Problem with running Locust with distributed mode.

[bikra...@gmail.com]

Hi Experts,

We are trying to run Locust with distributed mode. Can you please help to resolve the issue.

My Yml file :

execution:
- distributed:
  - ip1
  executor: locust
  concurrency: 1
  ramp-up: 20s
  iterations: 10
  scenario: loadTest
  master: True
  slaves: 4

scenarios:
  loadTest:
  default-address: http://localhost:8080
  script: locust_distributed.py


I am getting below error:
Taurus CLI Tool v1.9.5

21:36:36 INFO: Preparing...
21:36:36 ERROR: TypeError: argument of type 'NoneType' is not iterable
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/bzt/cli.py", line 220, in perform
    self.engine.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 157, in prepare
    self.__prepare_provisioning()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 490, in __prepare_provisioning
    self.provisioning.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/provisioning.py", line 70, in prepare
    executor.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/locustio.py", line 55, in prepare
    self.__setup_script()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/locustio.py", line 155, in __setup_script
    self.script = self.get_script_path()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 894, in get_script_path
    if Scenario.SCRIPT in scenario and scenario[Scenario.SCRIPT]:
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py", line 104, in __contains__
    return key in self.data
TypeError: argument of type 'NoneType' is not iterable


bzt.log

[2017-09-05 21:36:36,040 INFO Engine] Preparing...
[2017-09-05 21:36:36,041 DEBUG Engine] Module config: consolidator defaultdict(None, {'class': 'bzt.modules.aggregator.ConsolidatingAggregator'})
[2017-09-05 21:36:36,041 DEBUG root] Importing module: bzt.modules.aggregator
[2017-09-05 21:36:36,043 DEBUG root] Loading class: 'ConsolidatingAggregator' from <module 'bzt.modules.aggregator' from '/usr/local/lib/python2.7/site-packages/bzt/modules/aggregator.pyc'>
[2017-09-05 21:36:36,043 DEBUG Engine.consolidator] Exception in dehumanize_time(inf)
[2017-09-05 21:36:36,043 DEBUG Engine.consolidator] Buffer scaling setup: percentile 95.0 from [0.0, 50.0, 90.0, 95.0, 99.0, 99.9, 100.0] selected
[2017-09-05 21:36:36,043 DEBUG Engine] Module config: monitoring defaultdict(None, {'class': 'bzt.modules.monitoring.Monitoring'})
[2017-09-05 21:36:36,043 DEBUG root] Importing module: bzt.modules.monitoring
[2017-09-05 21:36:36,076 DEBUG root] Loading class: 'Monitoring' from <module 'bzt.modules.monitoring' from '/usr/local/lib/python2.7/site-packages/bzt/modules/monitoring.pyc'>
[2017-09-05 21:36:36,076 DEBUG Engine] Module config: local defaultdict(None, {'class': 'bzt.modules.provisioning.Local'})
[2017-09-05 21:36:36,076 DEBUG root] Importing module: bzt.modules.provisioning
[2017-09-05 21:36:36,076 DEBUG root] Loading class: 'Local' from <module 'bzt.modules.provisioning' from '/usr/local/lib/python2.7/site-packages/bzt/modules/provisioning.pyc'>
[2017-09-05 21:36:36,077 DEBUG Engine] Module config: locust defaultdict(None, {'class': 'bzt.modules.locustio.LocustIOExecutor'})
[2017-09-05 21:36:36,077 DEBUG root] Importing module: bzt.modules.locustio
[2017-09-05 21:36:36,086 DEBUG root] Loading class: 'LocustIOExecutor' from <module 'bzt.modules.locustio' from '/usr/local/lib/python2.7/site-packages/bzt/modules/locustio.pyc'>
[2017-09-05 21:36:36,086 DEBUG Engine.local] Preparing executor: locust/4452036688
[2017-09-05 21:36:36,088 ERROR root] TypeError: argument of type 'NoneType' is not iterable
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/bzt/cli.py", line 220, in perform
    self.engine.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 157, in prepare
    self.__prepare_provisioning()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 490, in __prepare_provisioning
    self.provisioning.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/provisioning.py", line 70, in prepare
    executor.prepare()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/locustio.py", line 55, in prepare
    self.__setup_script()
  File "/usr/local/lib/python2.7/site-packages/bzt/modules/locustio.py", line 155, in __setup_script
    self.script = self.get_script_path()
  File "/usr/local/lib/python2.7/site-packages/bzt/engine.py", line 894, in get_script_path
    if Scenario.SCRIPT in scenario and scenario[Scenario.SCRIPT]:
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py", line 104, in __contains__
    return key in self.data
TypeError: argument of type 'NoneType' is not iterable
[2017-09-05 21:36:36,088 INFO Engine] Post-processing...
[2017-09-05 21:36:36,088 DEBUG Engine.consolidator] Consolidator buffer[0]: []

