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How can supervisord restart the npm start command successfully?


How can supervisord restart the npm start command successfully?

By : Aaron Oosterbaan
Date : October 17 2020, 01:08 AM
Hope this helps This worked for me: change npm start to node app.js inside the Supervisor config file.
Why?
code :
$ ps aux | grep node
ubuntu   19363  0.0  0.0   4508   708 ?        S    17:43   0:00 sh -c node index.js
ubuntu   19364  1.3  5.2 1041288 52996 ?       Sl   17:43   0:00 node index.js
$ sudo supervisorctl stop all
my_worker: stopped
$ ps aux | grep node
ubuntu   19364  0.3  5.2 1041288 52996 ?       Sl   17:43   0:00 node index.js


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Conditional restart of supervisord processes?

Conditional restart of supervisord processes?


By : Fresh User
Date : March 29 2020, 07:55 AM
hop of those help?
Is there a way for a process instance or process family to communicate with supervisord to say, the autoretsart behavior is no longer needed?
How to get supervisord to restart hung workers?

How to get supervisord to restart hung workers?


By : What-No
Date : March 29 2020, 07:55 AM
Does that help One possible solution would be to wrap your python script in a bash script that'd monitor it and exit if there isn't output to stdout for a period of time.
For example:
code :
#!/usr/bin/env bash
set -e

TIMEOUT=60
LAST_CHANGED="$(date +%s)"

{
    set -e
    while true; do
        sleep 1
        kill -USR1 $$
    done
} &

trap check_output USR1

check_output() {
    CURRENT="$(date +%s)"
    if [[ $((CURRENT - LAST_CHANGED)) -ge $TIMEOUT ]]; then
        echo "Process STDOUT hasn't printed in $TIMEOUT seconds"
        echo "Considering process hung and exiting"
        exit 1
    fi
}

STDOUT_PIPE=$(mktemp -u)
mkfifo $STDOUT_PIPE

trap cleanup EXIT
cleanup() {
    kill -- -$$ # Send TERM to child processes
    [[ -p $STDOUT_PIPE ]] && rm -f $STDOUT_PIPE
}

$@ >$STDOUT_PIPE || exit 2 &

while true; do
    if read tmp; then
        echo "$tmp"
        LAST_CHANGED="$(date +%s)"
    fi
done <$STDOUT_PIPE
uwsgi failed to start with supervisord, but work just fine in command line, why?

uwsgi failed to start with supervisord, but work just fine in command line, why?


By : saeed Patel
Date : March 29 2020, 07:55 AM
wish helps you experimented a couple of methods, found that is a matter of working directory of uWSGI. First, you should build uWSGI from source in the env where you will run the application later.
Activate the Env, then
code :
[uwsgi]  
master = true
processes = 1  
threads = 1  
chdir = /usr/local/anaconda3/envs/p3
wsgi-file = /usr/local/anaconda3/envs/p3/myApp.py   
callable = app   
http-socket = 0.0.0.0:5050       
virtualenv = /usr/local/anaconda3/envs/p3  
How to Restart Celery Wroker ran by Supervisord

How to Restart Celery Wroker ran by Supervisord


By : Светлана Филиппова
Date : October 14 2020, 09:38 AM
like below fixes the issue The main issue I run into is that long running tasks may get killed if you tell supervisor to killasgroup which would result in lost data.
The solution I've moved to using is to tell the mainprocess to TERM which will kill off the workers as they finish their tasks. supervisor will then restart the main process after all the workers finish.
code :
ps aux | grep celery.*MainProcess | awk '{print $2}' | xargs kill -TERM
How to restart supervisord program after some interval?

How to restart supervisord program after some interval?


By : Danny Mukendi
Date : March 29 2020, 07:55 AM
should help you out This is quite a rough around the edges solution (perhaps someone can tidy it up), but as supervisord has supervisorctl you can run this to restart all jobs after X hours (as a cronjob on the supervisord server)
For example:
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