Service Fabric状态服务因FailFast失败

我正在Azure群集中运行Service Fabric应用程序。该应用程序运行了好几天，没有任何问题。但是昨天我们注意到其中一项服务进入“错误”状态，此后一直未恢复。

该服务是一个可靠的有状态服务，具有1个分区和3个副本（即一个主副本，两个辅助副本）。该服务实现了一个长期运行的RunAsync（），并在RunAsync（）期间并发地从许多ReliableDictionary条目读取和写入。

我们在主节点上的事件日志中注意到以下错误：

Description: The application requested process termination through System.Environment.FailFast(string message).
Message: ProgressVectorEntry.Lsn == failureLsn
Stack:
   at System.Environment.FailFast(System.String)
   at Microsoft.ServiceFabric.Replicator.ProgressVector.FindSharedVector(Microsoft.ServiceFabric.Replicator.ProgressVector, Microsoft.ServiceFabric.Replicator.ProgressVector)
   at Microsoft.ServiceFabric.Replicator.ProgressVector.FindCopyModePrivate(Microsoft.ServiceFabric.Replicator.CopyContextParameters, Microsoft.ServiceFabric.Replicator.CopyContextParameters, Int64)
   at Microsoft.ServiceFabric.Replicator.ProgressVector.FindCopyMode(Microsoft.ServiceFabric.Replicator.CopyContextParameters, Microsoft.ServiceFabric.Replicator.CopyContextParameters, Int64)
   at Microsoft.ServiceFabric.Replicator.LoggingReplicator.GetLogRecordsToCopy(Microsoft.ServiceFabric.Replicator.ProgressVector, System.Fabric.Epoch, Microsoft.ServiceFabric.Replicator.LogicalSequenceNumber, Microsoft.ServiceFabric.Replicator.LogicalSequenceNumber, Int64, Int64, Microsoft.ServiceFabric.Replicator.LogicalSequenceNumber ByRef, Microsoft.ServiceFabric.Replicator.LogicalSequenceNumber ByRef, Microsoft.ServiceFabric.Data.IAsyncEnumerator`1<Microsoft.ServiceFabric.Replicator.LogRecord> ByRef, Microsoft.ServiceFabric.Replicator.BeginCheckpointLogRecord ByRef)
   at Microsoft.ServiceFabric.Replicator.LoggingReplicatorCopyStream+<GetNextAsyncSafe>d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Start[[Microsoft.ServiceFabric.Replicator.LoggingReplicatorCopyStream+<GetNextAsyncSafe>d__3, Microsoft.ServiceFabric.Data.Impl, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<GetNextAsyncSafe>d__3 ByRef)
   at Microsoft.ServiceFabric.Replicator.LoggingReplicatorCopyStream.GetNextAsyncSafe(System.Threading.CancellationToken)
   at Microsoft.ServiceFabric.Replicator.LoggingReplicatorCopyStream.GetNextAsync(System.Threading.CancellationToken)
   at System.Fabric.StateProviderBroker+AsyncEnumerateOperationDataBroker.<BeginGetNext>b__8(System.Threading.CancellationToken)
   at System.Fabric.Interop.Utility.WrapNativeAsyncMethodImplementation(System.Func`2<System.Threading.CancellationToken,System.Threading.Tasks.Task>, IFabricAsyncOperationCallback, System.String, System.Fabric.Interop.InteropApi)
   at System.Fabric.StateProviderBroker+AsyncEnumerateOperationDataBroker.BeginGetNext(IFabricAsyncOperationCallback)

我们从未在本地开发环境中观察到这一点，到目前为止，我们仅在Azure群集中观察到了这一点。

1. 这里发生了什么事？它看起来像损坏的复制信息。
2. 我们的代码该怎么做才能导致此问题？