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You're reading from  AWS Certified Database – Specialty (DBS-C01) Certification Guide

Product typeBook
Published inMay 2022
PublisherPackt
ISBN-139781803243108
Edition1st Edition
Concepts
IT Certification
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Author (1)
Kate Gawron
Kate Gawron
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Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron

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Performance tuning and maintaining DocumentDB

DocumentDB is a very specialized database, so tuning methods that are used on other systems are not that effective. It is important to choose the right size instance for your DocumentDB as this controls the resources it is given. Without sufficient memory and CPU, your performance will be poor and queries will be slow. If you are migrating from MongoDB, it is recommended to match the resource that was allocated to your MongoDB cluster initially as a start and tune from there. For a new workload, it can be different to accurately estimate the resources needed. For those cases, you need to test different instance sizes as extensively as possible before launching your production or critical workloads.

Once your primary instance has been sized correctly, you can consider some other performance tuning options such as read replicas.

Read replicas

DocumentDB allows for up to 15 read replicas per cluster. A read replica is a copy of...

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AWS Certified Database – Specialty (DBS-C01) Certification Guide
Published in: May 2022Publisher: PacktISBN-13: 9781803243108
© 2022 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron

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