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From "Ruwan Linton (JIRA)" <>
Subject [jira] Resolved: (SYNAPSE-537) Possibility to put server in maintenance mode and reload synapse configuration via JMX
Date Fri, 01 May 2009 16:57:30 GMT


Ruwan Linton resolved SYNAPSE-537.

    Resolution: Fixed

Committed the patch with small modifications

> Possibility to put server in maintenance mode and reload synapse configuration via JMX
> --------------------------------------------------------------------------------------
>                 Key: SYNAPSE-537
>                 URL:
>             Project: Synapse
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: NIGHTLY
>            Reporter: Eric Hubert
>            Assignee: Ruwan Linton
>             Fix For: 1.3
>         Attachments: ServerManager.patch
> Unfortunately I did not find the old issue we had for this, so I created a new one. The
provided patch extends the existing server states with a maintenance state. While entering
the maintenance mode all transports supporting a pause operation are paused. So no new requests
will be accepted. Once all requests in progress are finished the server can be safely restarted
to load a changed configuration. If running in a clustered environment behind  a loadbalancer
this allows dynamic configuration updates. 
> All server state changes can be triggered via JMX using an extended ServerManagerMBean
which can also be used to query the current server state.
> While working on this patch I thought about moving some of the classes in the synapse
top level package to a new server subpackage. I actually did not perform this change to ease
the review, but I still think it would be a good idea.
> So what about moving the following classes:
> Axis2SynapseController
> JmxAdapter
> ServerConfigurationInformation
> ServerConfigurationInformationFactory
> ServerContextInformation
> ServerManager
> ServerState
> ServerStateDetectionStrategy
> SynapseController
> SynapseControllerFactory
> SynapseServer
> to 
> synapse.server
> and
> ServerManagerView
> ServerManagerViewMBean
> to
> synapse.server.mbean (maybe also renaming them to ServerManagerControl and ServerManagerControlMBean.

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