[jira] [Created] (STRATOS-454) Introducing Maintenance state to Topology

["Reka Thirunavukkarasu (JIRA)" <ji...@apache.org>]

Reka Thirunavukkarasu created STRATOS-454:
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             Summary: Introducing Maintenance state to Topology
                 Key: STRATOS-454
                 URL: https://issues.apache.org/jira/browse/STRATOS-454
             Project: Stratos
          Issue Type: Improvement
          Components: Cartridge Agent, Cloud Controller, Eventing
    Affects Versions: 4.0.0 M7
            Reporter: Reka Thirunavukkarasu
            Assignee: Reka Thirunavukkarasu
             Fix For: 4.0.0 Alpha


In the graceful shutdown,  we keep the member as active until it receives ReadyToShutdown event. In between these state changes, member will become unavailable. So the LB needs to aware of that, in order to avoid sending requests to a member which is going to graceful shutdown. I think that if we introduce another state say Maintenance in the Topology, before the actual shut down of the application inside the member takes place, then the LB will act upon the Maintenance state and  remove the member from the active members list.



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