Graylog: Choosing a rotation strategy

This documentation is part of the Handle retention guide. View the full guide here: How to configure log retention.

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• Rely on an unlimited, dedicated SMTP email server included with your service.
• Apply updates effortlessly with a single click, with no manual intervention needed.
• Use a custom domain name secured by HTTPS (for example, https://logs.your-company.com), giving your team secure, direct access.
• Experience strong performance and security on a private, dedicated infrastructure with no shared resources or noisy neighbors.

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Graylog provides three retention strategies:

1. "Index time" defines the maximum duration for which messages are kept in each index, for example, 14 days per index.
2. "Index message count" sets the maximum number of messages per index, for example, 20 million messages per index.
3. "Index size" limits the maximum size of an index, for example, 40 GB per index.

You can select one of these strategies based on your specific requirements. For instance, selecting "Index time" helps ensure that you always have logs from the past X days.

Be careful to estimate your disk storage needs accurately.

For example, if you store 1 GB of logs per day and decide to keep logs for the past 365 days, you will need 365 GB of disk space. Remember that extra operating space must also be reserved (see below).