I'm trying to set up the Tomcat 7 connector mod_jk.so on OS X (10.8.3) so that calls to Tomcat will go through httpd from apache 2.2. The file mod_jk.so is in place. But where does workers.properties go? The instructions at http://tomcat.apache.org/connectors-doc/webserver_howto/apache.html just don't seem to say.
I know you're now using mod_proxy but I'm answering this for the record, at least to include the info when your *nix packaging framework is involved.
In Debian, the package apache2 installs apache with the configuration directory /etc/apache2/mods-available and the seperate package libapache2-mod-jk places an apache config file in this directory called jk.conf, which gets pulled in by apache at start-up.
jk.conf has the JkWorkersFile directive.
The libapache2-mod-jk package also installs a workers.properties file under /etc/libapache2-mod-jk.
So for OS X, you put your workers.properties file anywhere, e.g. rationally in the same dir as the httpd.conf, and then you have to put the directive either in your httpd.conf file, or that might contain an Include to pull in everything in a directory, e.g. conf.d where you can put custom stuff in your own files that won't get interfered with at package upgrades.
Please put your workers.properties file according to your JkWorkersFile configuration:
JkWorkersFile /etc/httpd/conf/workers.properties
I had the same problem. But later I found that I should first look whether I am using mod_jk.so or mod_proxy_ajp in httpd.conf. I turned out to be tha later one. So instead of editing the worker.properties, which I don't have, I should edit the httpd.conf: Add a ProxyIOBufferSize directive to Apache httpd's configuration.
ProxyIOBufferSize 65536
Hope it helps.
Ref: Here at the bottom of the page.
Related
I want to setup Apache and Glassfish on Ubuntu 16.04 server.
I have installed
apache2
libapache2-mod-jk
glassfish
The following are the steps I have followed
Configuring the MPM module
Set MaxRequestWorkers to 400 in /etc/apache2/mods-available/mpm_event.conf
Configuring the JK Module
<IfModule mod_jk.c>
JkWorkersFile /usr/share/glassfish4/glassfish/domains/<domain-doamin1>/config/workers.properties
JkLogFile /var/log/apache2/mod_jk.log
JkLogLevel error
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
JkRequestLogFormat "%w %V %T"
JkMountCopy all
</IfModule>
JkMount /myapp/* ajp13
<Location "/myapp/WEB-INF/">
require all denied
</Location>
Create a workers.properties file in your GlassFish domain's config directory
worker.list=ajp13
worker.ajp13.type=ajp13
worker.ajp13.host=localhost
worker.ajp13.port=8009
# load balancing only: worker.ajp13.lbfactor=50
connection_pool_size=10
connection_pool_timeout=600
worker.ajp13.socket_keepalive=False
worker.ajp13.socket_timeout=30
Create the JK listener in GlassFish using these commands
asadmin create-http-listener --listenerport 8009 --listeneraddress 0.0.0.0 --defaultvs server jk-listener
asadmin set server-config.network-config.network-listeners.network-listener.jk-listener.jk-enabled=true
then I restarted glassfish domain successfully but when i try to restart apache2 with sudo /etc/init.d/apache2 restart I get the error below
[....] Restarting apache2 (via systemctl): apache2.serviceJob for apache2.service failed because the control process exited with error code. See "systemctl status apache2.service" and "journalctl -xe" for details.
failed!
This error occurs when I edit the file jk.conf located under /etc/apache2/mods-available/jk.conf
Where am I going wrong. Is there a complete guide to accomplishing this? Finally the newer apache2 doesn't have the file httpd.conf and all the tutorials allover the Internet rely upon this file. Thanks in advance.
Since your objective is just to forward requests from Apache to GlassFish, not to loadbalance requests from Apache to multiple GlassFish servers, I would recommend avoiding mod_jk. You can certainly achieve your goal with it, but if you are new to the concepts involved, you will find it difficult to understand and maintain.
