The Internals of Spark Structured Streaming

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The Internals of Spark Structured Streaming

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- Spark Structured Streaming and Streaming Queries
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    StateStoreHandler
    
    KeyToNumValuesStore
    
    KeyWithIndexToValueStore
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    StreamingSymmetricHashJoinHelper
    
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  - KeyValueGroupedDataset
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    mapGroupsWithState Operator
    
    flatMapGroupsWithState Operator
  - GroupState
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    StateManagerImplBase
    
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  - MetadataLog
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    OffsetSeqLog
    
    OffsetSeq
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    CheckpointFileManager
    
    FileContextBasedCheckpointFileManager
    
    FileSystemBasedCheckpointFileManager
    
    Offset
    
    StreamProgress
- Micro-Batch Execution
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  - EpochCoordinator
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    EpochCoordinator RPC Endpoint
    
    EpochCoordinatorRef
    
    EpochTracker
  - ContinuousQueuedDataReader
    ContinuousQueuedDataReader
    
    ContinuousQueuedDataReader
    
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- Text Socket
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- Rate
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- Console Sink
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- Foreach Sink
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- Memory
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    MemorySinkV2
    
    MemoryStreamWriter
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Monitoring
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RateStreamMicroBatchReader

== [[RateStreamMicroBatchReader]] RateStreamMicroBatchReader

RateStreamMicroBatchReader is...FIXME

Last update: 2020-09-09

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