10 More Discussions You Might Find Interesting
1. UNIX and Linux Applications
Hello.
I plan to use mysql with only instance database so I can stop one database for maintenance without stopping every thing.
When one reads through the my.cnf config file, it is not clear if we must use at the same time a single database mysql plus any instances mysqld2 (for app1), mysqld3... (1 Reply)
Discussion started by: jcdole
1 Replies
2. UNIX for Advanced & Expert Users
Hi,
I want to write one program in C in Unix OS which will check the running status of a process time to time. If the process is stopped somehow by any means, it will ensure that the process is restarted and only one copy of the process image should run in memory at any point of time for the user.... (2 Replies)
Discussion started by: sanzee007
2 Replies
3. Shell Programming and Scripting
I have run 10 instances of the process eg, process name is BG
nohup /WP01IRB1_irbapp/IRBWPROD/RB/bin/BG -c 1 -t 23 -a '-caTop TESTBILLCYCLE='5FEB13_81PT19NPT''>a.txt &
nohup /WP01IRB1_irbapp/IRBWPROD/RB/bin/BG -c 2 -t 23 -a '-caTop TESTBILLCYCLE='5FEB13_81PT19NPT''>b.txt &
nohup... (3 Replies)
Discussion started by: ankitknit
3 Replies
4. Shell Programming and Scripting
I need to install a tomcat6 with multiple instances like instance1,instance2 and instance3 in a server.
I came to know that for that we need to install tomcat6,apache2.0,mod_jk1.2 and jre with tools.jar installed.And we need to create multiple instances with same web.xml and difference... (0 Replies)
Discussion started by: tuxslonik
0 Replies
5. Shell Programming and Scripting
Hi all,I have some questions of forking new process,the code is below.Any help will be appreciated.
1 #! /bin/bash
2
3 PIDS=$(pidof sh $0)
4 P_array=( $PIDS )
5 echo $PIDS
6 let "instances = ${#P_array}-1"
7
8 echo "$instances instance(s)" of this script running."
9... (4 Replies)
Discussion started by: homeboy
4 Replies
6. Shell Programming and Scripting
I am trying to debug the following script. It appears that when the check for script running occurs, it's finding the actual grep statement and causing the script believe the script is already running. This is deployed on two different servers where one works fine, the other doesn't. Any ideas?
... (2 Replies)
Discussion started by: DaddyMoose
2 Replies
7. UNIX for Advanced & Expert Users
Hi Everyone,
I am using solaris 5.10.
I have a java process running in server mode in unix.
The problem is that it automatically forks i.e creates a child process.
I mean suddenly two instances of that process start running , in which the process-id of first instance is the parent... (5 Replies)
Discussion started by: glamo_2312
5 Replies
8. Shell Programming and Scripting
Hi,
I am executing the command: "./opmnctl status" to get the status of the processes in the instance. There are totally 5 processes that are avaialble, out of which 3 are "Alive" and 2 are "Down". How can I use the IF loop to get the status and echo it??
For instance I want to run a check... (8 Replies)
Discussion started by: yoursdavinder
8 Replies
9. Shell Programming and Scripting
Hi,
I am writing a shell script to invoke a C++ program. Before I start the C++ program (oi7loadbalancer), I am checking if the process is already running. I start the process only if it is not already running. I have the following check in my script.
proccount=`ps -f -u $USER_NAME | grep... (8 Replies)
Discussion started by: sim
8 Replies
10. Shell Programming and Scripting
Dear all.....
I am currently writing a Help-Desk / Knowledge Base application using PHP/PostGreSQL.
I authenticate the user using a quite elaborate mechanism of cookies. The problem is that using cookies (I also have a version using sessions with the same problem), I can only seem to get one... (4 Replies)
Discussion started by: zazzybob
4 Replies
SETSID(2) Linux Programmer's Manual SETSID(2)
NAME
setsid - creates a session and sets the process group ID
SYNOPSIS
#include <unistd.h>
pid_t setsid(void);
DESCRIPTION
setsid() creates a new session if the calling process is not a process group leader. The calling process is the leader of the new session,
the process group leader of the new process group, and has no controlling tty. The process group ID and session ID of the calling process
are set to the PID of the calling process. The calling process will be the only process in this new process group and in this new session.
RETURN VALUE
On success, the (new) session ID of the calling process is returned. On error, (pid_t) -1 is returned, and errno is set to indicate the
error.
ERRORS
EPERM The process group ID of any process equals the PID of the calling process. Thus, in particular, setsid() fails if the calling
process is already a process group leader.
CONFORMING TO
SVr4, POSIX.1-2001.
NOTES
A child created via fork(2) inherits its parent's session ID. The session ID is preserved across an execve(2).
A process group leader is a process with process group ID equal to its PID. In order to be sure that setsid() will succeed, fork(2) and
_exit(2), and have the child do setsid().
SEE ALSO
getsid(2), setpgid(2), setpgrp(2), tcgetsid(3), credentials(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2008-12-03 SETSID(2)
04-23-2009
Multiple instance of same process
Hi Everyone,