[koolba]

> You want to use an external blob-store, by default it uses its own postgres to store them. However, it also doesn't do any garbage collection, so we ran out of HD space on our cluster, causing postgres to go into read-only mode. This prevented us from pushing updates / changing any app-config settings ( ENV, Scaling, etc ). Thankfully we were hosting our own DB off-cluster or that too would have been read only.

By garbage collection are you referring to the binary blobs for built slugs?

[Titanous]

Correct. By default app slugs are stored as large objects in the built-in Postgres cluster, to allow deployment without external dependencies. For production we recommend moving to AWS S3, Google Cloud Storage, or Azure Storage.

Garbage collection of old slugs is supported though it isn't on by default (it will be in the next stable release).