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Deleting _users renders instance unusable
Description
There is a bug on main right now where the _users DB cannot be recreated once it has been deleted, and the cluster is rendered completely inoperable until CouchDB restarts. That's the reason for d8eea48 (and, I believe, for Paul's exclusion of other tests in that module). I've called that out separately so we can revert that commit once the fix is found.
NB: the _users
DB does get recreated automatically when you restart the instance, so this issue is maybe less severe than it would otherwise seem.
Steps to Reproduce
- Start an instance building from
main
i.e. 3e05ca5 - Delete
_users
via the API - Try to make any request e.g.
_all_dbs
with server admin credentials. You'll see a 404 response
Expected Behaviour
Requests w/ server admin credentials should not be dependent on _users
, and in particular a server admin should be able to recreate the _users
DB.
Additional Context
Originally reported in #3818
Hi, is this still a problem? I can't reproduce this.
Steps I done
- Start a server, e.g (
./dev/run -a a:a
) - Delete
_users
db - curl
_all_dbs
withcurl 'http://a:a@localhost:15984/_all_dbs'
Result
curl 'http://a:a@localhost:15984/_all_dbs'
["jwtdb","jwttestdb"]
But we getting this error in the logs:
[error] 2022-06-24T10:54:13.245132Z [email protected] emulator -------- Error in process <0.1055.0> on node '[email protected]' with exit value:
{database_does_not_exist,[{mem3_shards,load_shards_from_db,"_users",[{file,"src/mem3_shards.erl"},{line,426}]},{mem3_shards,load_shards_from_disk,1,[{file,"src/mem3_shards.erl"},{line,401}]},{mem3_shards,load_shards_from_disk,2,[{file,"src/mem3_shards.erl"},{line,430}]},{mem3_shards,for_docid,3,[{file,"src/mem3_shards.erl"},{line,100}]},{fabric_doc_open,go,3,[{file,"src/fabric_doc_open.erl"},{line,39}]},{chttpd_auth_cache,ensure_auth_ddoc_exists,2,[{file,"src/chttpd_auth_cache.erl"},{line,212}]},{chttpd_auth_cache,listen_for_changes,1,[{file,"src/chttpd_auth_cache.erl"},{line,158}]}]}
Closing this, can't reproduce with latest main.