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  1. JGroups
  2. JGRP-1336

GMS: if a member leaving takes a long time, it can get merged back into the cluster

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Details

    • Bug
    • Resolution: Done
    • Minor
    • 3.0
    • None
    • None

    Description

      When JChannel.disconnect() is called, and the leave processing takes a long time (e.g. due to excessive CPU use and GC), then it can happen that the leaving node is merged back into the cluster.
      This occurred in the Infinispan testsuite which is run in parallel (high CPU contention).
      SOLUTION: after sending the LEAVE request, disable discovery, so MERGE2 won't discover us.

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          relates to

          Bug - A problem that impairs or prevents the functions of the product. ISPN-1386 Nodes stopping can be merged without a reduced view being installed

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) ISPN-1395 Remove TEST_PING workaround that avoids replying to MERGE ping when stopped

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

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