Tomcat 8 – Troubleshooting Initial Install Startup Issues

centostomcatwebserver

I am trying to install tomcat on a new CentOS 7 virtual machine. I successfully installed apache httpd, and am able to get the apache test page when I type the ip of the virtual machine into a web browser on another computer in the network. But I am getting the following error message when I type systemctl start tomcat:

Job for tomcat.service failed. See 'systemctl status tomcat.service' and 'journalctl -xn' for details.  

Here is the complete history of commands in the install of java and tomcat:

I first started by installing java using the instructions from this tutorial because the tomcat instructions (second block below) wanted me to use openjdk, and I need to use real java:

//Install Java
# cd /opt/
# yum install wget
# wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz"

# tar xzf jdk-8u60-linux-x64.tar.gz

# cd /opt/jdk1.8.0_60/
# alternatives --install /usr/bin/java java /opt/jdk1.8.0_60/bin/java 2
# alternatives --config java
(Select the version you want)
# alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_60/bin/jar 2
# alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_60/bin/javac 2
# alternatives --set jar /opt/jdk1.8.0_60/bin/jar
# alternatives --set javac /opt/jdk1.8.0_60/bin/javac
# java -version (checks to see you install correct version)
# export JAVA_HOME=/opt/jdk1.8.0_60
# export JRE_HOME=/opt/jdk1.8.0_60/jre
# export PATH=$PATH:/opt/jdk1.8.0_60/bin:/opt/jdk1.8.0_60/jre/bin

Note that the preceding tutorial does not explain how to put the environment variables in /etc/environment, so I stopped before that command.

The following commands are from this other tutorial. I started at the point after installing java:

//Install Tomcat
Login as sudo user, not root.
# sudo groupadd tomcat
# sudo useradd -M -s /bin/nologin -g tomcat -d /opt/tomcat tomcat
# cd ~
# wget http://mirrors.gigenet.com/apache/tomcat/tomcat-8/v8.0.27/bin/apache-tomcat-8.0.27.tar.gz
# sudo mkdir /opt/tomcat
# sudo tar xvf apache-tomcat-8*tar.gz -C /opt/tomcat --strip-components=1
# cd /opt/tomcat
# sudo chgrp -R tomcat conf
# sudo chmod g+rwx conf
# sudo chmod g+r conf/*
# sudo chown -R tomcat work/ temp/ logs/
# sudo vi /etc/systemd/system/tomcat.service
Cut and paste the following file contents:
##################################################
# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=forking

Environment=JAVA_HOME=/usr/lib/jvm/jre
Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat
Environment=CATALINA_BASE=/opt/tomcat
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'

ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/bin/kill -15 $MAINPID

User=tomcat
Group=tomcat

[Install]
WantedBy=multi-user.target
##################################################
# sudo systemctl daemon-reload

# sudo systemctl start tomcat
Job for tomcat.service failed. See 'systemctl status tomcat.service' and 'journalctl -xn' for details.
# sudo systemctl start tomcat.service

Job for tomcat.service failed. See 'systemctl status tomcat.service' and 'journalctl -xn' for details.
# sudo systemctl enable tomcat.service
ln -s '/etc/systemd/system/tomcat.service' '/etc/systemd/system/multi-user.target.wants/tomcat.service'
# sudo systemctl enable tomcat

# sudo systemctl status tomcat.service
tomcat.service - Apache Tomcat Web Application Container
   Loaded: loaded (/etc/systemd/system/tomcat.service; enabled)
   Active: failed (Result: exit-code) since Tue 2015-10-13 11:05:31 PDT; 47s ago

Oct 13 11:05:31 localhost.localdomain kill[20887]: -q, --queue <sig>      use sigqueue(2) rather than kill(2)
Oct 13 11:05:31 localhost.localdomain kill[20887]: -p, --pid              print pids without signaling them
Oct 13 11:05:31 localhost.localdomain kill[20887]: -l, --list [=<signal>] list signal names, or convert one to a name
Oct 13 11:05:31 localhost.localdomain kill[20887]: -L, --table            list signal names and numbers
Oct 13 11:05:31 localhost.localdomain kill[20887]: -h, --help     display this help and exit
Oct 13 11:05:31 localhost.localdomain kill[20887]: -V, --version  output version information and exit
Oct 13 11:05:31 localhost.localdomain kill[20887]: For more details see kill(1).
Oct 13 11:05:31 localhost.localdomain systemd[1]: tomcat.service: control process exited, code=exited status=1
Oct 13 11:05:31 localhost.localdomain systemd[1]: Failed to start Apache Tomcat Web Application Container.
Oct 13 11:05:31 localhost.localdomain systemd[1]: Unit tomcat.service entered failed state.

Doing a yum localinstall of an updated jdk rpm, as suggested in this other posting, did not work.


EDITS:


As per @Bram's suggestion, I changed the config file to the following, but am still getting the same error:

# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=forking

Environment=JAVA_HOME=/opt/jdk1.8.0_60
Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat
Environment=CATALINA_BASE=/opt/tomcat
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'

ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/bin/kill -15 $MAINPID

User=tomcat
Group=tomcat

[Install]
WantedBy=multi-user.target

Also, as per @JeffSchaller's comment in chat, I was able to get tomcat to start natively as follows:

[user@localhost tomcat]$ sudo /opt/tomcat/bin/startup.sh
Using CATALINA_BASE: /opt/tomcat
Using CATALINA_HOME: /opt/tomcat
Using CATALINA_TMPDIR: /opt/tomcat/temp
Using JRE_HOME: /
Using CLASSPATH: /opt/tomcat/bin/bootstrap.jar:/opt/tomcat/bin/tomcat-juli.jar
Tomcat started.
[user@localhost tomcat]$

Thus the problem in this OP seems to be with the systemd config. How can I fix it?

Best Answer

I had the same problem, fixed it by:

  1. giving tomcat user ownership of the whole tomcat directory:

    cd /opt && sudo chown -R tomcat tomcat/
    
  2. and commenting out below line in /etc/systemd/system/tomcat.service:

    Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
    
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