Gearman is an application framework that distributes work across multiple machines. It consists of a central Gearman job server that accepts tasks from clients, distributes them to worker servers, and returns results back to clients. Gearman workers register the types of tasks they can handle and then wait for the Gearman job server to assign them tasks to execute. This allows for workload to be distributed across many workers, providing flexibility, speed, and no single point of failure.

2. What is Gearman?

3. German?

4. GEARMAN !=
GERMAN

5. GEARMAN
✤ Application Framework to distribute work
✤ System where server accepts tasks from clients, sends them to
workers, and dispatches results back
✤ It “does nothing” except telling workers what to do and getting “thank
you” from clients

6. MANAGE
R

7. MANAGE
R
GEARMA
N

8. Client Client Client
Gearman Job Server
(gearmand)
Worker Worker Worker

9. ✤ Open Source
✤ Multi-language
✤ Flexible
✤ Fast
✤ Embeddable
✤ No single point of failure

10. Gearman Client
<?php
$client= new GearmanClient();
$client->addServer();
print $client->do("reverse", "Apple pie");

11. Gearman Worker
#!/usr/bin/python
import gearman
def my_reverse(job):
return reverse(job.data)
gm_worker = gearman.GearmanWorker()
gm_worker.register_task('reverse', my_reverse)
while True:
gm_worker.work()

12. Reverse Reverse
“Apple pie” “Apple pie” Worker
Client Gearman
Job
Gearman Server Gearman
Client “eip elppA” “eip elppA” Worker
API API

13. Campaigns Queue
Campaigns To Contacts

14. Campaigns Queue Queue Daemon
Campaigns To Contacts

15. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server

16. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker

17. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker

18. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker
Messages Queue

19. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker
Client Client Client Client
Messages Queue Gearman Job Server

20. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker
Client Client Client Client
Messages Queue Gearman Job Server
Worker Worker Worker Worker Worker

21. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker
Client Client Client Client
Messages Queue Gearman Job Server
Worker Worker Worker Worker Worker

22. Campaigns Queue Queue Daemon
Gearman Client
Campaigns To Contacts Gearman Job Server
Worker Worker Worker Worker
Client Client Client Client
Messages Queue Gearman Job Server
Worker Worker Worker Worker Worker

23. Questions?