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AWS Reference Notes
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      • Common
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        • AWS ParallelCluster version 2
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        • Configuring functions
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  • Database
    • Amazon Aurora
      • Common
        • What is Aurora?
        • Getting started
        • Configuring your Aurora DB cluster
        • Monitoring metrics in an Aurora DB cluster
        • Monitoring events, logs, and database activity streams
        • Security
      • Topics
        • Managing an Aurora DB cluster
        • Using Blue/Green Deployments for database updates
        • Backing up and restoring an Aurora DB cluster
        • Working with Aurora MySQL
        • Working with Aurora PostgreSQL
        • Using RDS Proxy
        • Using Aurora Serverless v2
        • Using Aurora Serverless v1
    • Amazon RDS
      • Common
        • What is Amazon RDS?
        • Getting started
        • Configuring a DB instance
        • Configuring and managing a Multi-AZ deployment
        • Monitoring metrics in a DB instance
        • Monitoring events, logs, and database activity streams
        • Security
      • Topics
        • Managing a DB instance
        • Using Blue/Green Deployments for database updates
        • Backing up and restoring
        • Working with Amazon RDS Custom
        • Working with RDS on AWS Outposts
        • Using RDS Proxy
        • MariaDB on Amazon RDS
        • Microsoft SQL Server on Amazon RDS
        • MySQL on Amazon RDS
        • Oracle on Amazon RDS
        • PostgreSQL on Amazon RDS
  • Machine Learning
    • Amazon SageMaker
      • Common
        • Security
        • Monitoring
      • Topics
        • What Is Amazon SageMaker?
        • Get Started
        • Machine Learning Environments
        • Autopilot: Automated ML
        • Label Data
        • Prepare and Analyze Datasets
        • Create, Store, and Share Features
        • Training
        • Deploy Models for Inference
        • Docker containers with SageMaker
        • Augmented AI
        • Marketplace
    • Amazon CodeGuru
      • Common
        • Getting started
        • Security
      • Topics
        • Setting up
        • Working with repository associations
        • Working with code reviews
    • Amazon Comprehend Medical
      • Common
      • Topics
        • Text analysis APIs
        • Ontology Linking APIs
    • Amazon Forecast
      • Common
        • Getting Started
      • Topics
        • Setting Up
        • Importing Datasets
        • Training Predictors
        • Managing Resources
    • Amazon Kendra
      • Common
        • Getting started
      • Topics
        • How Amazon Kendra works
        • Searching indexes
        • Adding custom synonyms to an index
        • Tutorial: Building an intelligent search solution
    • Amazon Lex
      • Common
        • Getting Started
      • Topics
        • How It Works
        • Using Lambda Functions
        • Deploying Bots
        • Importing and Exporting
        • Bot Examples
    • Amazon Lookout for Vision
      • Common
      • Topics
        • Setting up Amazon Lookout for Vision
        • Creating your model
        • Improving your model
        • Running your model
        • Using your model on an edge device
        • Managing your resources
        • Example code and datasets
    • AWS Panorama
      • Common
        • Getting started
        • Monitoring
      • Topics
        • Permissions
        • Appliance
        • Building applications
    • Amazon Personalize
      • Common
      • Topics
        • Filtering results
    • Amazon Polly
      • Common
      • Topics
        • Voices in Amazon Polly
        • Neural TTS
        • Speech Marks
        • Using SSML
        • Amazon Polly for Windows (SAPI)
    • Amazon Rekognition
      • Common
        • Getting started
        • Tutorials
        • Security
      • Topics
        • How it works
        • Detecting and analyzing faces
        • Searching faces in a collection
        • Recognizing celebrities
        • Moderating content
        • Detecting text
        • Detecting video segments
    • Amazon Textract
      • Common
        • Getting Started
        • Security
      • Topics
        • How It Works
        • Processing Documents with Synchronous Operations
        • Processing Documents with Asynchronous Operations
        • Amazon A2I and Amazon Textract
        • Quotas
    • AWS Deep Learning AMIs
      • Common
        • Getting Started
      • Topics
        • What Is the AWS Deep Learning AMI?
        • Launching a DLAMI
        • Using a DLAMI
        • Upgrading Your DLAMI
    • AWS Deep Learning Containers
      • Common
      • Topics