Instead you can use mod_proxy and, optionally, mod_proxy_ajp.
First, a definition:
AJP vs HTTP
AJP is a protocol like HTTP, but binary rather than text based. It has no secure/insecure options like HTTPS/HTTP since it is normally used behind a firewall and performs much better than HTTP for these scenarios. When you mark any GlassFish network listener as jk-enabled, you are enabling AJP communication, rather than HTTP.
You've installed Apache via the ubuntu apache2 package which has its own example structure to configuration which is different to the layout you would get if you downloaded and unzipped it. This has advantages, but we need to understand the Apache configuration file before getting to that.
Apache Configuration
Generally, you will see internet guides refer to httpd.conf as the configuration file to edit. This is just the default "parent" configuration file. In Debian/Ubuntu systems (and their derivations, like Linux Mint), the file to look for is apache2.conf.
This file is read, and its directives applied, from top to bottom, so if you have set the same property to two different values, the second will apply. (More accurately, they will both apply but the first will only apply until the second setting is read).
This file can also specifically "include" files and folders (where any *.conf file in an included folder will be included). These will be read in and merged with the main configuration at the point where the "include" statement is written. So the very last line in the main configuration file (if it is not specifying another file) will be the last line of configuration to be set, no matter what.
Debian config layout
I would highly recommend you read the opening comment in the apache2.conf file, since it will tell you all you need to know about the layout. Suffice it to say that keeping all the config in one file is very painful to maintain. The Debian package separates configuration into three categories:
sites
Sites are single configuration files for a website or web project. This could be anything: PHP, static HTML or a Java EE application deployed to an app server like GlassFish.
mods
Modules are subdivided into *.load files which load the actual libraries needed to run them, and *.conf files which have global configuration for the modules. Note that this configuration applies to every site that uses the module, so it is best to put any site/app specific module configuration in the appropriate site.conf file
conf
These files are just for any other general configuration which fits into a nice group. This could be SSL configuration like keystore and truststore locations.
When you look at the directory structure, you will see that each of these have 2 folders: *-available and *-enabled. This is because the Debian Apache package comes with 6 helper tools, a2ensite and a2dissite; a2enmod and a2dismod; a2enconf and a2disconf. The idea is that you follow these rules:
Never directly edit the apache2.conf file
only ever add or change files in the *-available folders
Use the helper tools to enable or disable sites/modules/conf files.
Answer
So to (finally) answer your question, I would do the following steps:
Enable mod_proxy_ajp
a2enmod mod_proxy_ajp
Create a new myApp.conf in sites-available. You can copy the default one, which is a good example. Assuming you have just want to forward all requests to GlassFish, you can use the default VirtualHost settings of ` which will process a request for any hostname on port 80. Use port 443 if you want to add HTTPS.
Add ProxyPass and ProxyPassReverse directives to the location of your server. If Apache and GlassFish are on the same server, it is likely you will want to use ajp://localhost:8080
ProxyPass / ajp://host_name:0000
ProxyPassReverse / ajp://host_name:0000
Note: This assumes you are using AJP. If that causes you problems, switch to HTTP by changing ajp to http above and disabling the jk-listener in GlassFish.
Once you have completed your myApp.conf configuration, remember to disable the default site:
a2dissite 000-default-site.conf
And enable your new site:
a2ensite myApp.conf
Those commands will appropriately modify the main apache2.conf and create the appropriate links in the sites-enabled folder.
That should be all you need. Now, everything that points to your hostname after the root / of the URL will be forwarded to the root context / of GlassFish.
I recently installed apache2 on ubuntu but I have a problem, my httpd.conf is empty. Can someone give me a clean copy of httpd.conf for apache2 on ubuntu?
Thanks!
Edit: I saw your answers but on wampserver httpd.conf is not empty and as you mentioned it is for user options. SO what should I do?
Edit2 : That's what I got on my apache2.conf, how I add modules, enable gzip and all of that?
