Fedora :: Running Java App As Daemon
Aug 28, 2009
I'm new to Fedora and have just purchased a subscription to a GoDaddy Virtual Dedicated Server, which I'm able to control using SSH.I have a Java application that I want to run as a daemon on this VDS. Some google searching yielded a bunch of different methods of doing this, none of which I'm sure would be guaranteed to work with Fedora, so I was hoping someone here could give it to me straight and fill me in on the simplest way of doing this.What is the best/simplest way to run a Java application as a daemon on Fedora?
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Jul 7, 2010
I have a java program which I need to run as a service or daemon. What is the most stable method to do it? It will be heavy processing socket programming which will be continously receiving data?
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Jan 23, 2010
I'm having some problems getting my screensaver to work automatically.If I start the screensaver config program then it gives me this message: "The XScreenSaver daemon doesn't seem to be running on display ":0.0". Launch it now?" If I click yes then my screensaver works exactly as expected.How can I get the XScreenSaver daemon to start automatically?
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Mar 3, 2010
I have a java processing running as a system service using a shell script to launch it. It runs under a user other than root via sudo The process runs just fine but seems to die sometimes for no apparent reason. When the process is killed normally (via service stop), it fires a shutdown hook in java and you can see the process going away. What I see in the log now is nothing the process just dies. When I checked the system.log I found at the same time this:
Code:
messages:Mar 2 19:43:22 beta_web gconfd (sifagent-16786): starting (version 2.14.0), pid 16786 user 'sifagent'
messages:Mar 2 19:43:22 beta_web gconfd (sifagent-16786): Resolved address "xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only configuration source at position 0
messages:Mar 2 19:43:22 beta_web gconfd (sifagent-16786): Resolved address "xml:readwrite:/home/sifagent//.gconf" to a writable configuration source at position 1
[Code]...
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Oct 28, 2010
I have a java program where I want to run it every 30 seconds. So what is the best way to run in that form? Is it running as a service or a cron is best? How to do with it
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Apr 10, 2011
i am trying to daemonize my (java) program on ubuntu. For that end i created a script based on /etc/init.d/skeleton script which obviously uses start-stop-daemon.
But I cannot make the process (java program) run on the background. it keeps running in the same terminal i start my daemon script. Trying --background option for start-stop-daemon does not help.
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Apr 12, 2010
I Bought A New Centos VPS,Not Much Details Are Provided About Setup Etc..I Wanted To Check If FTP Service Is Running Or Not And Which FTP Daemon Is Running.(Is There Any FTP Daemon Pre-Installed With Centos)
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Jan 18, 2010
Still trying to get my openVPN running.I can get the daemon running from terminal but nothing is configured. I copied my config file over from Windoze partition. My openVPN works flawlessly on both my windoze boxes.
Following this but came to another dead end when Im instructed to: Next, edit /etc/openvpn/easy-rsa/vars adjusting the following to your environment:
export KEY_COUNTRY="US"
export KEY_PROVINCE="NC"
export KEY_CITY="Winston-Salem"
export KEY_ORG="Example Company"
export KEY_EMAIL="steve@example.com"
I cant edit that,I tried but its a 'read only'. Are these instructions designed for long time users?
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Feb 15, 2010
I am trying to use my Apple Remote Controller that came with my iMac 4.1. I did some research and on the Ubuntu site it said that its possible with a application called Infrared Remote Controller. It detected from the hardrive which version I had etc but than a error message appeared on the bottom saying:
Warning: Remote control daemon not running.
How can I activate this? I included a screenshot!
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May 10, 2010
I am working on a daemon that I want to change some variables while its running. Is this possible?I want to implement a command line type interface for my daemon so I can send it commands that will change the current values of specific variables, and also be able tell the daemon to load/save a config file.The only thing I have found so far is passing arguments to a daemon, but that seems to be a one-time shot when your first starting it.
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Mar 29, 2010
I have installed talk on centos, turned it on by editing xinetd.d/talk and setting disable=no.I have restarted xinetd (service xinetd restart) and verified that talk is configured to start (chkconfig --status-all).what am i missing? shouldn't either port 517 or 518 respond to telnet? what else can i do to get talk running?
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Mar 28, 2011
I was just curious if cron had to be enabled before use. i have a crontab, and the cron daemon is running, but the command isn't executing...
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Apr 5, 2011
I'm trying to modify an existing user so that any files they create can be at least read (although writing and execution would be nice) by any other user. The reason is because I need the daemon running my Apache server to be able to access files created by a daemon running under this user, files which will be created and accessed in real-time.
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Mar 24, 2011
I am tring to stop avahi from starting and running at all.I use kill PID and killall avahi-daemon and it will not go away, it comes back with a new PID. Does anyone know a way of stopping it?
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Nov 20, 2010
after some tweaking i managed to get nessus installed on my machine. However i'm running into an issue when trying to add a user.The nessus daemon is running on my machine, i've registered. I think everything is peachy in that regard, but when i run:
Code:
zachadmin@ubuntu:~$ sudo /etc/init.d/nessusd restart
$Shutting down Nessus : .
$Starting Nessus : .[code].....
Obviously the command not found is my error, from what i understand there isn't a default user placed in the first time.So essentially i have thie program installed, but i can't access it.
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Mar 7, 2010
I installed LAMPP a couple of weeks ago and was working fine. Today when I try to start lampp, it will only start MySql and ProFTPD. It says "XAMPP: Another web server daemon is already running." How can I find out where this other server is located and stop it?
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Feb 12, 2010
I just did an upgrade from 8.04 to 9.04 and i'm loving it. I just need to get Java working so I can use ..... and stuff like that. I installed OpenJDK and the plugin but I can't figure out how to get it to work in Google Chrome or even Firefox.
