AWS Data Ingestion

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Questions and Answers

In the context of data ingestion, what is a primary factor to consider when deciding between batch and stream ingestion?

  • The cost of storage.
  • The number of team members available.
  • The programming language used.
  • Data volume and velocity. (correct)

Which of the following best describes a typical use case for batch ingestion?

  • Ingesting sales transaction data from multiple retail locations for overnight analysis. (correct)
  • Analyzing clickstream data from a website to provide product recommendations in real-time.
  • Processing real-time stock market data for immediate trading decisions.
  • Monitoring sensor data from IoT devices for immediate anomaly detection.

In stream processing, what role do producers play?

  • They store the data in a database.
  • They analyze the data in real-time.
  • They transform the data into a usable format.
  • They put records onto a stream. (correct)

Which feature is most characteristic of data streams?

<p>They are designed to handle high-velocity data and real-time processing. (A)</p> Signup and view all the answers

When building a batch processing pipeline, which of the following tasks is involved in the 'Transform/Load' stage?

<p>Identifying the source and target schemas. (D)</p> Signup and view all the answers

Which of the following is a key characteristic of a well-designed batch processing pipeline?

<p>It provides alerting on job failure. (D)</p> Signup and view all the answers

What role does workflow orchestration play in batch ingestion processing?

<p>It handles interdependencies between jobs and manages failures. (C)</p> Signup and view all the answers

Which of the following is a purpose-built AWS tool best suited for ingesting data from SaaS applications?

<p>Amazon AppFlow. (D)</p> Signup and view all the answers

If you need to ingest on-premises genome sequencing data to Amazon S3, which AWS service is most appropriate?

<p>AWS DataSync. (D)</p> Signup and view all the answers

What is the primary purpose of AWS Data Exchange?

<p>To integrate third-party datasets into your pipeline. (D)</p> Signup and view all the answers

What is one key benefit of using AWS Glue for batch ingestion tasks?

<p>Schema identification. (C)</p> Signup and view all the answers

What is the role of AWS Glue crawlers in schema identification and data cataloging?

<p>They derive schemas from data stores and provide them to the AWS Glue Data Catalog. (C)</p> Signup and view all the answers

Which of the following is a key feature of AWS Glue Studio?

<p>Low-code job creation and management. (D)</p> Signup and view all the answers

In AWS Glue, how are jobs processed in a serverless environment?

<p>Through the AWS Glue Spark runtime engine. (C)</p> Signup and view all the answers

What is the purpose of AWS Glue workflows?

<p>They provide ETL orchestration. (C)</p> Signup and view all the answers

Which AWS service provides integrated monitoring and logging for AWS Glue, including job run insights?

<p>Amazon CloudWatch. (D)</p> Signup and view all the answers

When scaling AWS Glue jobs, what is the effect of increasing the number of workers?

<p>Horizontal Scaling. (A)</p> Signup and view all the answers

For what type of batch processing workload is it most beneficial to choose a larger worker type in AWS Glue?

<p>Processing Machine Learning transformations. (B)</p> Signup and view all the answers

When building a real-time stream processing pipeline, what do 'producers' primarily do?

<p>They put records on the stream. (C)</p> Signup and view all the answers

Which of the following is a key characteristic of stream ingestion and processing?

<p>It uses loose coupling. (A)</p> Signup and view all the answers

In the context of Kinesis Data Streams, what is a shard?

<p>A uniquely identified sequence of data records. (B)</p> Signup and view all the answers

How does a partition key affect data records in Amazon Kinesis Data Streams?

<p>It determines which shard to use. (B)</p> Signup and view all the answers

What is a benefit of using Amazon Data Firehose for stream processing?

<p>It performs no-code or low-code streaming ETL. (D)</p> Signup and view all the answers

What is the main purpose of Amazon Managed Service for Apache Flink?

<p>Query and analyze streaming data. (A)</p> Signup and view all the answers

What is the role of the Kinesis Producer Library (KPL) in stream processing?

<p>It simplifies the work of writing producers for Kinesis Data Streams. (B)</p> Signup and view all the answers

Which components are included in the data records on Kinesis Streams?

<p>Sequence number, partition key, and data blob. (B)</p> Signup and view all the answers

Which action can be performed by the AWS IoT Core rules engine?

<p>Transform and route incoming messages to AWS services. (D)</p> Signup and view all the answers

Which availability metric can be tracked with CloudWatch for Kinesis

<p>Read and Write Failures (A)</p> Signup and view all the answers

What is a purpose of AWS IoT?

<p>Securely connect, process, and act on IoT device data. (A)</p> Signup and view all the answers

What components would you find in the AWS IoT universe?

<p>Devices, Interfaces, Communications and Cloud Services (D)</p> Signup and view all the answers

What communications protocols are used with AWS Iot?

<p>MQTT and Pub/Sub (D)</p> Signup and view all the answers

A data engineer is tasked to create a Stream Processing Pipeline to reformat a .csv file to .json and deliver it to an S3 bucket, while minimizing the amount of code. Which service should they use?

