[jboss-jira] [JBoss JIRA] (WFLY-4650) Improve concurrency of requests for the same session when using distributed web sessions

[Paul Ferraro (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-4650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Ferraro updated WFLY-4650:
-------------------------------
    Priority: Minor  (was: Major)


> Improve concurrency of requests for the same session when using distributed web sessions
> ----------------------------------------------------------------------------------------
>
>                 Key: WFLY-4650
>                 URL: https://issues.jboss.org/browse/WFLY-4650
>             Project: WildFly
>          Issue Type: Enhancement
>          Components: Clustering
>    Affects Versions: 9.0.0.CR1
>            Reporter: Paul Ferraro
>            Assignee: Paul Ferraro
>            Priority: Minor
>
> Many people are encountering lock timeouts when using the asynchronous servlet API in concert with distributed web sessions.
> Our default configuration (pessimistic, REPEATABLE_READ isolation) effectively serializes access to the session.
> Currently, we require locking on every request, since all requests involve updating the last access timestamp of the session.  We should relax this constraint, such that only session attribute modifications require locking.



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