ffffff"><table cellspacing="4" width="100%"
border="0"><!--PAGE HEADER--><tr><td colspan="2"><!--JAKARTA LOGO--><a
href="http://jakarta.apache.org/";><img border="0" alt="The Jakarta Project"
align="left" src="http://jakarta.apache.org//images/jakarta-logo.gif";></a><!--PROJECT
LOGO--><a href="http://jakarta.apache.org/tomcat/";><img border="0" alt="
+ Tomcat FAQ
+ " align="right" src="../../images/tomcat.gif"></a></td></tr><!--HEADER
SEPARATOR--><tr><td colspan="2"><hr size="1" noshade=""></td></tr><tr><!--RIGHT SIDE
MAIN BODY--><td align="left" valign="top" width="80%"><table cellspacing="4"
width="100%" border="0"><tr><td nowrap="true" valign="top" align="left"><h1>Tomcat
FAQ</h1><h2>Connectors</h2></td><td nowrap="true" valign="top" align="right"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Preface"><strong>Preface</strong></a></font></td></tr><tr><td><blockquote>
+ <p>
+ Please see the
+ <a href="http://nagoya.apache.org/wiki/apachewiki.cgi?Tomcat/Links";>
+ Other Resources
+ </a> Link for other pages describing how they were able to link
+ Tomcat with a connector. With luck, someone documented their experience
+ in an environment which is similar to yours.
+
+</p>
+</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Questions"><strong>Questions</strong></a></font></td></tr><tr><td><blockquote>
+<p>
+ <ul>
+ <li>
+ <a href="#jk">
+ What is JK (or AJP)?
+ </a>
+ </li>
+ <li>
+ <a href="#vs">
+ Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
+ </a>
+ </li>
+ <li>
+ <a href="#integrate">
+ Why should I integrate Apache with Tomcat? (or not)
+ </a>
+ </li>
+ <li>
+ <a href="#boot">
+ At boot, is order of start up (Apache vs Tomcat) important?
+ </a>
+ </li>
+ <li>
+ <a href="#jkloc">
+ JK2 doesn't seem to be using my settings in my
+ <code>workers2.properties</code> file
+ such as creating the shm file or mapping the URIs listed to Tomcat,
+ what's wrong?
+ </a>
+ </li>
+
+ <li>
+ <a href="#generated">
+ Is there any way to control the content of automatically generated
+ <code>mod_jk.conf-auto</code>? I need my own specific commands added to it.
+ </a>
+ </li>
+
+
+ <li>
+ <a href="#bind">
+ How do I bind to a specific ip address?
+ </a>
+ </li>
+
+ <li>
+ <a href="#binary">
+ Where is the binary distribution of my connector?
+ </a>
+ </li>
+
+ </ul>
+</p>
+</blockquote></td></tr></table><table cellpadding="2" cellspacing="0"
border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif"
color="#ffffff"><a
name="Answers"><strong>Answers</strong></a></font></td></tr><tr><td><blockquote>
+
+ <b style="font-size: larger">
+ <a name="jk">What is JK (or AJP)?</a>
+ </b>
+ <div style="padding-left : 20px;">
+ AJP is a wire protocol. It an optimized version of the HTTP protocol to
+ allow a standalone web server such as Apache talk to Tomcat. Historically,
+ Apache has always been much faster than Tomcat at serving static content.
+ The idea is to let Apache serve the static content when possible, then
+ proxy the request back to Tomcat for Tomcat related content.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="vs">
+ Which connector: mod_jserv, JK, JK2, mod_webapp or mod_proxy?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ <ul>
+ <li>
+ Stay away from mod_webapp, aka warp. It is deprecated and unsupported
+ due to lack of developer interest and there are better options such
+ as jk and jk2. It WILL NOT run on windows.
+ </li>
+ <li>
+ mod_jserv at this point is unsupported and will not be supported
+ in Tomcat 5. mod_jserv was the original connector which supported
+ the ajp protocol.