        • Getting Started With Deep Learning Containers
        • Deep Learning Containers Resources
    • AWS DeepLens
      • Common
      • Topics
        • Managing Your Device
    • AWS DeepRacer
      • Common
      • Topics
        • How it works
        • Operate your vehicle
        • Join a race
        • Tagging
        • Troubleshoot common issues
  • Containers
    • AWS App Runner
      • Common
        • Networking
      • Topics
        • Managing your service
        • Observability
        • App Runner configuration file
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    • Amazon ECS
      • Common
        • Getting started
        • Resources and tags
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        • Working with other services
        • Tutorials
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      • Topics
        • Developer tools overview
        • Clusters
        • Task definitions
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        • Scheduling tasks
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  • Storage
    • Amazon EBS
      • Common
        • Monitor
        • Networking
        • Security
        • Resources and tags
        • Troubleshoot
      • Topics
        • Amazon Machine Images
        • Instances
        • Storage
    • Amazon EFS
      • Common
        • Getting started
        • Security
      • Topics
        • Working with EFS resources
        • Using amazon-efs-utils
        • Mounting file systems
        • Transferring data
        • Managing file systems
        • EFS backups
        • Walkthroughs
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        • Additional information
    • Amazon S3 Glacier
      • Common
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      • Topics
        • What Is Amazon S3 Glacier?
        • Working with Vaults
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        • Using the AWS SDKs
        • API Reference
  • Migration & Transfer
    • AWS Snow Family
      • Common
        • What is Snowball Edge?
        • Getting Started
        • Security
      • Topics
        • Large Data Migration
        • Using AWS OpsHub to Manage Devices
        • Using a Snowball Edge Device
        • Using Snow Device Management to Manage Devices
        • Understanding AWS Snowball Edge Jobs
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        • Quotas
    • AWS Application Discovery Service
      • Common
      • Topics
        • Setting up
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        • View, export & explore data
        • Console Walkthroughs
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        • Getting started
        • Security
      • Topics
        • Working with replication instances
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        • Security
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      • Topics
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        • Using the AWS CLI
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      • Common
        • Getting started
      • Topics
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      • Common
        • Configuring AS2
        • Security
      • Topics
        • Setting up
        • Creating a server
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  • Security, Identity, & Compliance
    • AWS Identity and Access Management (IAM)
      • Common
        • What is IAM?
        • Tutorials
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      • Topics
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        • Reference
    • Amazon Cognito
      • Common
        • Tutorials
        • Security
      • Topics
        • Amazon Cognito user pools
        • Amazon Cognito identity pools
        • Amazon Cognito Sync
    • AWS IAM Identity Center (successor to AWS Single Sign-On)
      • Common
        • Getting started
      • Topics
        • Workforce identities
        • Multi-account permissions
        • Application assignments
        • Resiliency design and Regional behavior
    • AWS Resource Access Manager (AWS RAM)
      • Common
        • Getting started
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      • Topics
        • Working with shared resources
        • Managing permissions in AWS RAM
    • AWS Secrets Manager
      • Common
      • Topics
        • Create and manage secrets
        • Retrieve secrets
        • Rotate secrets
        • Security in Secrets Manager
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      • Common
      • Topics
        • AWS WAF
        • AWS WAF Classic
        • AWS Shield
  • Cryptography & PKI
    • AWS Cryptographic Services Overview
      • Common
      • Topics
        • AWS cryptographic services and tools
    • AWS CloudHSM
      • Common
        • Getting started
        • Troubleshooting
