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https://issues.apache.org/jira/browse/CASSANDRA-18384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Capwell updated CASSANDRA-18384:
--------------------------------------
     Bug Category: Parent values: Correctness(12982)Level 1 values: 
Unrecoverable Corruption / Loss(13161)
       Complexity: Normal
    Discovered By: Fuzz Test
    Fix Version/s: 5.x
         Severity: Normal
           Status: Open  (was: Triage Needed)

> CEP-15 (Accord) ReadCoordinator fails with We were asked to read more, but 
> found no shards in need of reading more
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-18384
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18384
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Accord
>            Reporter: David Capwell
>            Priority: Normal
>             Fix For: 5.x
>
>
> {code}
> 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)
> {code}



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