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  1. Ignite
  2. IGNITE-10047

MVCC: Wrong coordinator assignment when two oldest nodes fail.

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.8
    • mvcc
    • None

    Description

      Reproducer: CacheContinuousQueryFailoverMvccTxSelfTest#testLeftPrimaryAndBackupNodes. This test can sporadically hangs when topology is unstable.
      The problem here is when two oldest nodes A and B failed, other nodes elect B node as a new coordinator despite it is down. This happens because the new mvcc coordinator is assigned in GridDhtPartitionsExchangeFuture#init method which is called only ones in case of multiple nodes fail simultaneously.

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              rkondakov Roman Kondakov
              rkondakov Roman Kondakov
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                Updated:
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