CODEWITHSUNDEEP
ubuntutomcatubuntu-18.04tomcat9
Stelios Botonakis
Stelios Botonakis

Reputation: 183

How can I remove tomcat 9 installation from my ubuntu 18.04 machine?

What commands must I run so that I can unistall tomcat9 and install tomcat8. The reason I am doing this is that I cannot get fuseki.war to run as application. I get

FAIL - Application at context path [/fuseki] could not be started

Upvotes: 0

Views: 19865

Answers (1)

charlycou
charlycou

Reputation: 1988

1. Remove tomcat

To remove system and config files from Ubuntu.

sudo apt remove --purge tomcat9 tomcat9-docs
sudo apt autoremove
sudo apt autoclean

Locate and remove manually the remaining files if there are some

sudo apt install locate && sudo updatedb
locate tomcat

2. Install apache Jena fuseki

wget https://archive.apache.org/dist/jena/binaries/apache-jena-fuseki-3.8.0.tar.gz
cd /opt
sudo tar xzf ~/apache-jena-fuseki-3.8.0.tar.gz
sudo ln -s apache-jena-fuseki-3.8.0 fuseki

Create fuseki user

sudo adduser --system --home /opt/fuseki --no-create-home fuseki

For install we follow the « Filesystem Hierarchy Standard »:

  • code in `/opt/fuseki
  • database in /var/lib/fuseki
  • logs in /var/log/fuseki
  • config files in /etc/fuseki

In /var/lib folder:

sudo mkdir -p fuseki/{backups,databases,system,system_files}
sudo chown -R fuseki fuseki
cd /var/log
sudo mkdir fuseki
sudo chown fuseki fuseki
cd /etc
sudo mkdir fuseki
sudo chown fuseki fuseki
cd /etc/fuseki
sudo ln -s /var/lib/fuseki/* .
sudo ln -s /var/log/fuseki logs

Create the service

edit in /etc/default/fuseki:

FUSEKI_HOME=/opt/fuseki

FUSEKI_BASE=/etc/fuseki

FUSEKI_USER=fuseki

JAVA_OPTIONS="-Xmx2048M"

Create symlink in init.d:

cd /etc/init.d
sudo ln -s /opt/fuseki/fuseki .

Start the service

sudo service fuseki start
sudo update-rc.d fuseki defaults

Upvotes: 2

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