From c0b7206652b2852bc574694e7ba07ba1c2acdc00 Mon Sep 17 00:00:00 2001 From: hongbotian Date: Mon, 30 Nov 2015 03:10:21 -0500 Subject: delete app Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2 Signed-off-by: hongbotian --- .../docs/miscellaneous/faq.html | 281 --------------------- 1 file changed, 281 deletions(-) delete mode 100644 rubbos/app/tomcat-connectors-1.2.32-src/docs/miscellaneous/faq.html (limited to 'rubbos/app/tomcat-connectors-1.2.32-src/docs/miscellaneous/faq.html') diff --git a/rubbos/app/tomcat-connectors-1.2.32-src/docs/miscellaneous/faq.html b/rubbos/app/tomcat-connectors-1.2.32-src/docs/miscellaneous/faq.html deleted file mode 100644 index 92bdfb2c..00000000 --- a/rubbos/app/tomcat-connectors-1.2.32-src/docs/miscellaneous/faq.html +++ /dev/null @@ -1,281 +0,0 @@ -The Apache Tomcat Connector - Miscellaneous Documentation - FAQ
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The Apache Tomcat Connector - Miscellaneous Documentation

FAQ

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General
-

-General Informations and FAQ about JK -

-
Where can I get help/support for JK ?
-

-The primary mechanism for support is through the JK -documentation included in the doc directory. -Documentation is also available on the Apache Tomcat web site devoted to the - -Apache Tomcat Connectors Project -For additional help, the best resource is the Tomcat Users Discussion list. -You should start by searching - -the mail list archive -before you post questions to the list. -If you are unable to locate the answer to your question in the archive, -you can post questions about JK to the user list for assistance. -Make sure that you include the version of your Webserver, -that you are using as well as the platform you are running on -and go - -here -to determine how to subscribe to tomcat mailing list. -

-
- -
I can't find JK anywhere. Where is it?
-

-Now that JK moved to the tomcat-connectors repository, -the source and the binaries for JK can be downloaded from a mirror at the - -Tomcat Connectors (mod_jk, mod_jk2) Downloads page. -

-
- -
What's the difference between JK and mod_jk ?
-
-

-JK is a project covering web-servers to Tomcat connectors, -whereas mod_jk is the Apache module developed in JK. -

- -

-IIS webserversupport is implemented on JK, using a redirector -called isapi redirector. -

- -

-Netscape/SunONE/Sun webserverwebserver support is implemented on JK, using a redirector -called nsapi redirector. -

- -
- -
Where can I get more information ?
-

-For JK 1.2.x, you should read : -

- - - -

-For more detailed information, have a look at the Reference Guide. -You could also try searching the mailing list archives for "JK" or look at the source. -

-
- -
Which protocol should I use? Ajp12 or Ajp13?
-

-Ajp13 is a newer protocol, it's faster, and it works better with SSL. -You almost certainly want to use it now that ajp12 is deprecated. -

-

-Also ajp13 is supported by all Apache Tomcat including 3.2.x , 3.3.x, 4.0.x, 4.1.x, 5.0.x, 5.5.x -and the new tomcat 6. -

- -

-Others Servlet engines like jetty have support for Ajp13. -

-
- -
I've got a firewall between my web server and Tomcat which drops ajp13 connections after some time
-

-Ajp13 uses persistant connections where the traffic could be null if there is no request to be sent to Tomcat. -Firewalls use to drop inactive connections and will make your web server and Tomcat think the connection is valid. -

-

-Starting with JK 1.2.0, a socket_keepalive property as been added to ajp13 settings, and you should take a look at -it in Workers HowTo and -workers.properties reference. -If nothing else helps, you can try JkOptions +DisableReuse, but this will have strong performance implications. -

-
- -
Under heavy load, I've got many threads in Tomcat even if my Apache Web Server handles much of the load
-

-Under heavy load, Apache Web Server creates many children to handle the load, -which will in turn create many connections -to Tomcat to forward the requests they should handle. -Apache Web Server will normally kill the children/threads when the load decreases. -But if the load is still there and even if only Apache handles the requests, -ie static contents, the children are kept and with them all the ajp13 connections, -even if they are no more used. -

-

-To close connections after some time of inactivity you can use connection_pool_timeout, -for more informations refer to workers.properties reference. -

-
- -
Apache
-

-Informations and FAQ about mod_jk and Apache Web Servers. -

-
Whenever I restart Tomcat, Apache locks up!
-

-The Ajp13 protocol keeps an open socket between Tomcat and Apache. -Release of mod_jk present in J-T-C handles the network failure. -But with very ancient releases of mod_jk, you may have to restart Apache as well. -

-
- -
Why do there exist two files mod_jk.so (-eapi ad -noeapi) in download directories for Apache 1.3?
-

-Many versions of Apache use a modified API, known at Extended API, developed for use with the -mod_ssl module. Starting with Apache 2.0 there is no more difference. -