<p>Amazon Data Firehose (B)</p> Signup and view all the answers

True or False. Kinesis Data Streams allows applications running on consumer services such as EC2 to consume the ingested data.

<p>True (B)</p> Signup and view all the answers

True or False. AWS Glue requires you to manually manage and maintain servers in order for it to run.

<p>False (A)</p> Signup and view all the answers

You are using AWS Glue and need to run many jobs in parallel. Your data comes in the form of large, splittable files. What should you use to let the AWS Glue Spark runtime engine run many jobs in parallel?

<p>Make sure the file is large and splittable (D)</p> Signup and view all the answers

You need to ingest large amounts of data to data stores, data lakes, and analytics services. What is the best method of doing this?

<p>Amazon Data Firehose (D)</p> Signup and view all the answers

What is a scaling option for Kinesis Data Streams?

<p>All of the above (D)</p> Signup and view all the answers

What functionality is Amazon CloudWatch used for?

<p>All of the above (D)</p> Signup and view all the answers

Which AWS service has the main feature of real time data ingestion?

<p>Amazon Kinesis Data Streams (A)</p> Signup and view all the answers

A company needs to ingest sales transaction data and also sensor data from IoT devices. Choose ONE Primary AWS service for EACH data type, in order:

<p>AWS DMS and Amazon Kinesis Data Streams (A)</p> Signup and view all the answers

Flashcards

Batch Ingestion

Ingest and process records as a dataset; can be run on demand, schedule or event-based.

Streaming Ingestion

Ingest records continually, processing sets as they arrive on the stream.

Ingestion method suitability

This method suits both the amount of data being ingested and the frequency

Batch ingestion example

Used for sales transaction data processed overnight and reported in the morning.

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Streaming ingestion example

Used to process clickstream data in real time, providing immediate product recommendations.

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Batch job process

Query source, transform data, and load it into the pipeline.

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Traditional ETL

Extract, Transform, Load: A traditional data pipeline

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Stream processing

Producers put records on a stream; consumers retrieve and process them.

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Batch ingestion

Tasks that write scripts and jobs to perform the ETL or ELT process.

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Workflow orchestration

Helps handle interdependencies between jobs and manage failures.

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Amazon AppFlow

A program that simplifies ingestion of data from software as a service applications.

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AWS DMS

A data ingestion tool that pulls data from relational databases into AWS.

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AWS DataSync

DataSync is a tool to transfer data from file systems into AWS.

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AWS Data Exchange

Find and incorporate third-party datasets into your pipelines.

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AWS Glue

Data Integration Service which simplifies ETL tasks.

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AWS Glue Crawlers

Derive schemas from data stores and provide them to the centralized AWS Glue Data Catalog.

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AWS Glue Studio

Provides visual authoring and job management tools.

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AWS Glue Spark runtime engine

Processes jobs in a serverless environment.

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AWS Glue Workflows

Provide ETL orchestration.

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CloudWatch

Provides integrated monitoring and logging for AWS Glue.

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Horizontal Scaling

Increase the number of workers that are allocated to the job

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Vertical Scaling

Choose a worker type with larger CPU, memory, and disk space.

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Stream Throughput

Plan for a resilient and scalable stream that can adapt to changing velocity and volume.

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Loose Coupling

Independent modularity in ingestion, processing and consumer components.

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Parallel Consumers

Allows them to act without affecting one another on a Kinesis stream.

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Checkpointing and replay

The ability to record order and allow replay while supporting failure.

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The Stream

A buffer between Producers and Consumers.

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Amazon Data Firehose

This data analytics engine ingests data from other AWS streaming services.

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Amazon Managed Service for Apache Flink

This framework queries and analyzes streaming data in other AWS streaming services.

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Shard

A uniquely identified sequence of data records.

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Data records

Contains sequence number, partition key and data blob.

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Kinesis Scaling

Write stream capacity and consumer types.

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AWS IoT Core

Used to secure, process, and act on IoT device data.

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MQTT

IoT devices need what type of protocol?

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AWS IoT Core rules engine

Transforms and routes incoming messages to AWS services.

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Sample exam question

A stream processing pipeline that converts .csv data to .json before delivering to S3.

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Study Notes

  • This module prepares one to perform key tasks when building an ingestion layer.
  • The module also covers how purpose-built AWS services support ingestion tasks.
  • The features of AWS Glue work together to automate batch ingestion.
  • You can describe AWS streaming services and features to simplify streaming ingestion.
  • Identify configuration options in AWS Glue and Amazon Kinesis Data Streams that help you scale your ingestion processing.
  • The module also covers distinct characteristics of ingesting Internet of Things (IoT) data by using AWS IoT Core.

Batch and Streaming Data Flow

  • Batch ingestion processes a batch of records as a dataset, running on demand, on a schedule, or based on an event.
  • Streaming ingestion continually ingests records and processes sets of records as they arrive on the stream.
  • Key drivers for data ingestion are data volume and velocity.

Batch Ingestion

  • Sales transaction data is sent periodically to a central location for overnight analysis and reports.

