[jboss-jira] [JBoss JIRA] (WFLY-2534) Optimize task cancellation within BeanExpirationScheduler and SessionExpirationScheduler

[Paul Ferraro (JIRA)]

Paul Ferraro created WFLY-2534:
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             Summary: Optimize task cancellation within BeanExpirationScheduler and SessionExpirationScheduler
                 Key: WFLY-2534
                 URL: https://issues.jboss.org/browse/WFLY-2534
             Project: WildFly
          Issue Type: Enhancement
      Security Level: Public (Everyone can see)
          Components: Clustering
    Affects Versions: 8.0.0.Beta1
            Reporter: Paul Ferraro
            Assignee: Paul Ferraro
             Fix For: 8.0.0.CR1


These implementation uses a ScheduledThreadPoolExecutor to schedule expiration of beans/sessions, and rely heavily on task cancellation to reschedule expiration upon access.
Unfortunately, the remove method of the BlockingQueue used by ScheduledThreadPoolExecutor is an O(N) operation.

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