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  1. Cassandra
  2. CASSANDRA-18341

Accord simulator fails with "available partitions are empty!"

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Details

    • Bug
    • Status: Open
    • Normal
    • Resolution: Unresolved
    • 5.x
    • Accord, Test/fuzz
    • None
    • Correctness - Test Failure
    • Normal
    • Normal
    • Unit Test
    • All
    • None

    Description

      With the change to allow accord to run with multiple partitions in simulator we can hit an edge case where all partitions are used in queries, so the current query isn’t able to find a partition to use, causing this error

      junit.framework.AssertionFailedError: available partitions are empty!
      	at org.apache.cassandra.simulator.paxos.AbstractPairOfSequencesPaxosSimulation.consume(AbstractPairOfSequencesPaxosSimulation.java:252)
      	at org.apache.cassandra.simulator.paxos.AbstractPairOfSequencesPaxosSimulation.access$000(AbstractPairOfSequencesPaxosSimulation.java:72)
      	at org.apache.cassandra.simulator.paxos.AbstractPairOfSequencesPaxosSimulation$2.get(AbstractPairOfSequencesPaxosSimulation.java:211)
      	at org.apache.cassandra.simulator.paxos.AbstractPairOfSequencesPaxosSimulation$2.get(AbstractPairOfSequencesPaxosSimulation.java:207)
      	at org.apache.cassandra.simulator.Actions.next(Actions.java:145)
      	at org.apache.cassandra.simulator.Actions.lambda$streamNextSupplier$3(Actions.java:154)
      	at org.apache.cassandra.simulator.Actions$LambdaAction.performSimple(Actions.java:63)
      	at org.apache.cassandra.simulator.Action.performAndRegister(Action.java:468)
      	at org.apache.cassandra.simulator.Action.perform(Action.java:486)
      	at org.apache.cassandra.simulator.ActionSchedule.next(ActionSchedule.java:378)
      	at org.apache.cassandra.simulator.paxos.PaxosSimulation$2.next(PaxosSimulation.java:255)
      	at org.apache.cassandra.simulator.paxos.PaxosSimulation.run(PaxosSimulation.java:227)
      	at org.apache.cassandra.simulator.paxos.AbstractPairOfSequencesPaxosSimulation.run(AbstractPairOfSequencesPaxosSimulation.java:295)
      	at org.apache.cassandra.simulator.paxos.PairOfSequencesAccordSimulation.run(PairOfSequencesAccordSimulation.java:62)
      	at org.apache.cassandra.simulator.SimulationRunner$Run.run(SimulationRunner.java:374)
      	at org.apache.cassandra.simulator.paxos.AccordSimulationRunner$Run.run(AccordSimulationRunner.java:39)
      	at org.apache.cassandra.simulator.paxos.AccordSimulationRunner$Run.run(AccordSimulationRunner.java:30)
      	at org.apache.cassandra.simulator.SimulationRunner$BasicCommand.run(SimulationRunner.java:355)
      	at org.apache.cassandra.simulator.paxos.AccordSimulationRunner.main(AccordSimulationRunner.java:76)
      	at org.apache.cassandra.simulator.test.ShortAccordSimulationTest.simulationTest(ShortAccordSimulationTest.java:32)
      

      See https://app.circleci.com/pipelines/github/dcapwell/cassandra/1947/workflows/05ee1183-36a0-41de-a798-e49b4e1ec413/jobs/19052

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              Unassigned Unassigned
              dcapwell David Capwell
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              Dates

                Created:
                Updated: