[15.0][ADD] queue_job_cron_jobrunner

[ivantodorovich]

This module implements a simple queue.job runner using ir.cron triggers.

It's meant to be used on environments where the regular job runner can't be run, like on Odoo.sh.

Unlike the regular job runner, where jobs are dispatched to the HttpWorkers, jobs are processed on the CronWorker threads by the job runner crons. This is a design decision because:

• Odoo.sh puts HttpWorkers to sleep when there's no network activity
• HttpWorkers are meant for traffic. Users shouldn't pay the price of background tasks.

For now, it only implements the most basic features of the queue_job runner, notably no channel capacity nor priorities.
Please check the ROADMAP for further details.

---

For the easiest case, no configuration is required besides installing the module.

To avoid CronWorker CPU timeout from abruptly stopping the job processing cron, it's recommended to launch Odoo with --limit-time-real-cron=0, to disable the CronWorker timeout altogether. (In Odoo.sh, this is done by default)

Parallel execution of jobs can be achieved by leveraging multiple ir.cron records:

• Make sure you have enough CronWorkers available (Odoo CLI --max-cron-threads)
• Duplicate the queue_job_cron cron record as many times as needed, until you have as much records as cron workers.

---

Related to:

• RFC: Jobrunner channels as cron jobs? #371 (@thomaspaulb this pretty much implements your suggestion)
• [Feature] Concurrent job runners #2

ping @simahawk @guewen

[simahawk]

LG and FTR we are testing it on odoo.sh these days ;)

[guewen]

Thank you!

[OCA-git-bot]

This PR has the approved label and has been created more than 5 days ago. It should therefore be ready to merge by a maintainer (or a PSC member if the concerned addon has no declared maintainer). 🤖

[simahawk]

@ivantodorovich wanna squash or we merge like this?

[ivantodorovich]

@simahawk done ;)

[simahawk]

/ocabot merge nobump

[OCA-git-bot]

This PR looks fantastic, let's merge it!
Prepared branch 15.0-ocabot-merge-pr-415-by-simahawk-bump-nobump, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at d6a5c13. Thanks a lot for contributing to OCA. ❤️

[StefanRijnhart]

For the record, this allows you to run jobs on the 'hybrid model of multiple threaded workers' of Odoo.sh as mentioned in #169, right?

[ivantodorovich]

That's right, by getting rid of the job runner. Instead it uses async ir.crons to process jobs

[chrisb-c01]

I've (tried to) create a backport from 15.0 to 14.0. As known, 14.0 does not feature the ir.cron.trigger model that 15.0 introduced. Instead I'm just setting the cron.nextcall attribute to the current datetime (link to code).

@ivantodorovich would be great if you could have a look at the PR. Thanks for the initial commit.

[guewen]

Hi @amigrave, this is the module we spoke about in Brussels :)