I am developing a spring boot app with embeded tomcat server. When I start the project from spring and run it, I see the application which I ran on Virtual machine(windows)'s localhost while I should see my application which I am developing. It's strange that I see the application from virtual machine even when VM is shut down. Does it mean the tomcat has stored it in cache? How do I delete that data? I am using mac OS catalina.
Once run the below command in your terminal to kill your localhost then try
kill -9 $(lsof -t -i:8080)
Related
I am running my Tomcat on my IntelliJ IDE. Whenever I stop my server, via the IDE, it never stops the server. Instead, I have to go manually kill it via the following command in my terminal:
ps -ef | grep tomcat
kill -9 <id>
I am not sure what is causing this issue. Is it safe to kill it every time?
IntelliJ IDEA just calls the standard Tomcat shutdown script. If it can't stop the server, the issue is most likely with the application you have deployed. If the app creates threads and doesn't properly terminate them on the server shutdown, Tomcat will not be able to stop gracefully. You can use jstack to see which threads are running and preventing the server shutdown.
I started a spring boot application using gradle bootRun.
Doing ctrl-c in the terminal where I launched the command does not stop the application.
What is then the correct way of stopping it?
You can use the command gradle -stop to stop the Spring Boot application.
Not sure what operating system you are using but I am on a mac and was having the same problem, command + C wasn't working (on a mac the command key is equal to the Windows control key) but I used control+C and it did work. If you're on a Windows machine this doesn't help you but thought this might help others who are new to a mac.
I have Ubuntu server on Digital Ocean and I wrote Spring web app and now I want to put it in production.
I upload it via FTP to the server and I open my console via Putty and I use this command:
java -jar name.jar
Spring is started after that and when I open my web app everything is working fine, but when I close my Putty session my Spring web app does not work anymore. It seems like when I close my Putty session that also Spring web app is closed.
How to solve this?
While what KLHauser suggested will work, but if the vm is restarted in the cloud (which happens) your application will not automatically restart. Also stopping your application with kill -9 is error prone and dangerous, because you accidentally may kill the wrong process.
See running as Linux service section of Spring Boot documentation on how to do that.
If you’ve configured Spring Boot’s Maven or Gradle plugin to generate
a fully executable jar, and you’re not using a custom
embeddedLaunchScript, then your application can be used as an init.d
service. Simply symlink the jar to init.d to support the standard
start, stop, restart and status commands.
The script supports the following features:
Starts the services as the user that owns the jar file
Tracks
application’s PID using /var/run//.pid
Writes
console logs to /var/log/.log
Assuming that you have a Spring Boot application installed in
/var/myapp, to install a Spring Boot application as an init.d service
simply create a symlink:
$ sudo ln -s /var/myapp/myapp.jar /etc/init.d/myapp Once installed,
you can start and stop the service in the usual way. For example, on a
Debian based system:
$ service myapp start
Just use java -jar name.jar & and the application is started in new process thread.
by adding also > log.txt directly at the end you would also have a log.
I installed the Apache Tomcat/7.0.65 on my Mac, then, run the startup.sh. It works great fine and the service is available immediately. But when I run the shutdown.sh to stop the service. It seems that the shell scripts can not aware of the tomcat running. Would someone please help me with this problem?
I had a similar problem. In my case, although running <Tomcat Root>/bin>./shutdown.sh was technically working (the tomcat process was being killed), the tomcat service was restarting automatically (after a few seconds).
If you run <Tomcat Root>/bin/catalina.sh stop or <Tomcat Root>/bin/shutdown.sh and you see that after a few seconds tomcat restarts => that basically means that you are not able to shutdown tomcat for good. Thus, if you want to make sure that tomcat does not restart automatically, run brew services stop tomcat.
OBS: If you want to find what is your <Tomcat Root> run brew ls tomcat
The message i see when i try to run Integrated Weblogic server is
Port conflicts have been detected and the affected ports have been automatically reassigned to available ports.
Then I am unable to start my server. I have tried restarting the server but it did not help.
Windows
Press Ctrl+Shft+Esc click on Processes, End the JDeveloper(jDev64W.exe in my case) and Java instances(java.exe in my case). Now restart the JDeveloper and try running the Integrated Weblogic Server again.
Linux
Use the command jps -l. Select the process id corresponding to weblogic.server.
Use kill -9 <process-id> to kill the running instance
If it still does not work, restart the computer to ensure all the ports have been released.