Bela Ban edited a comment on Bug JGRP-1451

If we have

  • A: A,C,B
  • B: A,C,B
  • C: A,C,B
  • D: B,A,C,D

, the A and B are identified as candidates for merge leaders. When sort(A,B) --> A, everything is fine, as A.merge() will trigger a merge, since A is a coordinator. However, if it happens to be B, B.merge() is a no-op, as B is not a coordinator.

This means, if B is supposed to be merge leader, B will never trigger a merge, and neither will A as A thinks B will lead the merge.

Suggested solution:

  • Identify only A as candidate for merge leader
  • B (and D) will only be participants
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