06-21-2011
Quote:
Originally Posted by
neutronscott
And this has to stay inside of a screen session because it's interactive, or just a way to view the output?
running your "exec" script in the background is not sufficient?
shell$ ./exec &
Then you want a crontab to make sure 'exec' is running?
The screen is interactive and the only way to view the output.
The exec script covers keeping the Java server running only if it doesn't consume all available memory and the OS doesn't kill all of the processes.
The exec script is executed in the screen to run, view, and interact with the server with ./exec .
When the machine the server is on is rebooted, I would like a script to cd to the server dir, start a screen with screen -S server1, then execute the exec script within the screen with ./exec . Then have the script check to make sure all of the processes are running. If not, restart them.
Sorry for not being able to explain everything very precise or easily.
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LEARN ABOUT CENTOS
dmxgetscreencount
DMXGetScreenCount(3) Library Functions Manual DMXGetScreenCount(3)
NAME
DMXGetScreenCount - determine number of back-end screens
SYNOPSIS
#include <X11/extensions/dmxext.h>
Bool DMXGetScreenCount(Display *dpy,
int *screen_count);
DESCRIPTION
DMXGetScreenCount() returns the number of back-end screens that a Xdmx(1) server controls. Since a DMX screen usually fills all of the
available area on a back-end server, there is usually a one-to-one correspondence between DMX screens and backend servers. However, it is
also possible for a DMX screen to cover only part of the available area on a back-end server, and for more than one DMX screens to occupy
different parts of the visible area on the same back-end server.
A DMX screen may be managed as a regular X screen in the Xdmx(1) server or may be joined with other DMX screens using Xinerama.
RETURN VALUE
DMXGetScreenCount() sets screen_count and returns True unless there is a protocol error.
NOTES
If Xinerama is active, only one logical screen will be available to clients of the Xdmx(1) server. However, this call will accurately
reflect the number of composite back-end screens that the Xdmx(1) server is using.
SEE ALSO
DMXGetScreenAttributes(3), DMXChangeScreensAttributes(3), DMX(3), Xdmx(1)
X Version 11 libdmx 1.1.3 DMXGetScreenCount(3)