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Full Discussion: Help scripting to start, check, and restart processes
Top Forums Shell Programming and Scripting Help scripting to start, check, and restart processes Post 302533367 by MacG32 on Thursday 23rd of June 2011 12:15:10 PM
Old 06-23-2011
In my case, the -r only produces 1 additional chkscreen and java-daemon.sh process, and only 1 Java server process. When I changed the -r to -S, it kept making chkscreen and java-daemon.sh processes and no additional Java server processes. That's why I was trying to get and use the PIDs, using the second script in the OP.

If Java uses all of the machine's memory, then the screen will be terminated. I'll no longer be attached to it, so the check for being or not being attached may not be the approach needed. I'll try and use what you've kindly given me and integrate something to get and check the PIDs.

No need to be sorry and lose sleep over this. It'll get worked out eventually and I'll post the final tweaked results then. Below is what I'm using. Thanks a million for all of your help neutronscott.

chkscr
Code:
#!/bin/sh
# chkscr: checks if a screen session is running.

SESSION="server1"
DAEMON="screen -d -m -S $SESSION /home/*server*/*local*/jd.sh"

# does the session exist?
screen -r $SESSION -ls -q 2>&1 >/dev/null

if [ $? -le 10 ]; then
        echo "Restarting $DAEMON"
        $DAEMON
fi

jd.sh
Code:
#!/bin/sh
# jd.sh: restarts a stopped server.

while true; do
java *server variables*
wait
done

 

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LEARN ABOUT DEBIAN

zemberek-server

zemberek-server(8)					      System Manager's Manual						zemberek-server(8)

NAME

       zemberek-server - Turkish spell-checker server

SYNOPSIS

       zemberek-server [CONFILE]

       or

       java -jar /usr/share/java/zemberek-server.jar [CONFILE]

DESCRIPTION

       zemberek-server is a Java(TM) based ``Turkish'' spell checker daemon which listens a configured port (by default, 10444) for client connec-
       tions and responds with the Turkish spell checked output in a server-client fashion.  zemberek-server uses Zemberek, a Java(TM) based Turk-
       ish NLP library, at its heart.

       Certain	parts of the servers' behaviour can be controlled in the CONFILE configuration file.  For example, to change the listened port one
       can use the SERVER_PORT setting in CONFILE.

OPTIONS

       There are no options.

NOTES

       To make use of the server, a client program is required (see the next section).

FILES

       /etc/zemberek-server.conf
	      configuration file

       /var/log/zemberek-server.log
	      server's log file when running in the background

SEE ALSO

       zpspell(1)

       the website for further information <https://zemberek.dev.java.net/>

AUTHOR

       Zemberek Team:

       Ahmet A. Akin <ahmetaa@gmail.com> and Mehmet D. Akin <mdakin@gmail.com>

       This manual page was written by Recai Oktas <roktas@debian.org> for the Debian GNU/Linux system, but may be used by others.

Debian/GNU Linux						   February 2006						zemberek-server(8)
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