Redis
This page documents how a Redis instance behaves on Runsite — versions, persistence, lifecycle and the two endpoints it exposes. Typical uses are caching, session storage, queues, rate limiting and pub/sub. The public endpoint is TLS-encrypted; the internal one never leaves the platform.
Looking for plans or pricing?
Plans, memory sizes, free-tier limits and pricing are not documented here — they live on the managed Redis hosting page. This section covers how the instance works once it is running.
Supported versions
Section titled “Supported versions”| Version | Notes |
|---|---|
| 6 | Older. |
| 7 | Default. Recommended for new instances. |
| 8 | Latest. |
Pick the major version when you create the instance.
Creating an instance
Section titled “Creating an instance”From the dashboard: pick a project, choose the major version and the memory plan, hit create. Provisioning takes a few seconds.
When the instance is ready, the dashboard shows the password and both connection URLs. Copy them now — the password is shown once and can’t be retrieved later. If you lose it, you’ll need to delete and recreate the instance.
Memory
Section titled “Memory”Memory is set at creation time based on the plan you pick. Memory size is fixed for the life of the instance — to change it, create a new instance on a different plan and migrate your keys.
Lifecycle
Section titled “Lifecycle”| Action | What it does |
|---|---|
| Start | Bring a stopped instance back online. |
| Stop | Shut the instance down. Compute is released; data is preserved. |
| Delete | Remove the instance permanently. There is no undo — make a backup first. |
Can I change the Redis version or memory size after creating the instance?
Section titled “Can I change the Redis version or memory size after creating the instance?”No. Both the major version and the memory size are fixed for the life of the instance. To change either, create a new instance on the plan you want and migrate your keys.
Should I use the internal or external connection URL?
Section titled “Should I use the internal or external connection URL?”Use the internal URL from other Runsite services in the same project — it’s faster and stays off the public internet. Use the external URL, which is TLS-encrypted, from anywhere else. See Connecting.
Is my data kept when I stop the instance?
Section titled “Is my data kept when I stop the instance?”Yes. Stopping releases compute but preserves data. Click Start to bring it back online.
I lost my Redis password — can I get it back?
Section titled “I lost my Redis password — can I get it back?”No. The password is shown once when the instance is created and can’t be retrieved later. If you lose it, delete and recreate the instance.
Can I use Redis as a primary database?
Section titled “Can I use Redis as a primary database?”Redis is in-memory and best for caching, sessions, queues, rate limiting and pub/sub. For durable relational data, use PostgreSQL instead.
Where to next
Section titled “Where to next”- Connecting — internal vs external URLs and how to use them.
- Dashboard — what each tab does.
- Backups — on-demand snapshots and restore.
Need a relational database?
If your data is rows and tables instead of keys and values, use PostgreSQL instead.