[COUCHDB-2422] Cassim and underscored databases

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: Database Core
• Assignee: Alexander Shorin
• Reporter: Alexander Shorin
• Created: 31/Oct/14 10:39
• Updated: 27/Oct/15 21:51
• Resolved: 20/Mar/15 18:15

Description

1. Run dev cluster

2. Create _users database

http PUT http://localhost:15984/_users
HTTP/1.1 201 Created
Cache-Control: must-revalidate
Content-Length: 12
Content-Type: text/plain; charset=utf-8
Date: Fri, 31 Oct 2014 10:36:19 GMT
Location: http://localhost:15984/_users
Server: CouchDB/9938fac (Erlang OTP/17)
X-Couch-Request-ID: f273be89
X-CouchDB-Body-Time: 0

{"ok":true}

3. Create cassim database

http PUT http://localhost:15984/cassim
HTTP/1.1 201 Created
Cache-Control: must-revalidate
Content-Length: 12
Content-Type: text/plain; charset=utf-8
Date: Fri, 31 Oct 2014 10:37:06 GMT
Location: http://localhost:15984/cassim
Server: CouchDB/9938fac (Erlang OTP/17)
X-Couch-Request-ID: 8bdcc974
X-CouchDB-Body-Time: 0

{"ok":true}

4. Try to access _users database:

http http://localhost:15984/_users
HTTP/1.1 400 Bad Request
Cache-Control: must-revalidate
Content-Length: 89
Content-Type: text/plain; charset=utf-8
Date: Fri, 31 Oct 2014 10:34:22 GMT
Server: CouchDB/9938fac (Erlang OTP/17)
X-Couch-Request-ID: e9f4a5b3
X-CouchDB-Body-Time: 0

{"error":"bad_request","reason":"Only reserved document ids may start with underscore."}

Oh wait...? This is because cassim creates documents with database name as the prefix and for _users and _replicator it clashes with restrictions about document names.

Issue Links

• is duplicated by: COUCHDB-2424 Shard maps for reserved database names cannot be updated