[jboss-jira] [JBoss JIRA] Created: (JBAS-9088) Prevent concurrent conflicting write requests to the management model

[Brian Stansberry (JIRA)]

Prevent concurrent conflicting write requests to the management model
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                 Key: JBAS-9088
                 URL: https://issues.jboss.org/browse/JBAS-9088
             Project: JBoss Application Server
          Issue Type: Task
      Security Level: Public (Everyone can see)
          Components: Domain Management, EJB2
            Reporter: Brian Stansberry
             Fix For: 7.0.0.Beta3


The way the ModelControllers works makes it easy to support concurrent reads or reads occurring concurrently with writes. Reads get their own copy of the model; writes aren't reflected in the underlying model until the operation handler returns. But we need proper support for dealing with concurrent writes. Currently if two write execute concurrently, the "last one wins" i.e. its updated model gets written into the actual model, perhaps overwriting the changes made by earlier updates.

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