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// Explains Dead Letter Queue + bad event handling + blocking

// You set the amount of events(batchsize) + guarantees of concurrency per shard+ plus key only active in 1 shard at the time

Lambda Handle stream

Handle Record

Mapbox dynamodb replicator

Lambda Handle Stream

PageUp Restore / S3 versioning

Uses S3 versions to check up until certain point in time:

  • More of a replication script , not for backup
  • //Deduplicate updates to the same key
  • // http.globalAgent.maxSockets = 500;
  • // Max inflight request checking for dynamo
  • AWS DynamoDB Cross Region Replication using Lambda (Node.js) -

Python based Handling of Batches when writing:

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To Analyze

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