      • Topics
        • Managing clusters
        • Managing backups
        • Integrating third-party applications
    • AWS Key Management Service (AWS KMS)
      • Common
      • Topics
        • AWS Key Management Service
        • Managing keys
        • Authentication and access control
        • Special-purpose keys
        • Quotas
        • How AWS services use AWS KMS
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    • AWS Private Certificate Authority
      • Common
        • What is AWS Private CA?
        • Security
      • Topics
        • Planning a private CA
        • CA administration
        • Certificate administration
        • Using the API (Java examples)
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      • Common
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        • Monitoring AWS Chatbot
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      • Topics
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    • AWS Command Line Interface (AWS CLI)
      • Common
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      • Topics
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      • Common
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      • Common
      • Topics
        • Aggregating AWS Health events
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      • Common
        • Security
      • Topics
        • AWS Launch Wizard for Amazon Elastic Kubernetes Service
        • AWS Launch Wizard for Exchange Server
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      • Common
      • Topics
        • Resource groups
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      • Common
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      • Common
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      • Topics
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      • Common
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      • Topics
        • Using the AWS Direct Connect Resiliency Toolkit to get started
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    • Amazon Route 53
      • Common
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        • Configuring Amazon Route 53 as your DNS service
        • What is Route 53 Resolver?
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      • Topics
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  • Application Integration
    • AWS Step Functions
      • Common
        • Tutorials
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        • Logging and monitoring
  • Developer Tools
    • AWS Cloud9
      • Common
        • Security
      • Topics
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      • Common
        • Security
      • Topics
        • Working with repositories
        • Working with upstream repositories
        • Working with packages
        • Working with domains
        • Using npm
        • Using Python
        • Using Maven
        • Using NuGet
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        • Working with VPC endpoints
    • AWS CodeDeploy
      • Common
        • What is CodeDeploy?
        • Getting started
        • Tutorials
        • Security
        • Troubleshooting
      • Topics
        • Product and service integrations
        • Working with instances
        • Working with application revisions
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        • Reference
    • AWS CodeStar
      • Common
      • Topics
        • Getting Started with AWS CodeStar
        • Working with Projects
        • Working with Teams
        • Working with Your AWS CodeStar User Profile
    • Porting Assistant for .NET
      • Common
      • Topics
        • Get Started
        • Porting Assistant for .NET Visual Studio IDE extension
    • AWS X-Ray
      • Common
        • Security
      • Topics
        • X-Ray console
        • X-Ray API
        • Sample application
        • X-Ray daemon
        • Integrating with AWS services
        • Working with Go
        • Working with Node.js
        • Working with Python
        • Working with .NET
  • Media Services
    • Amazon Elastic Transcoder
      • Common
      • Topics
        • Working with Pipelines
        • Working with Jobs
        • Working with Presets
        • Securing Your Content
        • API Reference
  • Internet of Things (IoT)
    • AWS IoT Device Defender
      • Common
        • Security
        • Monitoring AWS IoT
        • Troubleshooting
      • Topics
        • Getting started with AWS IoT Core
        • Connecting to AWS IoT Core
        • Managing devices with AWS IoT
        • Tagging your AWS IoT resources
        • Rules
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        • Jobs
        • AWS IoT secure tunneling
        • Device provisioning
        • Fleet indexing
        • MQTT-based file delivery
        • AWS IoT Device Defender
