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https://issues.apache.org/jira/browse/BEAM-8256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Gajowy updated BEAM-8256:
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    Description: 
Autoscaling is a feature of google cloud dataflow runner that adds/removes 
worker nodes dynamically as the job runs. It can behave in a different way 
creating different test (runtime) results in consequent runs. In integration 
tests (such as IOIT but others also apply) we don't need such nondeterminism 
and it's best to have a fixed number of workers for every test execution. 

IOITs use autoscaling but they shouldn't. This issue was created to disable it 
and set a fixed number of workers.

Side note: autoscaling is already disabled in Nexmark and load tests of core 
operations. 

> Set fixed number of workers for File-based IOITs
> ------------------------------------------------
>
>                 Key: BEAM-8256
>                 URL: https://issues.apache.org/jira/browse/BEAM-8256
>             Project: Beam
>          Issue Type: Bug
>          Components: testing
>            Reporter: Michal Walenia
>            Assignee: Michal Walenia
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Autoscaling is a feature of google cloud dataflow runner that adds/removes 
> worker nodes dynamically as the job runs. It can behave in a different way 
> creating different test (runtime) results in consequent runs. In integration 
> tests (such as IOIT but others also apply) we don't need such nondeterminism 
> and it's best to have a fixed number of workers for every test execution. 
> IOITs use autoscaling but they shouldn't. This issue was created to disable 
> it and set a fixed number of workers.
> Side note: autoscaling is already disabled in Nexmark and load tests of core 
> operations. 



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