问题
I am using the Jetty/Solr build that comes with Solr and would like to run it in the background instead of in the terminal.
Right now I start it by java -jar start.jar but I would like it to log to a file and run in the background on the server so that I can close the terminal window.
I'm sure there is some java config that I can't find.
I have tried java -jar start.jar > log.txt & but no luck still outputs to the terminal window.
Thanks.
回答1:
Try something like:
nohup yourcommand > output.log 2>&1 &
nohup will prevent yourcommand from being terminated in the event you log out.
& will run it in the background.
> output.log will send stdout to output.log
2>&1 will redirect stderr to stdout
回答2:
nohup is used to execute commands that runs after logout from a shell. What you need here is '2>&1'. This redirects standart error to the standart output. So everything will be logged to log.txt. Try this
java -jar start.jar > log.txt 2>&1
Also you can add an '&' start it as a background process.
回答3:
You can run it with screen if you are on unix.
回答4:
You can properly install it as a linux service too.
cd to your jetty folder, for example mine is:
cd /home/spydon/jetty/
They have actually made most of the work with the jetty.sh file, so copy that one to /etc/init.d/
sudo cp ./bin/jetty.sh /etc/init.d/jetty
Then open the file with your favorite text editor, like vim or nano
sudo vim /etc/init.d/jetty
In the beginning simply uncomment (remove the hash(#)) three lines that says something like:
#chkconfig: 3 99 99
#description: Jetty 9 webserver
#processname: jetty
Meanwhile you have the text editor open, also add the jetty home directory to the beginning of the file, mine now looks like this:
#!/usr/bin/env bash
#
# Startup script for jetty under *nix systems (it works under NT/cygwin too).
JETTY_HOME=/home/spydon/jetty
# To get the service to restart correctly on reboot, uncomment below (3 lines):
# ========================
chkconfig: 3 99 99
description: Jetty 9 webserver
processname: jetty
# ========================
Now you should be able to start it with
sudo /etc/init.d/jetty start
And if you want it to run every time you reboot, simply add
sudo ln -s /etc/init.d/jetty /etc/rc1.d/K99jetty
sudo ln -s /etc/init.d/jetty /etc/rc2.d/S99jetty
This should work for most modern distros, but I've only tried it on debian based ones. You could also consider doing a symlink to the jetty.sh so it will be easier to upgrade.
回答5:
You may want to try nohup, as explained in this previous answer.
来源：https://stackoverflow.com/questions/4287561/how-to-run-solr-jetty-in-background