        • Device Advisor
        • Event messages
        • AWS IoT Core for LoRaWAN
        • Event notifications for AWS IoT Wireless
    • AWS IoT Device Management
      • Common
        • Security
        • Monitoring AWS IoT
        • Troubleshooting
      • Topics
        • Getting started with AWS IoT Core
        • Connecting to AWS IoT Core
        • Managing devices with AWS IoT
        • Tagging your AWS IoT resources
        • Rules
        • Device Shadow service
        • Jobs
        • AWS IoT secure tunneling
        • Device provisioning
        • Fleet indexing
        • MQTT-based file delivery
        • AWS IoT Device Defender
        • Device Advisor
        • Event messages
        • AWS IoT Core for LoRaWAN
        • Event notifications for AWS IoT Wireless
    • AWS IoT Events
      • Common
        • Tutorials
        • Monitoring with alarms
        • Troubleshooting
      • Topics
        • Supported actions
        • Expressions
    • AWS IoT Greengrass
      • Common
        • What is AWS IoT Greengrass?
        • Tutorials
        • Security
      • Topics
        • Setting up Greengrass core devices
        • Components
        • Logging and monitoring
        • Run Lambda functions
        • Communicate with the Greengrass nucleus, other components, and AWS IoT Core
        • Interact with local IoT devices
        • Interact with device shadows
        • Manage data streams
        • Perform machine learning inference
        • Manage core devices with AWS Systems Manager
        • Using AWS IoT Device Tester for AWS IoT Greengrass V2
    • AWS IoT SiteWise
      • Common
        • Getting started
        • Tutorials
        • Monitoring data with alarms
        • Monitoring data with web portals
        • Security
        • Troubleshooting
      • Topics
        • Ingesting data to AWS IoT SiteWise
        • Using AWS IoT SiteWise gateways
        • Modeling industrial assets
        • Managing data ingestion
        • Interacting with other services
        • Logging and monitoring
        • Endpoints and quotas
  • Business Applications
    • Amazon Chime SDK
      • Common
      • Topics
        • Using the Amazon Chime SDK
        • Using Amazon Chime SDK meetings
        • Using Amazon Chime SDK messaging
  • Analytics
    • Amazon CloudSearch
      • Common
        • Getting Started
      • Topics
        • What Is Amazon CloudSearch?
        • Creating and Managing Search Domains
        • Controlling How Data is Indexed
        • Uploading and Indexing Data
        • Searching Your Data
        • Querying For More Information
        • Controlling Search Results
        • Amazon CloudSearch API Reference
    • AWS Data Exchange
      • Common
        • Security
      • Topics
        • Subscribing to data products
        • Providing data products
        • AWS Marketplace Catalog API
    • AWS Data Pipeline
      • Common
        • Troubleshooting
      • Topics
        • AWS Data Pipeline Concepts
        • Working with Pipelines
        • Pipeline Expressions and Functions
        • Pipeline Object Reference
        • Working with Task Runner
    • Amazon OpenSearch Service
      • Common
        • Getting started
        • Monitoring domains
        • Security
        • Monitoring data
        • Tutorials
      • Topics
        • Amazon OpenSearch Serverless
        • Amazon OpenSearch Ingestion
        • Creating and managing domains
        • Sample code
        • Indexing data
        • Searching data
        • Managing indexes
        • Best practices
        • General reference
    • AWS Glue
      • Common
        • Getting started
      • Topics
        • How it works
        • Data Catalog and crawlers
        • Job development (interactive sessions)
        • ETL jobs
        • Orchestration
        • AWS Glue API
        • Troubleshooting AWS Glue
    • Amazon MSK
      • Common
        • Getting started
        • Security
        • Monitoring a cluster
      • Topics
        • How it works
        • Configuration
        • MSK Connect
        • Connecting to an MSK cluster
        • Apache Kafka versions
  • Robotics
    • AWS RoboMaker
      • Common
        • Security
      • Topics
  • Blockchain
    • Amazon Managed Blockchain
      • Common
        • Getting Started
      • Topics
        • Work with Hyperledger Fabric
  • Game Development
    • Amazon GameLift
      • Common
      • Topics
        • Setting up
        • Preparing games for Amazon GameLift
        • Managing hosting resources
        • Viewing game data
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On this page
  • Aurora DB clusters
  • Aurora versions
  • Regions and Availability Zones
  • Aurora connection management
  • DB instance classes
  • Aurora storage and reliability
  • High availability for Amazon Aurora
  • Replication with Aurora

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  1. Database
  2. Amazon Aurora
  3. Common

What is Aurora?

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Last updated 2 years ago

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This page was generated from content adapted from the

Aurora DB clusters

  • Note The preceding information applies to provisioned clusters, parallel query clusters, global database clusters, Aurora Serverless clusters, and all MySQL 8.0-compatible, 5.7-compatible, and PostgreSQL-compatible clusters.

Aurora versions

  • Note If you want to remain on an LTS minor version for the duration of its lifecycle, make sure to turn off Auto minor version upgrade for your DB instances. To avoid automatically upgrading your DB cluster from the LTS minor version, set Auto minor version upgrade to No on any DB instance in your Aurora cluster.

Regions and Availability Zones

  • Note For information about finding the Availability Zones for an AWS Region, see in the Amazon EC2 documentation.

  • Note Aurora doesn't support Local Zones.

Aurora connection management

  • Tip Through RDS Proxy, you can create additional read-only endpoints for an Aurora cluster. These endpoints perform the same kind of load-balancing as the Aurora reader endpoint. Applications can reconnect more quickly to the proxy endpoints than the Aurora reader endpoint if reader instances become unavailable. The proxy endpoints can also take advantage of other proxy features such as multiplexing. For more information, see .

  • Note You must also create and manage custom endpoints for Aurora clusters restored from snapshots. Custom endpoints are not included in the snapshot. You create them again after restoring, and choose new endpoint names if the restored cluster is in the same region as the original one.

DB instance classes

  • Note When you perform operations with the AWS CLI, it automatically shows the supported DB instance classes for a specific DB engine, DB engine version, and AWS Region. Examples of the operations that you can perform include creating and modifying a DB instance.

Aurora storage and reliability

  • Tip For earlier versions without the dynamic resizing feature, resetting the storage usage for a cluster involved doing a logical dump and restoring to a new cluster. That operation can take a long time for a substantial volume of data. If you encounter this situation, consider upgrading your cluster to a version that supports dynamic volume resizing.

High availability for Amazon Aurora

  • Tip Within each AWS Region, Availability Zones (AZs) represent locations that are distinct from each other to provide isolation in case of outages. We recommend that you distribute the primary instance and reader instances in your DB cluster over multiple Availability Zones to improve the availability of your DB cluster. That way, an issue that affects an entire Availability Zone doesn't cause an outage for your cluster. You can set up a Multi-AZ cluster by making a simple choice when you create the cluster. The choice is simple whether you use the AWS Management Console, the AWS CLI, or the Amazon RDS API. You can also make an existing Aurora cluster into a Multi-AZ cluster by adding a new reader instance and specifying a different Availability Zone.

Replication with Aurora

  • Tip You can use Aurora Replicas within an Aurora cluster as your only form of replication to keep your data highly available. You can also combine the built-in Aurora replication with the other types of replication. Doing so can help to provide an extra level of high availability and geographic distribution of your data.

Note We recommend using the T DB instance classes only for development, test, or other nonproduction servers. For more detailed recommendations for the T instance classes, see .

Note The storage limits and dynamic resizing behavior discussed here apply to persistent tables and other data stored in the cluster volume. For Aurora PostgreSQL, temporary table data is stored in the local DB instance. For Aurora MySQL version 2, temporary table data is stored by default in the cluster volume for writer instances and in local storage for reader instances. For more information, see . For Aurora MySQL version 3, temporary table data is stored in the local DB instance or in the cluster volume. For more information, see . The maximum size of temporary tables that reside in local storage is limited by the maximum local storage size of the DB instance. The local storage size depends on the instance class that you use. For more information, see and .

Tip In Aurora MySQL 2.10 and higher, you can improve availability during a failover by having more than one reader DB instance in a cluster. In Aurora MySQL 2.10 and higher, Aurora restarts only the writer DB instance and the failover target during a failover. Other reader DB instances in the cluster remain available to continue processing queries through connections to the reader endpoint. You can also improve availability during a failover by using RDS Proxy with your Aurora DB cluster. For more information, see .

Note Amazon Aurora also supports replication with an external MySQL database, or an RDS MySQL DB instance. For more information, see .

AWS Developer Guide
Describe your Availability Zones
Using reader endpoints with Aurora clusters
Using T instance classes for development and testing
Storage engine for on-disk temporary tables
New temporary table behavior in Aurora MySQL version 3
Temporary storage limits for Aurora MySQLTemporary storage limits
Temporary storage limits for Aurora PostgreSQLTemporary storage limits
Replication between Aurora and MySQL or between Aurora and another Aurora DB cluster (binary log replication)
High availability with Amazon RDS Proxy