- -

-For example, Apache 1.3 present in certains recent Linux distributions include the -mod_ssl module. -

- -

-So if you got such 'Extended Apache', you need to use mod_jk.so-eapi. -

- -

-You should use mod_jk.so-noeapi only for 'Standard Apache' (ie without mod_ssl). -

- -

-It's wise to avoid using EAPI modules on STD API Apache or to use standard API modules on EAPI Apache. -Allways be sure to have the mod_jk.so witch match your version of Apache -

-
- -
What's that message about 'garbled DSO ?'
-

-It's related to Apache EAPI, the message 'mod_jk.so is garbled - perhaps this is not an Apache module DSO ?' -just told you, that your're trying to install a mod_jk.so DSO module that was compiled on an Apache using EAPI, -like apache-mod_ssl or apache from Redhat distro 6.2/7.0 but your system use the standard apache with normal API. -

-
- -
And the message about 'module might crash under EAPI!
-

-Also related to EAPI, the message '[warn] Loaded DSO /usr/lib/apache/mod_jk.so uses plain Apache 1.3 API, -this module might crash under EAPI! (please recompile it with -DEAPI)', the mod_jk.so was compiled under normal -Apache with standard API and you try to install the module on an Apache using EAPI. -

-
- -
APXS is getting an error during the build of mod_jk, like rc=0 or rc=255. I tried all of the steps in the build section, what do I do now ?
-

-APXS is a Perl script that is created when you build the Apache web server from source. -Chances are that if you are getting these errors and you obtained Apache as a binary distribution, -that APXS is not configured correctly for your system. -Your best bet is to get the Apache source from http://httpd.apache.org and build it yourself. -Use the following for a basic build (read the Apache docs for other options): -

[user@host] ~ $ cd /usr/local/src
[user@host] ~ $ gzip -dc apache_1.3.19.tar.gz|tar xvf -
[user@host] ~ $ cd apache_1.3.19
[user@host] ~ $ ./configure --prefix=/usr/local/apache \
[user@host] ~ $ --enable-module=most \
[user@host] ~ $ --enable-shared=max
[user@host] ~ $ make
[user@host] ~ $ make install

-

-

-Note: The above steps assume that you downloaded the Apache source and placed it in your /usr/local/src directory. -

-
- -
Apache 2.0 complains about incorrect module version
-

-Since Apache 2.0 API still change often, the Apache 2.0 teams decide to put in headers of compiled modules the -Apache 2.0 version used to compile the module. This check is called Magic Module Number bump. -

-

-At start time Apache 2.0 check that version in modules headers and stop if it detect that a module was compiled -for another Apache 2.0 version. As such you should allways use modules compiled for the same Apache 2.0 version. -This check may be removed if the future. -

-
- -
Does it work for Apache 2.2?
-

-mod_jk works well with Apache 2.2. You need a binary module compiled for version 2.2 of the Apache web server. -A binary compiled for version 2.0 will not work. -

-

-Important parts of the functionality of mod_jk have been reimplemented as Apache httpd modules mod_proxy_ajp -and mod_proxy_balancer. These are part of the standard distributoin of Apache 2.2. The new modules do not contain -all features of mod_jk, but you get them automatically with every Apache 2.2. -

-
- -
JNI doesn't work with Apache 1.3
-

JNI workers have been deprecated. They will likely not work. Do not use them.

-

-JNI support requires a multi-threaded environment which is not the general case for Apache 1.3. -You should verify if Apache 1.3 has been build with thread support and if not you could add the -the pthreads library to your httpd.conf file. -

- -
-  # Add pthread to Apache in httpd.conf
-  LoadModule "/usr/lib/libpthreads.so"
-
- -

-Also keep in mind that JNI is suited for multi-threaded servers and you should consider upgrading -to Apache 2.x to support JNI. -

-
- -
JNI report that JVM couldn't be started under Linux
-

JNI workers have been deprecated. They will likely not work. Do not use them.

-

-Under Linux, you should set some environment variables BEFORE launching your Apache server : -

- -

export LD_LIBRARY_PATH=$jre/bin:$jre/bin/classic:$LD_LIBRARY_PATH

- -

-Also some Linux distributions have enabled a GLIBC feature called 'floating stacks' which may not works with kernel -less than 2.4.10 on SMP machines. You should disable floating stacks by exporting an environment variable : -

- -

export LD_ASSUME_KERNEL=2.2.5

- -

-You could have to update your service scripts, ie /etc/rc.d/init.d/httpd, to set these env vars -before your httpd server starts. -

-
- -
Mixed errors when building via configure
-

-configure assume you have some GNU tools already installed and configured for your system, and ad minima libtool. -

-

-Also some systems may have mixed cc and gcc setup which may make you puzzled when trying to link an Apache built with native -c compiler with a jk/jk2 build with gcc. -

-

-In case the make processing doesn't work as expected, you should use a GNU make gmake. -

-
- -
- Copyright © 1999-2011, Apache Software Foundation -
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