|
|
Sponsored Content
Top Forums
Programming
How to monitor if a process is running
Post 10461 by nahaz on Wednesday 14th of November 2001 02:34:54 PM
11-14-2001
While this response doesn't really belong in the C Programming section, the best way that I can see to ensure that your process runs all the time would be to write some sort of wrapper shell script to run the program with. Here is how you could do it in perl:
<hr noshade>
#!/usr/bin/perl
use strict;
my $OLIBA_CMD = '/[path to oliba here]/oliba';
my $SLEEP_TIME = 5; # check to see if it is running every 5 seconds
while(1)
{
my @pid_array = `ps -ef | grep [o]liba`; # thanks Perderabo
my $pid_count = scalar(@pid_array);
if ($pid_count == 0)
{
# uh oh it isn't running
system "$OLIBA_CMD"; # run it
}
elsif ($pid_count > 1)
{
# There is more than one instance running?
# code to mail the admin or something in here
}
sleep $SLEEP_TIME;
}
<hr noshade>
Hope this helps.
<hr noshade>
#!/usr/bin/perl
use strict;
my $OLIBA_CMD = '/[path to oliba here]/oliba';
my $SLEEP_TIME = 5; # check to see if it is running every 5 seconds
while(1)
{
my @pid_array = `ps -ef | grep [o]liba`; # thanks Perderabo
my $pid_count = scalar(@pid_array);
if ($pid_count == 0)
{
# uh oh it isn't running
system "$OLIBA_CMD"; # run it
}
elsif ($pid_count > 1)
{
# There is more than one instance running?
# code to mail the admin or something in here
}
sleep $SLEEP_TIME;
}
<hr noshade>
Hope this helps.
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi all
I am running a script monitor using source command.
the shell script monitor is used to execute a pl/sql procedure.
when i do
source monitor
and then
ps -ef | grep <procedure name>
i do not get any info
but when i do
sh monitor
and then
ps -ef | grep <procedure name>
i... (8 Replies)
Discussion started by: infyanurag
8 Replies
2. Shell Programming and Scripting
Hello all,
I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted.
Thanks in advance
Regards,
pradeep kulkarni.
:mad: (13 Replies)
Discussion started by: pradeepmacha
13 Replies
3. UNIX for Advanced & Expert Users
hi,
I need to change the code such that it becomes configurable to send email or sms or both.
At the moment the code works like sending both email and sms for any alert now want to change it to send email/sms as per my demand.
1. Like for a particular alert I only want email
2. If the alert... (2 Replies)
Discussion started by: madfox
2 Replies
4. Shell Programming and Scripting
Gurus,
I am writing a shell script that will be used to automate cold backup of an Oracle Database. The database size is around 300G and will take around 5-6 hours to copy.
I have finished the script till the copy of the datafiles. Now, I am stuck at the point where I need to monitor the... (4 Replies)
Discussion started by: sunpraveen
4 Replies
5. Shell Programming and Scripting
get email notification from from system when a process from XXXX user takes longer than 15 min run.Let me know the time estimation for the same.
hi ,any one please tell me , how to write a script to get email notification from system when a process from as mentioned above a xxxx user takes... (1 Reply)
Discussion started by: kirankrishna3
1 Replies
6. Shell Programming and Scripting
Hi,
I need to grep a pattern in the log file of a process and send a mail if pattern found.But I am not able to figure out how do I detect when the process comes UP,it is started several times a day and each time it is started I need to perform this action. Please suggest something. (3 Replies)
Discussion started by: vishal bhargava
3 Replies
7. BSD
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (0 Replies)
Discussion started by: naveeng
0 Replies
8. UNIX for Advanced & Expert Users
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (1 Reply)
Discussion started by: naveeng
1 Replies
9. UNIX for Advanced & Expert Users
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (6 Replies)
Discussion started by: naveeng
6 Replies
10. Shell Programming and Scripting
Team,
I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list.
How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT BSD
pidof
PIDOF(8) Linux System Administrator's Manual PIDOF(8) NAME
pidof -- find the process ID of a running program. SYNOPSIS
pidof [-s] [-c] [-n] [-x] [-o omitpid[,omitpid..]] [-o omitpid[,omitpid..]..] program [program..] DESCRIPTION
Pidof finds the process id's (pids) of the named programs. It prints those id's on the standard output. This program is on some systems used in run-level change scripts, especially when the system has a System-V like rc structure. In that case these scripts are located in /etc/rc?.d, where ? is the runlevel. If the system has a start-stop-daemon (8) program that should be used instead. OPTIONS
-s Single shot - this instructs the program to only return one pid. -c Only return process ids that are running with the same root directory. This option is ignored for non-root users, as they will be unable to check the current root directory of processes they do not own. -n Avoid stat(2) system function call on all binaries which are located on network based file systems like NFS. Instead of using this option the the variable PIDOF_NETFS may be set and exported. -x Scripts too - this causes the program to also return process id's of shells running the named scripts. -o omitpid Tells pidof to omit processes with that process id. The special pid %PPID can be used to name the parent process of the pidof pro- gram, in other words the calling shell or shell script. EXIT STATUS
0 At least one program was found with the requested name. 1 No program was found with the requested name. NOTES
pidof is actually the same program as killall5; the program behaves according to the name under which it is called. When pidof is invoked with a full pathname to the program it should find the pid of, it is reasonably safe. Otherwise it is possible that it returns pids of running programs that happen to have the same name as the program you're after but are actually other programs. Note that that the executable name of running processes is calculated with readlink(2), so symbolic links to executables will also match. SEE ALSO
shutdown(8), init(8), halt(8), reboot(8), killall5(8) AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl 01 Sep 1998 PIDOF(8)