+ </li>
+ <li>
+ <b>mod_jk is great and should be used for production. It is getting
+ fixes as needed (which is now rare). </b>
+ </li>
+ <li>
+ jk2 is a refactoring of mod_jk and uses the Apache Portable
+ Runtime (apr). If you are using Apache 2.0,
+ you'll might want to use jk2. But this may not be production
+ worthy for everyone. (YMMV) jk2 has quirks which may not be acceptable
+ to all.
+ </li>
+ <li>mod_proxy. A cheap way to proxy without the hassles of configuring JK.
+ This solution lacks sticky session load balancing. If you don't
+ need some of the features of jk, jk2 - this is a very simple
+ alternative.
+ </li>
+ </ul>
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="integrate">
+ Why should I integrate Apache with Tomcat? (or not)
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ There are many reasons to integrate Tomcat with Apache. And there are
+ reasons why it
+ should not be done too. Needless to say, everyone will disagree with
+ the opinions here.
+ With the upcoming performance of Tomcat 5, performance reasons
+ become harder to justify. So here are the issues to discuss in
+ integrating vs not.
+ <br><br>
+
+ <ul>
+ <li>
+ Clustering. By using Apache as a front end you can let Apache act as a
+ front door to your content to multiple Tomcat instances. If one of your
+ Tomcats fails, Apache
+ ignores it and your Sysadmin can sleep through the night. This point
+ could be ignored if you use a hardware loadbalancer and Tomcat's
+ clustering capabilities.
+ </li>
+ <li>
+ Clustering/Security. You can also use Apache as a front door to different
+ Tomcats for
+ different URL namespaces (/app1/, /app2/, /app3/, or virtual hosts).
+ The Tomcats can then be each in a protected area
+ and from a security point of view, you only need to worry about the
+ Apache server. Essentially, Apache becomes a smart proxy server.
+ </li>
+ <li>
+ Security. This topic can sway one either way. Java has the security
+ manager while Apache has a larger mindshare and more tricks with
+ respect to security. I won't go into this
+ in more detail, but let Google be your friend. Depending on your scenario,
+ one might be better than the other. But also keep in mind, if you run
+ Apache with
+ Tomcat - you have two systems to defend, not one.
+ </li>
+ <li>
+ Add-ons. Adding on CGI, perl, PHP is very natural to Apache. Its
+ slower and more
+ of a kludge for Tomcat. Apache also has hundreds of modules that can
+ be plugged in
+ at will. Tomcat can have this ability, but the code hasn't been
+ written yet.
+ </li>
+ <li>
+ Decorators! With Apache in front of Tomcat, you can perform any number
+ of decorators that
+ Tomcat doesn't support or doesn't have the immediate code support.
+ For example,
+ mod_headers, mod_rewrite, and mod_alias could be written for Tomcat,
+ but why reinvent the wheel when Apache has done it so well?
+ </li>
+ <li>
+ Speed. Apache is faster at serving static content than Tomcat. But unless
+ you have a high traffic site, this point is useless. But in some scenarios,
+ tomcat can be faster than apache. So benchmark YOUR site.
+ </li>
+ <li>
+ Socket handling/system stability. Apache has better socket handling
+ with respect
+ to error conditions than Tomcat. The main reason is Tomcat must perform
+ all its socket handling via the JVM which needs to be cross platform.
+ The problem
+ is socket optimization is a platform specific ordeal. Most of the
+ time the java
+ code is fine, but when you are also bombarded with dropped connections,
+ invalid
+ packets, invalid requests from invalid IP's, Apache does a better job
+ at dropping these error conditions than JVM based program. (YMMV)
+ </li>
+ <li>
+ <a
href="http://marc.theaimsgroup.com/?l=tomcat-user&m=104874913017036&w=2";>Here </a>
+ is a great response from Craig R. McClanahan. If you have free time,
+ read emails by him in any of the list archives. You'll learn a lot.
+ </li>
+ </ul>
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="boot">
+ At boot, is order of start up (Apache vs Tomcat) important?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ No. This way - either apache or tomcat can be restarted at any time
+ independent of one another.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="jkloc">
+ JK2 doesn't seem to be using my settings in my
+ <code>workers2.properties</code> file
+ such as creating the shm file or mapping the URIs listed to Tomcat,
+ what's wrong?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ JK2 is not finding your <code>workers2.properties</code> file.