Streaming Ingestion

  • Clickstream data has a large volume of small bits of data sent at a continuous pace and must be analyzed immediately for recommendations.
  • Batch jobs query the source, transform the data, and load it into the pipeline.
  • Traditional ETL uses batch processing.
  • With stream processing, producers put records on a stream where consumers get and process them.
  • Streams are designed to handle high-velocity data and real-time processing.
  • Batch ingestion involves writing scripts and jobs to perform ETL or ELT processes.
  • Key characteristics for pipeline design include ease of use, data volume and variety, orchestration and monitoring, scaling, and cost management.

Building a Batch Processing Pipeline

  • Start by extracting data from sources, then transform/load, and finally load/transform.

Data Volume and Variety

  • Handling large volumes of data is required.
  • Support disparate source and target systems.
  • Must support different data formats seamlessly.

Orchestration and monitoring parameters

  • You have to support workflow creation.
  • Key to Provide dependency management on the workflow.
  • Supporting bookmarking is key.
  • Enable logging.
  • Alerts on job failure

Match AWS Purpose-Built Tools to Data Sources

  • Amazon AppFlow ingests data from software as a service (SaaS) applications, by creating connectors with filters.
  • Amazon AppFlow can map fields and perform transformations, perform validation, and securely transfer to Amazon S3 or Amazon Redshift.
  • AWS DMS ingests data from relational databases; connecting to source data and formatting it for a target.
  • With AWS DMS one can Use source filters and table mappings, perform data validation, and write to many AWS data stores or create a continuous replication task.
  • AWS DataSync is used for ingesting data from file systems, by applying filters to transfer a subset of files.
  • With DataSync one can use a variety of file systems as sources and targets, including Amazon S3 as a target.
  • DataSync can also securely transfer data between self-managed storage systems and AWS storage services.
  • AWS Data Exchange helps integrate third-party datasets into pipelines.
  • With AWS Data Exchange you can find and subscribe to sources, preview before subscribing, copy subscribed datasets to Amazon S3, and receive notifications of updates.

Key Takeaways

  • Choose purpose-built tools that match the type of data to be ingested and simplify ingestion tasks.
  • Amazon AppFlow, AWS DMS, and DataSync each simplify the ingestion of specific data types.
  • AWS Data Exchange provides a simplified way to find and subscribe to third-party datasets.
  • AWS Glue simplifies batch ingestion tasks through schema identification, data cataloging, job authoring and monitoring.
  • AWS Glue offers serverless ETL processing and ETL orchestration.
  • AWS Glue crawlers derive schemas from data stores and provide them to the centralized AWS Glue Data Catalog.
  • AWS Glue Studio provides visual authoring and job management tools.
  • AWS Glue Spark runtime engine processes jobs in a serverless environment.
  • AWS Glue workflows provide ETL orchestration.
  • CloudWatch provides integrated monitoring and logging for AWS Glue, including job run insights.

Horizontal Scaling

  • Increase the number of workers allocated to the job.
  • Horizontal Scaling is used when working with large, splittable datasets.

Vertical Scaling

  • Choose a worker type with larger CPU, memory, and disk space.
  • Vertical Scaling should be used when Working with memory-intensive or disk-intensive applications or executing Machine learning (ML) transformations.

Scaling Considerations

  • Performance goals should focus on optimizing batch processing.
  • Scale AWS Glue jobs horizontally by adding more workers, or vertically by choosing a larger worker in the job configuration.
  • Large, splittable files let the AWS Glue Spark runtime engine run many jobs in parallel with less overhead than processing many smaller files.
  • Key characteristics for stream ingestion and processing are throughput, loose coupling, parallel consumers, checkpointing, and replay.
  • Throughput means planning for a resilient, scalable stream that can adapt to velocity and volume.
  • Loose coupling involves building independent ingestion, processing, and consumer components.
  • Parallel consumers allow multiple consumers on a stream to process records in parallel and independently.
  • Checkpointing and replay maintains record order and allow replay, and supports the ability to mark the farthest record processed on failure.
  • Amazon Data Firehose performs no-code or low-code streaming ETL by ingesting from many AWS services, applying built-in and custom transformations.
  • With Amazon Data Firehose you can deliver directly to data stores, data lakes, and analytics services.
  • Amazon Managed Service for Apache Flink queries and analyzes streaming data by ingesting data from other services, enriching and augmenting data across time windows.
  • It Builds applications in Apache Flink and uses SQL, Java, Python, or Scala.
  • The stream is a buffer between the producers and the consumers of the stream.
  • Scaling Considerations for stream processing Kinesis Data Streams provides for the management of scaling options, throughput of data, and scaling of data written on the stream.
  • AWS IoT Core provides the ability to securely connect, process, and act on IoT device data; including features to filter and transform.
  • AWS IoT Core can also route data to other AWS services, including streaming and storage services.
  • With AWS IoT services, one can use MQTT and a pub/sub model to communicate with IoT devices.
  • You can also use AWS IoT Core to securely connect, process, and act upon device data.
  • The AWS IoT Core rules engine transforms and routes incoming messages to AWS services.

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