Daemons provides an easy way to wrap existing ruby scripts (for example a self-written server) to be run as a daemon and to be controlled by simple start/stop/restart commands.
Questions tagged [daemons]
105 questions
1
vote
2 answers
Shell script to rsync a file every week without cronjob (school assignement)
#!/bin/bash
z=1
b=$(date)
while [[ $z -eq 1 ]]
do
a=$(date)
if [ "$a" == "$b" ]
then
b=$(date -d "+7 days")
rsync -v -e ssh user@ip_address:~/sample.tgz…
kartik
- 55
- 4
1
vote
0 answers
Connection between group of daemons and main process - mkfifo
I was trying to connect daemons (group of daemons without a leader) with main process as in title, the problem is that i have to send statement from each daemon(which are supporting SIGUSR1 signal) to main process, but i don' t even know how to do…
Jorgusss
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- 1
- 3
1
vote
1 answer
Daemonizing a rake task in ruby. Best solution?
I have a rake task that polls an Amazon SQS queue indefinitely, which needs to be kept alive on a server. What would be the best solution for doing this? Any decent, maintained gems for daemonizing, that would be a good solution to this problem?
Any…
JK14
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- 2
1
vote
2 answers
Rufus-Scheduler, DaemonKit and traps
I daemonized a Ruby scheduler script (using Rufus) with Rufus-Scheduler DaemonKit and I'm trying to trap the TERM or INT signals to have the application try to save state before quitting.
DaemonKit has its own trap_state (private) method and it…
blackbird
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1
vote
0 answers
How to run two same kind of daemons on a single linux machine
In Ubuntu 14.04 or Debian Wheezy, Can I run two daemons of same type in a single machine?
I already tried to do that, by creating separate config files under /etc/init.d/ , /usr/bin/, Created separate symbolic links under /etc/rc[0-6].d/ for…
ganeshkaila
- 123
- 2
- 10
1
vote
2 answers
c++ Initialize global object AFTER fork
I have a program that uses a work queue to execute tasks, and is supposed to run as a daemon. I had been achieving this using the following code:
bool seedDaemon() {
using namespace std;
int childpid = 0;
pid_t pid = 0;
…
Oblivious12
- 61
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1
vote
0 answers
Python daemon status is unknown
I have created a python daemon by a Tutorial and it is running just as tutorial example has. But there are problems:
The output of service --status-all says:
[ ? ] testdaemon
Can anyone help me to find out what those errors and warnings are or…
Parisa
- 83
- 1
- 9
1
vote
1 answer
Ruby Daemons Gem
I installed the ruby gem Daemons. To make sure it was working I created a script that would print to a file every 5 seconds. I then created another file to run the script using the trivial example they give you in the readme located at…
tonywok
- 13
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1
vote
0 answers
How to call InetD on PORT and call PHP file
I want to listen a port using my PHP code. Can I use InetD to call my PHP file when some data comes on a particular port?
Abhimanyu Sharma
- 99
- 10
1
vote
0 answers
ruby 'daemonized' script presenting unexpected issues
I have here a script that has suddenly changed behavior and I can't work out why. As far as I know, no changes to the script have been made and neither have any changes to rubies or gems.
First of all, here is the script:
require 'rubygems'
require…
user1706938
- 131
- 1
- 9
1
vote
1 answer
Did I relaunch / reconfigure every launchctl daemon here?
I accidentally issue the following command:
launchctl load -w /System/Library/LaunchDaemons/
The output:
bind(): Address already in use
bind(): Address already in use
bind(): Address already in use
bind(): Address already in…
Marcel
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1
vote
1 answer
Streaming, Daemons, Cronjobs, how do you use them? (in Ruby)
I've finally had a second to look into streaming, daemons, and cron
tasks and all the neat gems built around them! But I'm not clear on
how/when to use these things.
I have a few questions:
1) If I wanted to have a website that stayed constantly…
Lance
- 75,200
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- 503
1
vote
1 answer
Abort trap from AppleScript run from a Ruby script
I have a Ruby program that, amongst other things, executes user-defined blocks of code (the code is on Github, here). Many of these blocks contain system commands, and I'm trying to debug a very specific case of executing a piece of AppleScript…
Jon Cairns
- 11,783
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1
vote
1 answer
Differing daemon implementations
I'm relatively new to python and I've only skimmed the surface of programming so far, which is why I'm confused about daemons. I generally know what they do, but I'm not sure what the best way to implement them is in python. I found this link which…
Lobabob
- 132
- 8
0
votes
3 answers
What's the best option for a framework-agnostic Ruby background worker library?
I'm building a simple recipe search engine with Ruby and Sinatra for an iPhone app, using RabbitMQ for my message queue. I'm looking around and finding a lot of different implementation choices for background processes, but most of them either…
Bob Aman
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