+ Specify it's location in your <code>httpd.conf</code> file by adding:
+
+ <br><br>
+ <code>
+ JkSet config.file /full/system/path/to/workers2.properties
+ </code>
+ <br><br>
+ <a href="http://marc.theaimsgroup.com/?t=105784893200003&r=1&w=2";>
+ Thread which spawned this question.
+ </a>
+ </div><br>
+
+
+ <b style="font-size: larger">
+ <a name="generated">
+ Is there any way to control the content of automatically generated
+ <code>mod_jk.conf-auto</code>? I need my own specific commands added
+ to it.
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ There really is no need to. Just copy the automatically generated
+ <code>mod_jk.conf-auto</code> and edit it manually to your preference.
+ None of production tomcat installations really use <code>mod_jk.conf-auto</code>
+ as it is.
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="bind">
+ How do I bind to a specific ip address?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ Each Connector element allows an address property. For example:
+<div align="left"><table border="0" cellpadding="0" cellspacing="4"><tr><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td><td height="1"
bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td></tr><tr><td width="1" bgcolor="#023264"><img
border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" bgcolor="#ffffff"><pre>
+<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
+ address="192.168.1.1"
+ port="8080" minProcessors="5" maxProcessors="75"
+ enableLookups="true" redirectPort="8443"
+ acceptCount="100" debug="0" connectionTimeout="20000"
+ useURIValidationHack="false" disableUploadTimeout="true" />
+</pre></td><td width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td></tr><tr><td height="1"
width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0" height="1" width="1"
src="../../images/void.gif"></td><td height="1" bgcolor="#023264"><img border="0"
hspace="0" vspace="0" height="1" width="1" src="../../images/void.gif"></td><td
height="1" width="1" bgcolor="#023264"><img border="0" hspace="0" vspace="0"
height="1" width="1" src="../../images/void.gif"></td></tr></table></div>
+
+
+ </div><br>
+
+ <b style="font-size: larger">
+ <a name="binary">
+ Where can I download a binary distribution of my connector?
+ </a>
+ </b>
+ <div style="padding-left : 20px;">
+ You can't: you need to download the source and compile it
+ for your platform. The source distributions are available
+ from the <a href="http://jakarta.apache.org/site/sourceindex.cgi";>standard
location.</a>
+ </div><br>
+
+
+</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td
colspan="2"><hr size="1" noshade=""></td></tr><!--PAGE FOOTER--><tr><td
colspan="2"><div align="center"><font size="-1" color="#525D76"><em>
+ Copyright © 1999-2003, Apache Software Foundation
</em></font></div></td></tr></table></body></html>
1.8 +18 -0 jakarta-tomcat-site/xdocs-faq/connectors.xml
Index: connectors.xml
===================================================================
RCS file: /home/cvs/jakarta-tomcat-site/xdocs-faq/connectors.xml,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- connectors.xml 17 Jan 2004 01:20:09 -0000 1.7
+++ connectors.xml 5 Apr 2004 15:37:57 -0000 1.8
@@ -8,6 +8,7 @@
<properties>
<author email="[EMAIL PROTECTED]">Tim Funk</author>
+ <author email="[EMAIL PROTECTED]">Yoav Shapira</author>
<title>Connectors</title>
</properties>
@@ -73,6 +74,12 @@
</a>
</li>
+ <li>
+ <a href="#binary">
+ Where is the binary distribution of my connector?
+ </a>
+ </li>
+
</ul>
</p>
</section>
@@ -274,6 +281,17 @@
</source>
+ </answer>
+
+ <question>
+ <a name="binary">
+ Where can I download a binary distribution of my connector?
+ </a>
+ </question>
+ <answer>
+ You can't: you need to download the source and compile it
+ for your platform. The source distributions are available
+ from the <a href="http://jakarta.apache.org/site/sourceindex.cgi";>standard
location.</a>
</answer>
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