Thursday Jul 30, 2009

Installing AMP stack within GlassFish Web Stack 1.5...

Now that  Sun GlassFish Web Stack 1.5 release is done, let me walk you through the steps involved in setting up your AMP (Apache 2.2, MySQL 5.1 and PHP 5.2) stack working together. One of the other cool features of Sun GlassFish Web Stack 1.5 release , besides Web Stack Enterprise Manager, is its ability to support

  • installation via native packages (SVR4 Packages for Solaris 10 and RPM for RHEL5.2). This is typically the preferred way in large enterprises. This installation will require root privileges and provides integration with Solaris 10 SMF etc.
  • installation via IPS (Image Packaging System). This installation is typically preferred by developers and in enterprises where you have access to internet to download and install binaries from internet on your production machine !. This installation does not require 'root' privileges and all files (including web server document root and MySQL data directory) is configured under your installation directory. So, you might find it very intuitive to install, use , develop and even take it with you.

 Installing Web Stack 1.5 as a native package / rpm

  • Visit our Sun Web Stack 1.5 download page and 'click on Native components (does not include java component)' link to download our native packages. If you wonder, what is "java components" in this above link . Well, we refer "java components" as components like Tomcat, Hudson, GlassFish 2.1. Since, this blog is about setting up a PHP/MySQL based web site, you can reduce your carbon foot print by avoiding those extra bulky downloads..
  • unzip the downloaded tar ball and install by running the following command (you will need root privileges)

sriramn@sriramn:~$ sudo ./install amp

Now, if you are running on Solaris 10 and don't want to install on all local zones, then you could even do some thing like

sriramn@sriramn:~#  ./install -XG amp


For more information with related to this installation, please check out our Installation Guide. Once you have completed this installation, you might want to refer to our Getting Started Guide as to how to survive with our stack. This guide should help you with basic information like where to find our configuration files, how to start/stop servers etc.

Installing Web Stack 1.5 as IPS (Update Center)

IPS (Image Packaging System) is an open source technology built on Python and is the core underlying framework on how packages are delivered within OpenSolaris. This work was initially done for OpenSolaris.  Now, as with any open source projects, another open source project - Update Center has successfully ported this work for platforms like Solaris 10 and Linux.

Now, GlassFish Web Stack 1.5 release uses this Update Center open source project to deliver a minimal Python runtime and Update Center technology as part of initial download. Then you will need to fire up the Update tool GUI to download and install components that interests you.

Unlike OS native packages, Update Center technology does not verify or warn if you do not have installed any underlying dependent libraries that Web Stack 1.5 stack requires. So, we strongly recommend you to visit our System Package dependency link to ensure that you have these packages installed on your system.

Here is a quick walk through on how to get your AMP stack up and running with this: 

  • Visit our Sun Web Stack 1.5 download web page and download 'click on IPS based Packaging' link
  • Now, you will need to unzip the downloaded tar ball and fire up the update tool GUI. You will need to download some thing like

sriramn@sriramn:~$ unzip  webstack-image-1.5-b09-redhat-i586.zip

sriramn@sriramn:~$ cd webstack1.5

sriramn@sriramn:~/webstack1.5$ ./bin/updatetool 

(Note: You will need GUI configured or DISPLAY set properly to successfully run the above command.)

(Note: If you do not have GUI/X11 configured on your Solaris / Linux machine, then you can do some thing like below to install

from command line.)

sriramn@sriramn:~/webstack$ ./pkg/bin/pkg list  -> to list all the component available


Now, firing up the GUI, will welcome you with a nice GUI like this below

Now, you will need to click on 'Available Add-ons' to see all the Web Stack components listed (as shown below).

Note: If your company requires HTTP Proxy to be configured to access the internet, you will need to click on 'Preferences' windows and appropriately configure proxy information before proceeding any further.