[Andrey Pokhilko]

Hi,

I see that under your scenario name "loadTest" you did not indent default-address and script to form child items. Most likely it's the issue.

Try adding couple of spaces to those lines.

--

Andrey

On 09/05/2017 12:11 PM, bikra...@gmail.com wrote:

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[Bikram Vikash]

Thanks Andy,

That problem got resolved .

We are encountering with new error .

locust.out

Usage: locust [options] [LocustClass [LocustClass2 ... ]]

locustio-taurus-wrapper.py: error: no such option: --expect-slaves

bzt.log

[2017-09-06 12:05:58,626 DEBUG Engine.local] Post-process locust/loadTest
[2017-09-06 12:05:58,627 DEBUG Engine.local] Exception in post_process of LocustIOExecutor: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/bzt/modules/provisioning.py", line 165, in post_process
    raise ToolError(message, diagnostics)
ToolError: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result

[2017-09-06 12:05:58,627 DEBUG Engine] post_process: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/bzt/engine.py", line 265, in post_process
    module.post_process()
  File "/usr/local/lib/python2.7/dist-packages/bzt/modules/provisioning.py", line 172, in post_process
    reraise(exc_info)
  File "/usr/local/lib/python2.7/dist-packages/bzt/modules/provisioning.py", line 165, in post_process
    raise ToolError(message, diagnostics)
ToolError: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result

[2017-09-06 12:05:58,627 DEBUG Engine.consolidator] Consolidator buffer[0]: []
[2017-09-06 12:05:58,627 INFO Engine.final-stats] Test duration: 0:00:01
[2017-09-06 12:05:58,627 DEBUG Engine.console] No logger_handler or orig_stream was detected
[2017-09-06 12:05:58,629 DEBUG Engine.Configuration] Dumping YAML config into /var/jenkins_home/workspace/Locust_distributed/result/effective.yml
[2017-09-06 12:05:58,656 DEBUG Engine.Configuration] Dumping JSON config into /var/jenkins_home/workspace/Locust_distributed/result/effective.json
[2017-09-06 12:05:58,657 ERROR root] Child Process Error: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result
[2017-09-06 12:05:58,658 ERROR root] Locust STDOUT:
Usage: locust [options] [LocustClass [LocustClass2 ... ]]

locustio-taurus-wrapper.py: error: no such option: --expect-slaves
[2017-09-06 12:05:58,658 DEBUG root] ToolError: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/bzt/cli.py", line 228, in perform
    self.engine.post_process()
  File "/usr/local/lib/python2.7/dist-packages/bzt/engine.py", line 278, in post_process
    reraise(exc_info)
  File "/usr/local/lib/python2.7/dist-packages/bzt/engine.py", line 265, in post_process
    module.post_process()
  File "/usr/local/lib/python2.7/dist-packages/bzt/modules/provisioning.py", line 172, in post_process
    reraise(exc_info)
  File "/usr/local/lib/python2.7/dist-packages/bzt/modules/provisioning.py", line 165, in post_process
    raise ToolError(message, diagnostics)
ToolError: Empty results, most likely loadTest (LocustIOExecutor) failed. Actual reason for this can be found in logs under /var/jenkins_home/workspace/Locust_distributed/result

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[Andrey Pokhilko]

This means you are using older version of Locust, which has no support for that feature. You'd need fresher version.

And btw, I'm not Andy.

--

Andrey