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Jun 20, 2010
I would like some help to run sql queries in Ubuntu. For a school IT project, we must write a Java program that runs queries. Seeing that I'm going away on holiday and will be away from my Win7 desktop, I will have to work on my Ubuntu laptop. When I run my program, I get these two sql exceptions:
Code:
sun.jdbc.odbc.JdbcOdbcDriver
No suitable driver found for jdbc:odbc:ITPAT2010
Note: it is not my program that is causing the problem, since it works fine on Win7. But here's my code anyway:
Code:
void OpenDB()
{
System.out.println("INTO BRIDGE");
String url = "jdbc:odbc:ITPAT2010"; //JOU BRUG SE NAAM
[code]....
I believe the drivers that handles the connection to the database aren't installed. The format of my database is: *.accdb (was created on Win7 using Office 2010). I can't open this file, probably because I have no database programs installed?
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Nov 16, 2010
I need to run 32 bit java on my 64 bit PC. I don't want to make the 32 bit java my default. Can I do it??
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May 13, 2011
I am the new user of linux and installing eclipse IDE in the ubuntu server10.10. I have followed the steps given in the links [URL] and [URL]. After installing sun-java6-bin, sun-java6-jre and sun-java6-jdk, java is not running in my ubuntu server10.10. and got error like this
$ java -version
Error: could not open '/usr/lib/jvm/java-6-sun-1.6.0.21/jre/lib/i386/jvm.cfg'
$ javac -version
Error: could not open '/usr/lib/jvm/java-6-sun-1.6.0.21/jre/lib/i386/jvm.cfg'
$ javac HelloWorld.java
Error: could not open '/usr/lib/jvm/java-6-sun-1.6.0.21/jre/lib/i386/jvm.cfg'
$ java HelloWorld
Error: could not open '/usr/lib/jvm/java-6-sun-1.6.0.21/jre/lib/i386/jvm.cfg'
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Sep 2, 2009
i have ubuntu 6.06, my internet connection is going fine but when i click on any image link,image is not displayed on my screen
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Aug 17, 2010
i want to use java as tool in which i give an input,and on the basis of this input my specific script run. for example.... if we talk about web server.. in my java page..i have to just type my web page name...say [URL] and then enter the text...say "hi how are you"
then my script will run... in the script it itself start the service,then edit the configuration file in /etc/httpd/conf/httpd.conf
and make changes according to my input in java page... i know the scripting but i dont know how java command will execute my script...
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Oct 12, 2010
Our school is setting up a Linux computer lab for students to use. We have Kinetic Books and would like to run it on these computers. The software is java-based. Is it possible to run it under Wine? Are there any general rules-of-thumb for which programs are Wine-compatible?
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Mar 28, 2011
I have this problem that whenever java is running (eg. Runescape), sound works only in the Java window, and I don't get sound from flash, mp3s or anywhere else.I found several similar threads but most of them were unsolved, and the few solutions didn't work.Note: Earlier, I used to use IcedTea browser plugin for java, which didn't seem to give any sound problems, though was a bit glitchy otherwise. This problem started only after switching to the Java plugin found
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May 13, 2011
I am the new user of linux and installing eclipse IDE in the ubuntu server10.10. I have followed the steps given in the links http://www.cyberciti.biz/faq/howto-u...igure-jdk-jre/ andttp://eclipse.dzone.com/articles/ho...-33-ubuntu-710. After installing sun-java6-bin, sun-java6-jre and sun-java6-jdk, java is not running in my ubuntu server10.10. and got error like this
$ java -version
Error: could not open '/usr/lib/jvm/java-6-sun-1.6.0.21/jre/lib/i386/jvm.cfg'
$ javac -version
[code].....
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Jun 13, 2011
I'm having some trouble with Java based games. I am running 11.04 64x and I downloaded and installed the latest sun-jvm. I know my hardware can run these two games very well (Minecraft and Spiral Knights). I'm wondering if maybe sun isn't my default plugin.
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Feb 26, 2011
i've some trouble to write a script on java on linux to check if service(ie:smbd) is runing or not,, could you give me some example? Or if is there any source about it for me to learn? i've two days search with zero result...
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Mar 13, 2011
Kernel version: 2.6.26-2-686
Java version: 1.6.0_0
I'm going to run a full system update, but I doubt that'll work.
What happens is I turn the computer on, log in, start the application with:
java -Xmx1024M -Xms1024M -jar minecraft_server.jar nogui
and it will work fine for a while, but then, while we're playing, it'll become unresponsive and crash. I then go over to the physical computer, wake the monitor up by pressing the down arrow, delete the "[[B" that appears, and try to issue the applications stop command to save and close the application. This doesn't work. The computer registers what I type and registers the return, but nothing happens. I switch over to my second console, log in, find the PID of java, and attempt to kill the java process as root. It accepts the command and gives me another line of prompt, but when I switch back to the first console, nothing has happened.
I then switch back and try to issue a shutdown for right now, and it'll get to "Sending processes the SIGTERM signal", and then it waits for them to be killed, but will not progress further than that. I then have to either force the shutdown with the 3-second hold for the power button, or I have to turn off the power bar it's attached to.
Also, if I'm at the prompt and press backspace, which gives me a system beep, it doesn't stop. Instead of one, short beep, I get a never-ending tone, as opposed to the beep.
The computer does run a little hot; It's in a closet and it's kind of crammed, but it's never so hot that you can't handle the computer.
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Aug 18, 2010
how can i run a bash script script by using java in rhel5... then please reply....i have vary good project in my mind.....
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Feb 20, 2011
I am facing problem of trying to access parameters to be given to shell script within a java prg.
I have following code to run the process within java but the parameter is not recognized within $ or without it also.
Code:
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