CODEWITHSUNDEEP
phpgearman
tambler
tambler

Reputation: 3039

Gearman (using PHP) - Possible to send job / message to ALL workers?

I'm new to Gearman, but I understand the general concepts. I realize that this isn't something that you would normally want to do... But I was wondering if there is a way to send a "job" to ALL workers?

I have a script that monitors my workers and respawns them when they die. I would like to be able to send out a job that says "die," when I want to kill / respawn all worker processes.

Is this possible? Thanks!

Upvotes: 1

Views: 1422

Answers (1)

thetaiko
thetaiko

Reputation: 7834

There are a couple of ways that you can go about this.

The easiest way is to send the "kill" job for every worker that you have. Once they've all been killed, then respawn them. The downside of this method is that you will have to wait until all your workers are dead before you can begin respawning. If you existing script respawns immediately, you'll run into problems here.

Another method is to register a unique task for each of your workers. If, for example, you have two workers, register a task "kill_001" for the first worker, and "kill_002" for the second worker. To kill your workers, determine the unique jobs to start ("kill_001", "kill_002"), and then send them out. Respawned workers should have new unique tasks, i.e. don't register a new job "kill_001" if it hasn't been killed yet. Although this method can require a bit more work, it will allow you to respawn your workers without downtime.

Upvotes: 1

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