[jboss-jira] [JBoss JIRA] Created: (JBAS-6604) Use FD_ALL in UDP stacks

Tue Mar 10 11:24:22 EDT 2009

Use FD_ALL in UDP stacks
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                 Key: JBAS-6604
                 URL: https://jira.jboss.org/jira/browse/JBAS-6604
             Project: JBoss Application Server
          Issue Type: Task
      Security Level: Public (Everyone can see)
          Components: Clustering
            Reporter: Brian Stansberry
            Assignee: Brian Stansberry
             Fix For: JBossAS-5.1.0.CR1

Per Bela, UDP based stacks should use FD_ALL instead of FD.  TCP based stacks should not.

FD_ALL works better in cases where X > 1 nodes fail; with FD it will take X * the failure timeout to suspect the Xth node. E.g. 3 nodes C, D, E fail, 30 sec failure timeout, it will be 90 secs before the failure of E is discovered.

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