[Deleted the contents, as they render the question unreadable and are useless, because that were the default Apache2 configuration under Ubuntu.]
The /etc/apache2/httpd.conf is empty in Ubuntu, because the Apache configuration resides in /etc/apache2/apache2.conf!
“httpd.conf is for user options.” No it isn't, it's there for historic reasons.
Using Apache server, all user options should go into a new *.conf-file inside /etc/apache2/conf.d/. This method should be "update-safe", as httpd.conf or apache2.conf may get overwritten on the next server update.
Inside /etc/apache2/apache2.conf, you will find the following line, which includes those files:
# Include generic snippets of statements
Include conf.d/
As of Apache 2.4+ the user configuration directory is /etc/apache2/conf-available/. Use a2enconf FILENAME_WITHOUT_SUFFIX to enable the new configuration file or manually create a symlink in /etc/apache2/conf-enabled/. Be aware that as of Apache 2.4 the configuration files must have the suffix .conf (e.g. conf-available/my-settings.conf);
It's empty by default. You'll find a bunch of settings in /etc/apache2/apache2.conf.
In there it does this:
# Include all the user configurations:
Include httpd.conf
OK - what you're missing is that its designed to be more industrial and serve many sites, so the config you want is probably:
/etc/apache2/sites-available/default
which on my system is linked to from /etc/apache2/sites-enabled/
if you want to have different sites with different options, copy the file and then change those...
It seems to me, that it is by design that this file is empty.
A similar question has been asked here:
https://stackoverflow.com/questions/2567432/ubuntu-apache-httpd-conf-or-apache2-conf
So, you should have a look for /etc/apache2/apache2.conf
I have configured mod_jk to allow load balance. I want to know if more workers could be dynamically added to workers.properties while apache is running?
No. workers.properties file is configured in some .conf files, to make change to .conf file take effect, you need to restart Apache.
See the thread about mod_jk configuration:
http://milestonenext.blogspot.de/2012/09/ssl-offloading-with-modjk-part-1.html
I have my app that serves on localhost:8080. I want to configure things so that it just servers on localhost:80 (or localhost without the port specified). I was told to follow these instructions.
My apache-tomcat that I downloaded is located at /home/myusername/tools/appname/apache-tomcat-6.0.33
I can't find an httpd.conf file in that dir... so I can't make the changes that the above article mentions. I am not sure what to do. I am new to apache/tomcat. Any help would be great!
Those instructions are for apache, which is different from apache's tomcat. What you have (the 6.0.33 thing) is apache's tomcat, which hosts/runs webapps but isn't typically used as a general webserver. You need to download and install apache, then you'll be able to follow those instructions.
You can download the apache webserver here: http://httpd.apache.org/download.cgi
Or if you are using an OS with a package manager, use your OS'es package manager instead.
Typically, the httpd.conf file should be at /etc/apache2/httpd.conf (or /etc/apache/httpd.conf).
So I'm trying out JSP for the first time. I found a tutorial that details the installation of the tomcat server and the mod_jk Apache module, but it's a bit outdated. Right now, I've got everything installed and the mod_jk.so file in the modules folder, along with the corresponding loadModule line in the httpd.conf file. The tutorial tells me to copy a file called 'workers.propperties' to the apache conf directory and do some changes inside it, but there's no such file in the win32 binary installation. However, there is a file in the zipped source code, but I'm not sure if I should use it.
I have installed JDK1.6.0U17/JRE6.0/Apache HTTPServer2.2.13/Tomcat6.0.20/Mod_JK1.2.28/Vista
First this question: do you actually need Apache HTTP Server for other purposes? If not, just leave it aside and run Tomcat standlone. I've namely seen too often that starters are somehow under the impression that they need both Apache HTTP Server and Apache Tomcat to be able to run JSP's. This is untrue. Just Tomcat is enough. It's a webserver and servlet container in one.