As far as I can tell, the bash wait command waits for a logical "AND" of all the child processes.
Assuming I am coding in C:
(1) What is the function I would use to create multiple bash child process running perl?
(2) What is the function I would use to reinvent the bash wait command so I... (4 Replies)
Suppose that I am performing some operation on an sql database. Lets say process of Searching and then if a value is found, updating it... Now, when I have some millions of records on which the operation has to be performed... Does it help to spawn multiple processes each executing the same... (9 Replies)
Hi,
I am new this forum. I request you peoples help in understanding and finding some solution to my problem.
Here it goes:
I need to perform this set of actions by writing a shell script. I need to read a config file for the bunch of processes to execute.
I need to fecth the pid of... (4 Replies)
I'm trying to make a program that will spawn multiple child processes then exit. I'm having trouble figuring out how to do this since after I fork, the child process begins running the program again (never ending).
int main(void){
for(int i = 0; i < 3; i++){
fork();
}... (1 Reply)
I had issues with processes locking up. This script checks for processes and kills them if they are older than a certain time.
Its uses some functions you'll need to define or remove, like slog() which I use for logging, and is_running() which checks if this script is already running so you can... (0 Replies)
I've been working on some scripts in which I spawn some background processes. I'd like to be able to limit the number of processes, but have my script spawn additional processes as previous tasks finish. So, let's say I have 20 tasks to complete. Any given task could take from 1 to 10 minutes. ... (7 Replies)
Hi Experts,
I hav a question for you..
Can we open a new window(SunOS 5.10,Putty) by a unix_command from the one we're on? Is it possible?
Thanks. (2 Replies)
Hi
I need a unix script that can spawn 100 unix PIDs that each execute
the lgtst command as <Sid>adm within milliseconds.
Thanks in advance
Rgd
Ruud van Ruler (4 Replies)
:)Hi there, I am new to scripting and wanted to see if someone can show me how to grep on multiple processes and send the output to a file in /home/mydir/output.
I am aware of
ps -ef | grep on 1 process
but need help looking up multiple processes, can you use this command
ps -elf | grep |pid1... (4 Replies)
I am doing some file manipulation and then a bcp once all the files are processed. I need to do the following
for all files in dirctory
begin
-Step 1 use another shell/perl to format the file
done
in the end load into db using bcp
I want to do step 1 and step in a seperate... (2 Replies)
Discussion started by: tasmac
2 Replies
LEARN ABOUT DEBIAN
spawn-fcgi
spawn-fcgi(1) General Commands Manual spawn-fcgi(1)NAME
spawn-fcgi - Spawns FastCGI processes
SYNOPSIS
spawn-fcgi [options] [ -- <fcgiapp> [fcgi app arguments]]
spawn-fcgi -v
spawn-fcgi -h
DESCRIPTION
spawn-fcgi is used to spawn remote and local FastCGI processes.
While it is obviously needed to spawn remote FastCGI backends (the web server can only spawn local ones), it is recommended to spawn local
backends with spawn-fcgi, too.
Reasons why you may want to use spawn-fcgi instead of something else:
* Privilege separation without needing a suid-binary or running a server as root.
* You can restart your web server and the FastCGI applications without restarting the others.
* You can run them in different chroot()s.
* Running your FastCGI applications doesn't depend on the web server you are running, which allows for easier testing of other web
servers.
OPTIONS
spawn-fcgi accepts the following options:
-f <path>
Filename of the FastCGI application to spawn. This option is deprecated and it is recommend to always specify the application
(absolute path) and its parameters after "--"; the fcgiapp parameter is directly used for the exec() call, while for starting the
binary given with -f /bin/sh is needed (which may not be available in a chroot).
This option is ignored if fcgiapp is given.
-d <path>
Change the current directory before spawning the application.
-a <address>
IPv4/IPv6 address to bind to; only used if -p is given too. Defaults to "0.0.0.0" (IPv4).
-p <port>
TCP port to bind to; you cannot combine this with the -s option.
-s <path>
Path to the Unix domain socket to bind to; you cannot combine this with the -p option.
-C <children>
(PHP only) Number of children to spawn by setting the PHP_FCGI_CHILDREN environment variable. Default is not to overwrite the envi-
ronment variable; php will spawn no children if the variable is not set (same as setting it to 0).
-F <children>
Number of children to fork, defaults to 1. This option doesn't work with -n, have a look at multiwatch(1) if you want to supervise
multiple forks on the same socket.
-P <path>
Name of the PID file for spawned processes (ignored in no-fork mode)
-n No forking should take place (for daemontools)
-M <mode>
Change file mode of the Unix domain socket; only used if -s is given too.
-?, -h General usage instructions
-v Shows version information and exits
The following options are only available if you invoke spawn-fcgi as root:
-c <directory>
Chroot to specified directory; the Unix domain socket is created inside the chroot unless -S is given.
-S Create Unix domain socket before chroot().
-u User ID to change to.
-g Group ID to change to. Defaults to primary group of the user given for -u.
-U Change user of the Unix domain socket, defaults to the value of -u. (only used if -s is given)
-G Change group of the Unix domain socket, defaults to the primary group of the user given for -U; if -U wasn't given, defaults to the
value of -g. (only used if -s is given)
SEE ALSO svc(8), supervise(8), see http://cr.yp.to/daemontools.html
multiwatch(1), see http://cgit.stbuehler.de/gitosis/multiwatch/about/
26 March 2009 spawn-fcgi(1)