Once you have the installation completed, you will probably be eager to start Tomcat and see if it works. This section details how to start up and shut down Tomcat, including specific information on each supported operating system.

It also details common errors that you may encounter, enabling you to quickly identify and resolve any problems you run into. The correct way to start and stop Tomcat depends on how you installed it. For example, if you installed Tomcat from a Linux RPM package, you should use the init script that came with that package to start and stop Tomcat. Or, if you installed Tomcat on Windows via the graphical installer from tomcat. Details about each of these package-specific cases are given in the next several sections.

If you installed Tomcat by downloading the binary release archive. There are several scripts in the bin directory that you will use for starting and stopping Tomcat. All the scripts you will need to invoke directly are provided both as shell script files for Unix.

When referring to these, we have omitted the filename extension because catalina. Therefore, the name in the table appears simply as catalina. You can infer the appropriate file extension for your system.

The main Tomcat script. This runs the java command to invoke the Tomcat startup and shutdown classes. This is used internally, and then only on Windows systems, to append items to Tomcat classpath environment variables. This makes a crypto digest of Tomcat passwords.

Use it to generate encrypted passwords. This is also only used internally and sets the Tomcat classpath and several other environment variables. This is a generic Tomcat command-line tool wrapper script that can be used to set environment variables and then call the main method of any fully qualified class that is in the classpath that is set.

This is used internally by the digest script.Tomcat occasionally crashes if you do frequent hot-deploys or if you are running it on a machine with low memory. Every time tomcat crashes someone has to manually restart it, so I wrote a script which automatically detects that tomcat has crashed and restarts it. This file contains the process id of the tomcat process running on the machine. The pseudo logic in that case would be:.

You can implement the above logic as follows.

Automatically Launch / Stop EC2 Instances Using Shell Script & AWS CLI

The following is experimental and is merely a suggested way, test it on your computer before using it. The most common reason is low memory. For example, if you have allocated MB of max memory to tomcat and enough memory is not available on that machine. Name required. Mail will not be published required. You can use these HTML tags. SOPA breaks our internet freedom! Any site can be shut down whether or not we've done anything wrong. Home About. Comments Posts. How to automatically recover Tomcat from crashes.

June 27th, Tags: autoautomationhowtojavalinuxtomcatunix Category: javaTech 6 comments. Leave a Reply Cancel. Plugin by wpburn. Recent Posts. Non-techie links. Amateur Photography. Stop SOPA! Vineet Manohar's blog Java, Web 2. Related posts: How to rotate Tomcat catalina. Tags auto automation cache cargo clickframes deserialize eclipse el example firefox Google google analytics howto html http java java7 java 7 jaxb jboss jetty jpa jsf linux mac maven maven plugin maven selenium migration mvn performance pom.I have had many clients ask me if Liferay has management scripts for Apache Tomcat.

Write a deep dive into how you use Liferay projects in your technology stack. Or let people know useful tips and tricks for a particular functionality. The Liferay community needs you! Sample Tomcat Startup Scripts. Brett Swaim. Published Date 6 Years Ago - Views. The last step is actually linking this script to the startup folders with a symbolic link. Execute these two commands and we should be on our way. Comment 9.

shell script to automatically restart tomcat if stopped

More Blog Entries Groovy script to update document permissions. Gwowen Fu. Twitter Facebook. UI Developers, make your life easier. Iliyan Peychev. Brett, nice meeting you yesterday after your session on clustering. I came to the symposium to get answer on couple of open question regarding licensing and clustering with respect to auto scaling on a cloud environment. I got those from you at the very last technical session of the symposium.

I guess no one goes empty handed from the symposium, now quite literally. Please sign in to reply. Reply as Glad to be of service! Nice script, but if you have more then one instance of tomact running, it will allow only to start one of them, because you grep only for org. Bootstrap, so you should also grep for the tomcat home dir Regards Daniel. Absolutely true. For the client I made this for they were only running one JVM per box. It could and should be improved upon based on your specific needs.

Shell Programming and Scripting

Couple of minor points. Setting the rc symlinks should be done with chkconfig since this script supports it. Not all distros have those symlinks in that place.

Secondly add exit 99 or similar after line 82 - tomcat not running. This script always returns success, puppet wants the exit status to be 'correct'. Nice, this will replace my simpler version next time.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

I am using a shell script to start tomcat server if it is not running. I am running this script in cronjob to check it frequently. This is my script. But whenever I run this script, it gives me an error. If tomcat is not running then the error is :.

Tomcat: The Definitive Guide, 2nd Edition by Jason Brittain, Ian F. Darwin

I am a new bee to shell scripting. Please help me out. Of course it would be much better to use a process monitoring tool like monit or supervisor. Learn more. Asked 4 years, 10 months ago. Active 1 year, 10 months ago.

shell script to automatically restart tomcat if stopped

Viewed 2k times. This is my script! I cannot move forward until I resolve this issue. Active Oldest Votes. Or, could you be more tolerant about output from the script?

