[jboss-jira] [JBoss JIRA] Commented: (JBAS-3594) Allow HAPartitionStateTransfer subscribers to get state after HAPartition start() is called.

[Brian Stansberry (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBAS-3594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12528957#action_12528957 ] 

Brian Stansberry commented on JBAS-3594:
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There is a simple, untested, version of this in AS trunk based on usage of the ha-server-api StateTransferProvider and GroupStateTransferService interfaces.

I think the interfaces should be enhanced to properly take advantage of STREAMING_STATE_TRANSFER. Something like, in StateTransferProvider add:

void getCurrentState(OutputStream os)

and in GroupStateTransferService:

Future<InputStream> getServiceStateAsStream(String serviceName)

Perhaps the latter should not return a Future, as we want the stream consumed.

> Allow HAPartitionStateTransfer subscribers to get state after HAPartition start() is called.
> --------------------------------------------------------------------------------------------
>
>                 Key: JBAS-3594
>                 URL: https://jira.jboss.org/jira/browse/JBAS-3594
>             Project: JBoss Application Server
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Clustering
>            Reporter: Brian Stansberry
>            Assignee: Brian Stansberry
>             Fix For: Unscheduled
>
>
> Use the JGroups partial state transfer API for this.
> Remove the need for dependent services to register as a subscriber before HAPartition.start() is called.  Having services interact with HAPartition before start() is contrary to the intended lifecycle semantics.

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