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  1. JBoss Enterprise Application Platform 4 and 5
  2. JBPAPP-9348 Upgrade ha-server-api to 1.2.1.Final
  3. JBPAPP-7904

HASingleton custom election policy isn't called with only one member

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    • Affects:
      Release Notes
    • Release Notes Text:
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      An issue that prevented a custom HASingleton election policy from being called if there was only one node in a cluster has been resolved in this release. The issue meant that a custom HASingleton election policy could not prevent a singleton from running at all in the cluster (such as a quorum policy). In this release, the custom HASingleton election policy is always called, meaning it can prevent a singleton from running at all in the cluster.
      Show
      An issue that prevented a custom HASingleton election policy from being called if there was only one node in a cluster has been resolved in this release. The issue meant that a custom HASingleton election policy could not prevent a singleton from running at all in the cluster (such as a quorum policy). In this release, the custom HASingleton election policy is always called, meaning it can prevent a singleton from running at all in the cluster.
    • Release Notes Docs Status:
      Documented as Resolved Issue
    • Docs QE Status:
      NEW

      Description

      A custom HASingleton election policy is not called when there is only one member in the cluster.

      org.jboss.ha.framework.server.HASingletonImpl.election()

      { List candidates = getElectionCandidates(); if ((candidates == null) || (candidates.isEmpty())) return null; return ((candidates.size() == 1) ? (ClusterNode)candidates.get(0) : this.electionPolicy.elect(candidates)); }

      The hard-coded check for size == 1 should be removed, and the custom policy should always be called.

      This bug prevents policies that do not start HASingletons if a quorum is not reached.

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            incorporates

            Bug - A problem which impairs or prevents the functions of the product. JBCLUSTER-297 HASingleton custom election policy isn't called with only one member

            • Major - A request that should be considered seriously but is not a show stopper.
            • Resolved
            is related to

            Bug - A problem which impairs or prevents the functions of the product. AS7-3295 SingletonService does not call election policy for single-node clusters

            • Major - A request that should be considered seriously but is not a show stopper.
            • Resolved

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                • Assignee:
                  dereed Dennis Reed
                  Reporter:
                  dereed Dennis Reed
                  Writer:
                  Scott Thomas
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                  • Created:
                    Updated:
                    Resolved: