[CASSANDRA-18384] CEP-15 (Accord) ReadCoordinator fails with We were asked to read more, but found no shards in need of reading more

• Type: Bug
• Status: Open
• Priority: Normal
• Resolution: Unresolved
• Fix Version/s: 5.x
• Component/s: Accord
• Bug Category: Correctness - Unrecoverable Corruption / Loss
• Severity: Normal
• Complexity: Normal
• Discovered By: Fuzz Test
• Platform: All
• Assignee: Unassigned
• Reporter: David Capwell
• Created: 28/Mar/23 21:01
• Updated: 28/Mar/23 21:01

Description

java.lang.IllegalStateException: We were asked to read more, but found no shards in need of reading more
	at accord.utils.Invariants.illegalState(Invariants.java:44)
	at accord.utils.Invariants.checkState(Invariants.java:97)
	at accord.coordinate.tracking.ReadTracker.trySendMore(ReadTracker.java:257)
	at accord.coordinate.ReadCoordinator.trySendMore(ReadCoordinator.java:206)
	at accord.coordinate.tracking.AbstractTracker$ShardOutcomes.toRequestStatus(AbstractTracker.java:74)
	at accord.coordinate.tracking.AbstractTracker$ShardOutcomes.access$100(AbstractTracker.java:39)
	at accord.coordinate.tracking.AbstractTracker.recordResponse(AbstractTracker.java:137)
	at accord.coordinate.tracking.AbstractTracker.recordResponse(AbstractTracker.java:123)
	at accord.coordinate.tracking.ReadTracker.recordResponse(ReadTracker.java:235)
	at accord.coordinate.tracking.ReadTracker.recordQuorumReadSuccess(ReadTracker.java:221)
	at accord.coordinate.ReadCoordinator.onSuccess(ReadCoordinator.java:115)
	at accord.coordinate.ReadCoordinator.onSuccess(ReadCoordinator.java:36)
	at accord.messages.CallbackHolder.lambda$success$0(CallbackHolder.java:39)
	at accord.messages.CallbackHolder.lambda$safeCall$3(CallbackHolder.java:62)
	at org.apache.cassandra.service.accord.async.AsyncOperation$ForConsumer.apply(AsyncOperation.java:343)
	at org.apache.cassandra.service.accord.async.AsyncOperation$ForConsumer.apply(AsyncOperation.java:330)
	at org.apache.cassandra.service.accord.async.AsyncOperation.runInternal(AsyncOperation.java:226)
	at org.apache.cassandra.service.accord.async.AsyncOperation.run(AsyncOperation.java:268)

Issue Links

• blocks: CASSANDRA-18196 Initial Merge of Accord Feature Branch to Trunk