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From "Nirmal Fernando (JIRA)" <>
Subject [jira] [Commented] (STRATOS-614) Scale down logic does not execute as intended
Date Wed, 16 Apr 2014 13:37:17 GMT


Nirmal Fernando commented on STRATOS-614:

AFAIS upon MemberTerminatedEvent it's getting removed (check

Best Regards,

Nirmal Fernando.
PPMC Member & Committer of Apache Stratos,
Senior Software Engineer, WSO2 Inc.


> Scale down logic does not execute as intended
> ---------------------------------------------
>                 Key: STRATOS-614
>                 URL:
>             Project: Stratos
>          Issue Type: Bug
>          Components: Autoscaler
>            Reporter: Imesh Gunaratne
> According to a flow test carried out on the latest code base, scale down functionality
does not work as intended.
> Scenario: 
> 1. Partition Max Instance Count set to 3
> 2. Send a sample request load to take scale up action. Autoscaler will spin up 3 instances.
> 3. Stop the sample request load.
> 4. Let the service cluster scale down.
> 5. One instance being terminated but two remains.
> As found in the Autoscaler logs Member Stat Context of the terminated member is not being
removed from the Cluster Context. As a result the same member being selected in each scale
down action round.

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