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AWS Kinesis Streaming

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AWS Kinesis ingests high-volume real-time data (IoT sensors, clickstreams, logs, transactions). Kinesis Data Streams buffers data; Kinesis Data Analytics processes it with SQL; Kinesis Firehose loads to S3/Redshift. Mastery means understanding shards (parallelism), consumer group semantics, windowing, state management. Learning path: streaming concepts (2 weeks) → Kinesis setup (2 weeks) → consumers + analytics (2 weeks) → production patterns (1 week).

Vad är AWS Kinesis Streaming

AWS Kinesis streams real-time data at scale. Kinesis Data Streams buffers incoming records (from IoT, clickstreams, logs, transactions), stored in shards (partitions) for a 24-hour window. Consumers (Lambda, EC2, Kinesis Analytics) process streams in real-time. Kinesis Firehose auto-loads aggregated data to S3, Redshift, or external endpoints. Use for: real-time dashboards, anomaly detection, recommendation engines, log processing, financial transactions.

🔧 VERKTYG & EKOSYSTEM
AWS Kinesis Data StreamsKinesis Data AnalyticsKinesis FirehoseAWS LambdaApache Kafka (comparison)FlinkCloudWatch MetricsDynamoDB (state store)S3 (sink)

💰 Lön per region

OmrådeNybörjareMidErfaren
USA$85k$140k$200k
UK£50k£85k£125k
EU€55k€92k€140k
CANADAC$90kC$150kC$210k

🎯 Karriärer som använder AWS Kinesis Streaming

Data Architect

❓ Vanliga frågor

Should I use Kinesis or Kafka?
Kinesis: AWS-native, managed, simpler. Kafka: open-source, more control, multi-cloud. Use Kinesis if AWS-only; Kafka if you want portability.
What's a shard in Kinesis?
Shard = partition = unit of parallelism. Each shard processes 1000 records/sec or 1MB/sec. Scale by adding shards. More shards = higher throughput + higher cost.
How do I scale Kinesis?
Auto-scaling: increase shard count when ingestion exceeds capacity. Kinesis auto-scales if enabled. Manual: increase shards explicitly.
What's the difference between Streams, Firehose, and Analytics?
Streams: buffering, multiple consumers. Firehose: simpler, auto-loads to S3/Redshift. Analytics: SQL processing on streams. Use together: Streams → Analytics → Firehose.
How do I handle late-arriving data?
Set allowed lateness window in Kinesis Analytics. Events arriving after window discarded. Tune window based on source reliability.
Can I guarantee exactly-once processing?
Kinesis provides at-least-once. Exactly-once requires idempotency in consumers (use DynamoDB for dedup). Hard problem, often at-least-once is acceptable.
Is Kinesis suitable for production?
Yes, millions of records/sec at Netflix, Uber, Airbnb. Caveats: sharding overhead for low-volume streams, costs scale with shards.

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