Now, select Apache HTTP Server, PHP , PHP MySQL Connector, PHP APC and MySQL Community Server(5.1.30 version) components from this above list  and click on Install . You should see a confirmation window like below and if you see all the components that you need, click on 'Install' again. 

If you do not have GUI / X11 configured on your Solaris / Linux machine, then you could very well do some thing like below to install AMP stack from command line. 

sriramn@sriramn:~/webstack1.5$ ./pkg/bin/pkg list -a  -> to list all the component available

sriramn@sriramn:~/webstack1.5$ ./pkg/bin/pkg install sun-apache22 sun-php52 sun-php52-apc sun-mysql51 sun-php52-mysql -> to install and configure Apache, PHP and MySQL within your home directory.

sriramn@sriramn:~/webstack1.5$ ./bin/setup-webstack

At the end of this installation, you should have a fully configured Apache , PHP and MySQL runtime within your home directory/webstack1.5 directory.

You can now start the Apache and MySQL server by running the following command from your command line:

  sriramn@sriramn:~/webstack1.5$ ./bin/sun-apache22 start -> by default Apache should now run at port 10080

  sriramn@sriramn:~/webstack1.5$ ./bin/sun-mysql51 start -> by default MySQL server should now run at port 13306


Now, you should be able to install applications like Joomla, Drupal, MediaWiki by simply unzipping these applications under Apache document root (~/webstack1.5/var/apache2/2.2/htdocs) directory

 For example, installing applications like Joomla / Drupal or MediaWiki should simply involve going to Apache document root and unzipping the application and following through the installation process within your browser (http://localhost:10080/joomla etc)

  sriramn@sriramn:~/webstack1.5$ cd var/apache2/2.2/htdocs

  sriramn@sriramn:~/webstack1.5/var/apache2/2.2/htdocs$tar zxvf ~/tmp/joomla\*.gz


Most of the open source components are designed to be built and installed on the same machine. So, building a stack and making it run on different machine takes a bit of work but getting the same stack to be installed at multiple locations takes lots and lots of work. Well, we are doing this release for the first time and would love to hear your feedback and this took us lots and lots of effort to get it right.

You will find all our start/stop scripts under ~/webstack1.5/bin/sun-\* (or wherever you installed /bin). Similarly, you will find all the configuration files under ~/webstack1.5/etc/\* (or wherever you installed /etc). 

Hope you like what you see . If you run into issues, we encourage you to write back to us at our Forum.

Wednesday Jul 29, 2009

GlassFish Web Stack 1.5 is available now ..

If you didn't know already, GlassFish Web Stack is an open source project within OpenSolaris and offers production support (also available as free download) for open source web tier components like Apache Web Server, PHPMySQL, Tomcat, Hudson etc on Solaris 10 Update 5 (or above) and on RedHat Enterprise Linux 5.2 (or above). 

GlassFish Web Stack 1.5 , the latest update in this series, is available as of today and includes updated version components along with Enterprise Administration / Monitoring capability. Please refer to our Getting Started Guide for more information on how to get  your site quickly up and running using GlassFish Web Stack .

Some of the highlights of this release are :

You can try out GlassFish Web Stack 1.5 from here. GlassFish Web Stack 1.5 component runtime  is available as a free download for Solaris and Redhat Enterprise Linux and we hope you will choose Sun for your production support requirements.

Monday Apr 27, 2009

DTrace probes within MySQL 5.1 in OpenSolaris Web Stack

With the recent release of OpenSolaris 2009.06 build 111a , you will notice that MySQL 5.1 is integrated within AMP meta cluster. What this means is that now after installing OpenSolaris 2009.06, you can now easily install MySQL 5.1, Apache 2.2.11 and PHP 5.2.9 components by using either Package Manager or running the following command from the command line window :

pfexec pkg install amp

For more back ground on how to install these components on OpenSolaris, check out my earlier this and this link.

