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https://issues.apache.org/jira/browse/STRATOS-1633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akila resolved STRATOS-1633.
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Resolution: Fixed
> Refactoring Mock IaaS to improve performance and concurrency issues
> -------------------------------------------------------------------
>
> Key: STRATOS-1633
> URL: https://issues.apache.org/jira/browse/STRATOS-1633
> Project: Stratos
> Issue Type: Improvement
> Components: Mock IaaS
> Affects Versions: 4.1.4
> Reporter: Akila
> Assignee: Akila
> Priority: Minor
> Fix For: 4.1.5
>
>
> Currently there are lot of Thread.sleep calls in mock iaas component which
> makes it slow and cause unexpected behavior due to concurrency issues. Also
> it has a significant performance overhead when running integration tests
> since mock iaas is being used for test cases. I've been working on improving
> this component by doing following changes;
> - Remove *all* Thread sleep calls in mock iaas
> - Introduce a method named 'initialize' to start event receivers and
> publishers. This is a synchronous call which grantees that receiver and
> publisher objects will be created successfully. If not it will throw an
> exception and startInstance() method call in CC will fail. Earlier this task
> was delegated to an executor service which made it difficult to check whether
> mock instance was created successfully.
> - Create topology receiver in mock instance and listen for member
> initialized and member started events. It will publish instance started and
> instance activated events based on topology events received rather than
> sleeping for some time interval before publishing.
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