Streaming Data Processing

  1. Core Concepts in Stream Processing
    1. Time Semantics
      1. Event Time
        1. Time of Event Occurrence
          1. Event Time Extraction
            1. Time Zone Considerations
            2. Ingestion Time
              1. Data Source Timestamps
                1. System Clock Dependencies
                  1. Ingestion Latency Impact
                  2. Processing Time
                    1. System Processing Timestamps
                      1. Wall Clock Time
                        1. Processing Delays
                        2. Time Alignment and Synchronization
                          1. Clock Synchronization
                            1. Time Skew Handling
                              1. Temporal Consistency
                              2. Out-of-Order Event Handling
                                1. Late Arriving Data
                                  1. Event Reordering Strategies
                                    1. Buffering Mechanisms
                                    2. Watermarks
                                      1. Watermark Generation
                                        1. Watermark Propagation
                                          1. Watermark Alignment
                                          2. Late Data Processing
                                            1. Late Data Policies
                                              1. Side Output Handling
                                                1. Allowed Lateness Configuration
                                              2. State Management
                                                1. State Fundamentals
                                                  1. State Definition in Streaming
                                                    1. State Lifecycle Management
                                                      1. State Partitioning
                                                      2. Stateless vs Stateful Operations
                                                        1. Stateless Transformations
                                                          1. Stateful Computations
                                                            1. State Dependencies
                                                            2. State Distribution
                                                              1. Local State Management
                                                                1. Distributed State Coordination
                                                                  1. State Partitioning Strategies
                                                                  2. State Storage Backends
                                                                    1. In-memory State Stores
                                                                      1. Heap-based Storage
                                                                        1. Off-heap Storage
                                                                          1. Memory Management
                                                                          2. Persistent State Stores
                                                                            1. Disk-based Storage
                                                                              1. Database Integration
                                                                                1. Remote State Stores
                                                                              2. State Consistency and Recovery
                                                                                1. Checkpointing Mechanisms
                                                                                  1. Synchronous Checkpointing
                                                                                    1. Asynchronous Checkpointing
                                                                                      1. Incremental Checkpointing
                                                                                      2. State Recovery Procedures
                                                                                        1. Failure Recovery
                                                                                          1. State Restoration
                                                                                            1. Consistency Guarantees
                                                                                          2. State Scalability
                                                                                            1. State Size Management
                                                                                              1. State Compaction
                                                                                                1. State Migration
                                                                                              2. Windowing
                                                                                                1. Windowing Fundamentals
                                                                                                  1. Purpose of Windowing
                                                                                                    1. Window Semantics
                                                                                                      1. Window Lifecycle
                                                                                                      2. Window Types
                                                                                                        1. Tumbling Windows
                                                                                                          1. Fixed-size Windows
                                                                                                            1. Non-overlapping Intervals
                                                                                                              1. Alignment Strategies
                                                                                                              2. Sliding Windows
                                                                                                                1. Overlapping Windows
                                                                                                                  1. Slide Interval Configuration
                                                                                                                    1. Window Advance Mechanisms
                                                                                                                    2. Session Windows
                                                                                                                      1. Activity-based Grouping
                                                                                                                        1. Session Gap Configuration
                                                                                                                          1. Dynamic Window Sizing
                                                                                                                          2. Global Windows
                                                                                                                            1. Unbounded Window Scope
                                                                                                                              1. Custom Triggering
                                                                                                                                1. Manual Window Management
                                                                                                                              2. Window Assignment
                                                                                                                                1. Window Key Assignment
                                                                                                                                  1. Time-based Assignment
                                                                                                                                    1. Custom Assignment Logic
                                                                                                                                    2. Window Triggers
                                                                                                                                      1. Time-based Triggers
                                                                                                                                        1. Count-based Triggers
                                                                                                                                          1. Custom Trigger Logic
                                                                                                                                            1. Trigger Combinations
                                                                                                                                            2. Window Eviction
                                                                                                                                              1. Eviction Policies
                                                                                                                                                1. Memory Management
                                                                                                                                                  1. Data Retention Strategies
                                                                                                                                                  2. Late Data in Windows
                                                                                                                                                    1. Allowed Lateness
                                                                                                                                                      1. Late Data Integration
                                                                                                                                                        1. Window Result Updates

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                                                                                                                                                    1. Introduction to Streaming Data

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                                                                                                                                                    3. Streaming System Architecture