Redis queues setup using Cron Job

Hari

rafaucau If you don't have full access on the server because you have shared hosting, for example, then you can still use Redis Queue.
What I did was to set up a cron for such a script:

#set -x

queue=`ps -aux | grep "flarum queue:work" | grep -v grep`
if [[ -z $queue ]]; then
while true :
	do
		[[ -z $queue ]] && { php flarum queue:work; }
	done
else
exit 0
fi

rafaucau

I've tried to update the same at the advanced corn job area but it is showing some error, I think we need to modify it for my need 😊 could you please help me? my forum is in the subdirectory

rafaucau

Hari Save this code as an sh file, e.g. queue-check.sh and set it as a cron target.

Based on the command you provided, it should be something like this:
* * * * * /ask/queue-check.sh >> /dev/null 2>&1

I just set it up in my hosting panel.

Hari

am i doing correctly? can i use the below line instead of what you have mentioend earlier

* * * * * cd /ask && php flarum queue:work >> /dev/null 2>&1

Hari

rafaucau /dev/null 2>&1

What does dev null do?

I was inspired this line from flarum schedule discussion

IanM * * * * * cd /path-to-your-project && php flarum schedule:run >> /dev/null 2>&1

Edit : I think I don't need to creat a extra file?

(sorry for to many questions just trying to understand)

Hari

rafaucau Instead of calling the Flarum queue command via cron, you need to call this file.

got it

rafaucau Save this code as an sh file, e.g. queue-check.sh and set it as a cron target.

Created

rafaucau I just set it up in my hosting panel.

ok, I have that option which type do I need to select? PHP, cURL, Wget?

edit : i have updated the command line

* * * * * cd /ask && php flarum schedule:run >> /dev/null 2>&1
* * * * * cd /ask/queue-check.sh >> /dev/null 2>&1

so setting up queue job is completed? 😍

edit: i have tried to monitor it but looks like it's not working. I had to manually run flarum queue to make it work

redis-cli -n 1 monitor
redis-cli monitor |grep '(db 1)'

rafaucau * * * * * /ask/queue-check.sh >> /dev/null 2>&1

we dont need to mention word CD in above line?

rafaucau

Hari Edit : I think I don't need to creat a extra file?

You need. This is the contents of that sh file:

#set -x

queue=`ps -aux | grep "flarum queue:work" | grep -v grep`
if [[ -z $queue ]]; then
while true :
	do
		[[ -z $queue ]] && { php flarum queue:work; }
	done
else
exit 0
fi

Instead of calling the Flarum queue command via cron, you need to call this file.

Hari What does dev null do?

https://unix.stackexchange.com/a/163359

luceos

That custom script will daemonize the queue worker, but it's a very rough method. Running multiple daemons for different communities on the same server won't work.

My suggested solution is to just fire the worker command to kill itself on success. Overlapping queue workers aren't an issue.

* * * * * cd /ask && php flarum queue:work --stop-when-empty

See https://discuss.flarum.org/d/28151 - note that the cron method works with redis too.
And where I suggested this solution with a redis queue: https://discuss.flarum.org/d/28338-email-confirm-not-send/15

The drawback here is that queue jobs might be dispatched after up to 60 seconds. But as a queue is supposed to queue up jobs, this shouldn't be too much of an issue in most scenarios with smaller communities.

Hari

luceos so sir i dont need the .sh file anymore.

i have updated the command line in corn job area, it not triggering. i have mentioned a user and waited for 5min but it still not sending the notification again i want to ssh and after entering php flarum queue:work it pushed the notifications.

did i configure corn correctly? do i need to restart the server once i configure corn?

luceos

Hari did i configure corn correctly? do i need to restart the server once i configure corn?

Looks okay, I don't think a restart is needed.

You can easily test whether it works by doing a password request. If the mail arrives (and you email configuration is correct) the queue works 🙂

Ffuser1

Hari edit the cron to point to the exact path to flarum. If php command is not globally available, put the full path to php too.

Eg.

 
* * * * * /pathTOphp/php /pathTOflarum/flarum queue:work --stop-when-empty

Replace pathTOphp to reflect your environment. Same with pathTOflarum

Hari

Ffuser1 thanks a lot, that helped

almost spent 3 weeks understanding this and the cloudways is so weird