Wednesday, September 18, 2013

Installing Glassfish on Ubuntu 12.04

This is what I needed to do to get the Glassfish application server running on Ubuntu 12.04.

a) Install JRE for Ubuntu 12.04. Download the version applicable for you from the official website.

b) Configure your system to use the JRE you just downloaded. You can do this as follows:

---- First add the version of JRE you downloaded to the list on your system.

sudo update-alternatives --install /usr/bin/java java /bin/java 0

---- Then ensure that all Java programs will use that version.

sudo update-alternatives --config java

c) Install a JAR archiving program. I used Fastjar from the apt repository.

sudo apt-get install fastjar

d) Download the Java EE SDK with Glassfish and JDK from the official website. Make sure you download the version applicable to you.

e) Once the download is complete ensure that the file can be run. If it doesn't have executable permissions, run chmod 755 to make it executable.

f) Run the installer using ./filename and follow the prompts. If you're lucky everything should go well. If you're not it'll hang at the penultimate step, taking forever to create a new domain.

g) The problem apparently is with Glassfish and some funny bug which needs your real hostname to be in the /etc/hosts file. At least that's what fixed it for me. Here is what my /etc/hosts file looks like.    javaee    localhost.localdomain    localhost    javaee    localhost

Maybe you don't even need the 2nd line. Maybe I'll confirm that some day. Or someone will :)

h) Reboot once (maybe not needed) and run the installer again. All should be good this time round.

i) You can also Cancel the installer if it hangs while creating a domain and create a domain manually using asadmin as follows.
sudo ./asadmin --user admin

... and follow the instructions there. Have fun :)

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