Menu
Amazon CloudWatch Logs
User Guide

CloudWatch Logs Limits

CloudWatch Logs has the following limits:

ResourceDefault Limit

Batch size

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

CreateLogGroup

500 log groups/account/region.

If you exceed your log group limit, you get a ResourceLimitExceeded exception.

You can request a limit increase.

Data archiving

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

DescribeLogStreams

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

If you experience frequent throttling, you can request a limit increase.

Event size

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

Export task

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

FilterLogEvents

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

This limit can be changed only in special circumstances. If you experience frequent throttling, contact AWS Support. For instructions, see AWS Service Limits.

GetLogEvents

10 requests/second/account/region. We recommend subscriptions if you are continuously processing new data. If you need historical data, we recommend exporting your data to Amazon S3.

This limit can be changed only in special circumstances. If you experience frequent throttling, contact AWS Support. For instructions, see AWS Service Limits.

Incoming data

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

Log groups

500/AWS account (maximum).

You can request a limit increase.

Metrics filters

100/log group. This limit cannot be changed.

PutLogEvents

5 requests/second/log stream. This limit cannot be changed.

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

1500 transactions/second/account/region. You can request a limit increase.

Subscription filters

1/log group. This limit cannot be changed.