How to run Locust in distributed mode

[oat...@gmail.com]

Hi. Recently read in a topic that now is possible to run Locust by Taurus in distributed mode. Not found about that in docs, guess that it is like jmeter config

execution:
- distributed:
 - ip1
 - ip2
- executor: locust
 concurrency: 1
 ramp-up: 20s
 iterations: 10
 scenario: example
 master: True
 slaves: 1

scenarios:
 example:
 default-address: http://example.com
 script: sample.py

But get 
ERROR: Config Error: Scenario is not found in execution: defaultdict(None, {'distributed': ['ip1', 'ip2'], 'executor': 'jmeter'})

I have installed Taurus CLI Tool v1.9.2

How to run it correctly?

[ta...@blazemeter.com]

Hello.

You have to fix scenarios part.

(hint: look at indentations of 'example' and 'default-address'. they must be different)

More than, you have other indentation mistakes about in your script. Please revise hierarchy carefully. 

[Andrey Pokhilko]

The right config would be like below. But "distributed" option does nothing - Taurus is unable to start locust slaves. You have to start the slaves manually. Or you can also look at cloud provisioned exectution in Taurus.

execution:
- distributed:
  - ip1
  - ip2

  executor: locust
  concurrency: 1
  ramp-up: 20s
  iterations: 10
  scenario: example
  master: True
  slaves: 1

scenarios:
  example:
  default-address: http://example.com
  script: sample.py

Andrey Pohilko Chief Scientist P: +7 (909) 631-21-69

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[oat...@gmail.com]

Clear, thanks. Did it.

I test it just locally, in 1 master and 2 slaves docker containers. Now I have an error at launch bzt

Child Process Error: Empty results, most likely example (LocustIOExecutor) failed.

and the locust.log

[2017-06-01 15:00:39,631] f810e3c012e8/ERROR/stderr: Traceback (most recent call last):
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: File "/usr/local/lib/python2.7/site-packages/bzt/resources/locustio-taurus-wrapper.py", line 97, in <module>
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: 
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: locust_starter.execute()
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: File "/usr/local/lib/python2.7/site-packages/bzt/resources/locustio-taurus-wrapper.py", line 91, in execute
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: 
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: main.main()
[2017-06-01 15:00:39,632] f810e3c012e8/ERROR/stderr: File "/usr/local/lib/python2.7/site-packages/locust/main.py", line 426, in main
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: 
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: runners.locust_runner = MasterLocustRunner(locust_classes, options)
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: File "/usr/local/lib/python2.7/site-packages/locust/runners.py", line 247, in __init__
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: 
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: self.server = rpc.Server(self.master_bind_host, self.master_bind_port)
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: File "/usr/local/lib/python2.7/site-packages/locust/rpc/zmqrpc.py", line 18, in __init__
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: 
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: self.receiver.bind("tcp://%s:%i" % (host, port))
[2017-06-01 15:00:39,633] f810e3c012e8/ERROR/stderr: File "zmq/backend/cython/socket.pyx", line 487, in zmq.backend.cython.socket.Socket.bind (zmq/backend/cython/socket.c:5156)
[2017-06-01 15:00:39,634] f810e3c012e8/ERROR/stderr: File "zmq/backend/cython/checkrc.pxd", line 25, in zmq.backend.cython.checkrc._check_rc (zmq/backend/cython/socket.c:7535)
[2017-06-01 15:00:39,634] f810e3c012e8/ERROR/stderr: zmq.error
[2017-06-01 15:00:39,634] f810e3c012e8/ERROR/stderr: .
[2017-06-01 15:00:39,634] f810e3c012e8/ERROR/stderr: ZMQError
[2017-06-01 15:00:39,635] f810e3c012e8/ERROR/stderr: :
[2017-06-01 15:00:39,635] f810e3c012e8/ERROR/stderr: Address already in use
[2017-06-01 15:00:39,635] f810e3c012e8/ERROR/stderr: 

Though manually locust launch via web-page works fine with same docker-compose file except --host option at slaves start.


четверг, 1 июня 2017 г., 15:25:16 UTC+5 пользователь Andrey Pokhilko написал: