Amazon CloudWatch Events endpoints and quotas - AWS General Reference

Amazon CloudWatch Events endpoints and quotas

The following are the service endpoints and service quotas for this service. To connect programmatically to an AWS service, you use an endpoint. In addition to the standard AWS endpoints, some AWS services offer FIPS endpoints in selected Regions. For more information, see AWS service endpoints. Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see AWS service quotas.

Service Endpoints

Region Name Region Endpoint Protocol
US East (Ohio) us-east-2

events.us-east-2.amazonaws.com

events-fips.us-east-2.amazonaws.com

HTTPS

HTTPS

US East (N. Virginia) us-east-1

events.us-east-1.amazonaws.com

events-fips.us-east-1.amazonaws.com

HTTPS

HTTPS

US West (N. California) us-west-1

events.us-west-1.amazonaws.com

events-fips.us-west-1.amazonaws.com

HTTPS

HTTPS

US West (Oregon) us-west-2

events.us-west-2.amazonaws.com

events-fips.us-west-2.amazonaws.com

HTTPS

HTTPS

Africa (Cape Town) af-south-1 events.af-south-1.amazonaws.com HTTPS
Asia Pacific (Hong Kong) ap-east-1 events.ap-east-1.amazonaws.com HTTPS
Asia Pacific (Mumbai) ap-south-1 events.ap-south-1.amazonaws.com HTTPS
Asia Pacific (Osaka-Local) ap-northeast-3 events.ap-northeast-3.amazonaws.com HTTPS
Asia Pacific (Seoul) ap-northeast-2 events.ap-northeast-2.amazonaws.com HTTPS
Asia Pacific (Singapore) ap-southeast-1 events.ap-southeast-1.amazonaws.com HTTPS
Asia Pacific (Sydney) ap-southeast-2 events.ap-southeast-2.amazonaws.com HTTPS
Asia Pacific (Tokyo) ap-northeast-1 events.ap-northeast-1.amazonaws.com HTTPS
Canada (Central) ca-central-1 events.ca-central-1.amazonaws.com HTTPS
China (Beijing) cn-north-1 events.cn-north-1.amazonaws.com.cn HTTPS
China (Ningxia) cn-northwest-1 events.cn-northwest-1.amazonaws.com.cn HTTPS
Europe (Frankfurt) eu-central-1 events.eu-central-1.amazonaws.com HTTPS
Europe (Ireland) eu-west-1 events.eu-west-1.amazonaws.com HTTPS
Europe (London) eu-west-2 events.eu-west-2.amazonaws.com HTTPS
Europe (Milan) eu-south-1 events.eu-south-1.amazonaws.com HTTPS
Europe (Paris) eu-west-3 events.eu-west-3.amazonaws.com HTTPS
Europe (Stockholm) eu-north-1 events.eu-north-1.amazonaws.com HTTPS
Middle East (Bahrain) me-south-1 events.me-south-1.amazonaws.com HTTPS
South America (São Paulo) sa-east-1 events.sa-east-1.amazonaws.com HTTPS
AWS GovCloud (US-East) us-gov-east-1

events.us-gov-east-1.amazonaws.com

events.us-gov-east-1.amazonaws.com

HTTPS

HTTPS

AWS GovCloud (US) us-gov-west-1

events.us-gov-west-1.amazonaws.com

events.us-gov-west-1.amazonaws.com

HTTPS

HTTPS

For information about using Amazon CloudWatch Events in the AWS GovCloud (US-West) Region, see AWS GovCloud (US-West) Endpoints.

Service Quotas

Resource Default

Batch size

1 MB (maximum). This quota cannot be changed.

Data archiving

Up to 5 GB of data archiving for free. This quota cannot be changed.

DescribeLogStreams

5 transactions per second (TPS/account/Region).

Discovered log fields

CloudWatch Logs Insights can discover a maximum of 1000 log event fields in a log group. This quota cannot be changed.

Event size

256 KB (maximum). This quota cannot be changed.

Export task

One active (running or pending) export task at a time, per account. This quota cannot be changed.

FilterLogEvents

5 transactions per second (TPS)/account/Region. This quota cannot be changed.

GetLogEvents

10 requests per second per account per Region. This quota cannot be changed.

We recommend subscriptions if you are continuously processing new data. If you need historical data, we recommend exporting your data to Amazon S3.

Incoming data

Up to 5 GB of incoming data for free. This quota cannot be changed.

Log groups

20,000 log groups per account per Region. You can request a quota increase.

There is no quota on the number of log streams that can belong to one log group.

Metrics filters

100 per log group. This quota cannot be changed.

PutLogEvents

5 requests per second per log stream. Additional requests are throttled. This quota cannot be changed.

The maximum batch size of a PutLogEvents request is 1MB.

1500 transactions per second per account per Region, except for the following Regions where the quota is 800 transactions per second per account per Region: ap-south-1, ap-northeast-1, ap-northeast-2, ap-southeast-1, ap-southeast-2, eu-central-1, eu-west-2, sa-east-1, us-east-2, and us-west-1. You can request a quota increase.

Query concurrency

A maximum of 4 concurrent CloudWatch Logs Insights queries, including queries that have been added to dashboards. You can request a quota increase.

Query results displayed in console

In CloudWatch Logs Insights query results, a maximum of 10000 log events are displayed on the console. This quota cannot be changed.

Subscription filters

1 per log group. This quota cannot be changed.

For more information, see CloudWatch Logs Quotas in the Amazon CloudWatch Logs User Guide.