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Please visit this page to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.

For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration.

This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Hello all - I'm a Java programmer but I've managed to cobble together a shell script to restart Tomcat that works well on Slackware It does kill the Tomcat process and it does run the start script for Tomcat, but the Tomcat process dies for lack of a better term after my script completes.

That is, issuing "ps -ef grep tomcat" to look for it yields empty results. I've poked around and tried a few changes to the script but obviously haven't been able to figure out the issue. Owner of both my script and the Tomcat script: root Permissions on both scripts: rwxr-xr-x Below is the script: Code:. Hi -- I checked out your zero-reply thread because you said it was a scripting problem and I like scripting and use Debian.

I know nothing about tomcat, btw. Since you are a programmer and have a fairly fancy script, I am assuming you know what grep does If Code:. Find More Posts by pcardout. Of course you know that grep is case-sensitive. You can grep -i if you don't want it to be Hi there - First off, thanks for your response. I think I need to explain the problem a bit further, so. So I guess startup. Your suggestion to "make liberal use of the 'which' command" helped me to locate the problem. When the startup.

I believe I added those variables for the purposes of creating a Cron job. I just commented them out and ran the script from the command line. I'll uncomment those variables and correct them, then add a job for my script.Today's Posts. Quick Links. Search Forums. Show Threads. Show Posts.

Shell Programming and Scripting. How to check for and start the Tomcat using a script. Registered User. Join Date: Sep Hello Everyone. I am a novice with shell scripting and have written some minor shell scripts to copy files and such that.

Now I have a requirement to write a shell script to go check if Tomcat running in the same server is up or not, if not then run the Tomcat startup script. Then put this script in a cron. At this point I have few ideas but I just don't know how to bind them into a running script or even know if its the right direction to follow. I would very much appreciate if some one can guide me through this. Any suggestions and ideas would be greatly appreciated.

Thanks in Advance. Join Date: Aug Code :. Eagle, Thanks. I wanted was to create a shell script that will be put in a cronjob to run every say 5 hours daily and the script will check if the Tomcat is up or not if not then start it automatically without having to do it manually.

Going your way, as you pointed how to make a shellscrpit read the contents of "ps -ef grep java" and figure out if Tomcat is up or not if not then run ". Sorry for late reply, I hope it'll give you an idea to do it. I checked a production machine which is working over tomcat but i coudlnt be sure what is the right command to see that tomcat is up?

Tomcat's default port is Reason: forget st to add. Thanks a bunch!!! Script monitor website wth default tomcat script. Hi all, on our application server we have the following script that monitor the status of the website, my problem here is that i have edite the retries from 3 to 5, and the timewait to second, so the script should check 5 times every 2 minutes, and if the fifth check fails it must restart Montioring Script Tomcat catalina.

Hi, I need to monitor the tomcat log file called "Catalina. Iam using SolarisGet the latest tutorials on SysAdmin and open source topics. Write for DigitalOcean You get paid, we donate to tech non-profits. DigitalOcean Meetups Find and meet other developers in your city.

Become an author. To ensure that the most imperative programs remain online as much as possible even after a server crash or rebootone can create a simple bash script to check if the program is running, and if it is not, to launch it. By using cron to schedule the script to be executed on a regular basis, we can make sure that program relaunches whenever it goes down. The first step in this process is to create the script itself.

There are a variety of programs such as upstart, supervisor, and monit, that have the capability to start and monitor applications on a virtual private server in a very nuanced way— this bash script will simply provide an on switch.

Once you have saved the script, you must give it executable permissions in order to be able to run it:. Apache can be replaced with any required application. Should you want to set up the script for a variety of applications, you can create a new script for each one, placing it on its own line in the cron file. With the script in hand, we need to set up the schedule on which it will run.

The cron utility allows us to schedule at what intervals the script should execute. Start by opening up the cron file:. The most often that the script can run in cron is every minute. Should you want to set up such a small increment, you can use this template:. Setting up this simple script will keep the program starting up after it shuts down for any reason.

This is convenient as it will ensure that the longest time that a program will be down is for the interval of time that you specified in the cron configuration. Should you need a program that is even slightly more subtle, you can set up the details of your startup with one of the several server monitoring programs SupervisorUpstartor Monit.

shell script to automatically restart tomcat if stopped

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shell script to automatically restart tomcat if stopped

Twitter Facebook Hacker News. DigitalOcean home. Community Control Panel. Hacktoberfest Contribute to Open Source. By Etel Sverdlov Become an author. Bash Script The first step in this process is to create the script itself. Below is a sample script that starts apache if it finds it off.


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