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diff --git a/rust/README.md b/rust/README.md index 8c742cb1..a6873345 100644 --- a/rust/README.md +++ b/rust/README.md @@ -63,6 +63,36 @@ on a bare server, as root: cd /srv/fatcat/fatcat/rust cargo run +### Dumps and Backups + +There are a few different databaase dump formats folks might want: + +- raw native database backups, for disaster recovery (would include + volatile/unsupported schema details, user API credentials, full history, + in-process edits, comments, etc) +- a sanitized version of the above: roughly per-table dumps of the full state + of the database. Could use per-table SQL expressions with sub-queries to pull + in small tables ("partial transform") and export JSON for each table; would + be extra work to maintain, so not pursuing for now. +- full history, full public schema exports, in a form that might be used to + mirror or enitrely fork the project. Propose supplying the full "changelog" + in API schema format, in a single file to capture all entity history, without + "hydrating" any inter-entity references. Rely on separate dumps of + non-entity, non-versioned tables (editors, abstracts, etc). Note that a + variant of this could use the public interface, in particular to do + incremental updates (though that wouldn't capture schema changes). +- transformed exports of the current state of the database (aka, without + history). Useful for data analysis, search engines, etc. Propose supplying + just the Release table in a fully "hydrated" state to start. Unclear if + should be on a work or release basis; will go with release for now. Harder to + do using public interface because of the need for transaction locking. + +Backing up the entire database using `pg_dump`, with parallelism 1 (use more on +larger machine with fast disks; try 4 or 8?), assuming the database name is +'fatcat', and the current user has access: + + pg_dump -j1 -Fd -f test-dump fatcat + ### Special Tricks Regenerate API schemas (this will, as a side-effect, also run `cargo fmt` on |