David Capwell created CASSANDRA-18341:
-----------------------------------------
Summary: Accord simulator fails with "available partitions are
empty!"
Key: CASSANDRA-18341
URL: https://issues.apache.org/jira/browse/CASSANDRA-18341
Project: Cassandra
Issue Type: Bug
Components: Accord, Test/fuzz
Reporter: David Capwell
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
{code}
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)
{code}
See
https://app.circleci.com/pipelines/github/dcapwell/cassandra/1947/workflows/05ee1183-36a0-41de-a798-e49b4e1ec413/jobs/19052
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