DTrace probes within MySQL 5.1

One of the goals of Open Solaris Web Stack project , that I am currently involved with, has been to enhance the number of static probes within open source web tier components like Apache, MySQL, PHP and Ruby . This is to provide the web administrators with complete end to end "under the hood" monitoring functionality. With the upcoming release of OpenSolaris 2009.06, we are making more progress along these lines - now  MySQL 5.1 includes static DTrace probes that are back ported from MySQL 6.0 source tree. For detailed information on these probes, please refer to MySQL 6.0 DTrace probe reference. Similarly, PHP 5.2.9 within OpenSolaris PHP runtime also now includes enhanced static DTrace probes as well. Ah, if you wonder on the status of Ruby, Ruby DTrace probes is already integrated within Ruby in OpenSolaris !.

Coming back to MySQL 5.1 DTrace probe , the title of my blog today, I thought, it is worthwhile to mention some of the few probes that are made available for MyISAM Key cache (but is still undocumented..)

\* keycache-read-start (filepath, bytes, mem_used, mem_free)  -> This probe is fired at the start of key cache read operation and provide the following arguments :

  1. filepath -> MyISAM index file
  2. bytes -> Size of the read request.
  3. memory used
  4. memory available

\* keycache-read-done(mem_used, mem_free) -> This probe is fired at the end of keycache read operation.

\* keycache-read-block(bytes) -> This probe is fired if MyISAM key cache performs a blocked read from key cache.

\* keycache-read-hit / keycache-read-miss -> This probe is appropriately fired whether a given request is available within MyISAM key cache file .

\* keycache-write-start(filepath, bytes, mem_used, mem_free) -> This probe is fired at the start of key cache write operation and provide the following arguments :

  1. filepath -> MyISAM index file
  2. bytes -> Size of the read request.
  3. memory used of the current key cache
  4. memory available

\* keycache-write-block(bytes) -> This probe is fired while performing blocked key cache write operation. 

\* keycache-write-end(mem_used, mem_free) -> This probe is fired at the end of keycache write operation.

Monday Jan 12, 2009

What's new with AMP stack in OpenSolaris 2008.11

If you are new to OpenSolaris, please check out this blog on how to get the AMP stack for this platform. 

Since the initial release of OpenSolaris 2008.05 - in the last 4-5 months -  our Web Stack project team has been busy revving up AMP (Apache, MySQL and PHP) stack specific bugs for OpenSolaris 2008.11 as well as porting this stack on Solaris 10 and RedHat Enterprise Linux 5 platforms as part of Sun Web Stack 1.4 release. For more information on this Sun Web Stack 1.4 release, check out this blog from my colleague - Jyri Virkki.

Now, in this blog, I thought I will write some of the important technical issues that has been addressed within AMP stack  for OpenSolaris 2008.11 release.

  1. General version update of AMP components like Apache = 2.2.9, PHP = 5.2.6 and MySQL = 5.0.67.
  2. Apache and PHP configuration files have been updated to provide better performance out of the box.
  3. Apache 2.2.9 now includes additional modules like Perl, FastCGI, DTrace etc
  4. Apache now provides various sample configurations like SSL configuration within /etc/apache2/2.2/samples-conf.d directory. 
  5. MySQL 5.0 server (64-bit) is also now available . However, MySQL server defaults to 32-bit by default. If you would like to run MySQL server as 64-bit, please refer to Administering MySQL server documentation within our wiki.
  6. Experimental MySQL 5.1 server is now available within webstack repository. However, to use MySQL 5.1 within OpenSolaris 2008.11, you will need to explicitly point to Web Stack repository to download and install this server. I guess, more on this in a separate blog !
  7. PHP file layout has been modified to be more in synchronization with the rest of the components. New PHP 5.2.6 file layout within OpenSolaris 2008.11 is /usr/php/5.2 - for all standard binaries, /etc/php/5.2 - for all configuration and /var/php/5.2 - for all data, pecl / pear modules and session specific contents. Also, at the time of startup , PHP engine will look and load all the INI files found under /etc/php/5.2/conf.d directory.
  8. PHP extensions like APC, DTrace is now enabled by default. Also, PECL extensions like XDebug, Memcache, Suhosin, idn and tcpwrap is bundled within OpenSolaris 2008.11. However, they are disabled by default. These extensions are bundled as individual ini files within /etc/php/5.2/conf.d directory.
  9. Individual PHP extensions can be either enabled or disabled by editing their corresponding ini files within /etc/php/5.2/conf.d directory and then restarting Apache SMF service. For more information on restarting Apache SMF service, please visit our Administering Apache Server documentation within our Web Stack Wiki.
  10. PHP extension now includes PEAR / PECL support as well. So, now it should be easy for developers to now download and install their favorite extensions. So, if you wonder as to how to use PEAR or PECL within OpenSolaris, you could do some thing like below
    1. /usr/php/bin/pear install XML_Parser
    2. /usr/php/bin/pecl install inclued

Now, if you install these PECL extensions as shown above, please remember to enable them by editing the php.ini found within /etc/php/5.2/php.ini  location.

You can load any of these PECL php extensions by editing php.ini and adding the following line at the end of the file

extension = [extension name].so

Note: Please note that unlike Linux or other platforms, Solaris engineering folks would like to avoid writing any user data (like data not provided by OS) within /usr location. So, we don't write any dynamic data into /usr. So, what this means is - PEAR or PECL will now install modules under /var/php/5.2/modules directory. However, PHP engine has been patched to look for modules both under /usr/php/5.2/modules as well as /var/php/5.2/modules directory

Hopefully, this acts as a good starting point on what to expect with AMP stack in OpenSolaris 2008.11. For more comprehensive information, please visit our Getting Started Guide or please visit your feedback within our OpenSolaris Web Stack forum .

Setting up AMP Stack within OpenSolaris

With the first release of OpenSolaris - OpenSolaris 2008.05 -  I wrote this and this and this blog on how to use AMP stack for this platform. Well, these blogs very much holds true for the latest release of OpenSolaris - OpenSolaris 2008.11 .

However, OpenSolaris 2008.11 includes a nice GUI application known as Package Manager  is available which further simplifies the process of downloading and configuring software applications that are available within its software repository.  

Let us use this application in this blog to see how easy it is to get an AMP (Apache, PHP and MySQL) stack going on your OpenSolaris 2008.11.

Assuming you have successfully installed opensolaris , let us start Package Manager as shown here

Now, you will need to choose whether you need either 

  • amp -  only the Apache 2.2.8 2.2.9, PHP 5.2.6 and MySQL 5.0.65 5.0.67 runtime
  • amp-dev  -  complete development environment and its tools like cvs, subversion, netbeans along with amp runtime

 and any other software packages that you are interested and click on Install / Update. 

Before Package Manager actually installs the packages on your system, you will get another chance to review your selection like below.

Now, click on Next should start the installation process. That should all be required to complete the installation of AMP runtime stack for OpenSolaris.  

Finally, if you are a GUI person and would prefer a GUI way to start/stop Apache and MySQL services as well as to edit your Apache configuration files then you might want to initialize the Web Stack environment as shown below

 and will need to enter your 'root' password for the initialization to complete. 

Now, if you are a command line person - like myself, you can manage your Apache and MySQL SMF service as below

  • For starting Apache and MySQL service, open a command line window and run the following command

    pfexec /usr/sbin/svcadm enable http:apache22

    pfexec /usr/sbin/svcadm enable mysql:version_50

  • Similarly, for stopping these services, run the following command:

    pfexec /usr/sbin/svcadm disable http:apache22

    pfexec /usr/sbin/svcadm disable mysql:version_50

If in case, you wonder what is SMF - you might wanna check out Service Management Facility project page for more information on how this is useful to you.  

Finally, if you run into any issues, you can check out our  Getting Started Guide or our Web Stack wiki or  feel free to post your issues at our  Web Stack forum page. 


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