[GitHub] janl opened a new issue #875: Make q configurable for peruser dbs, default to 1

[gi...@git.apache.org]

janl opened a new issue #875: Make q configurable for peruser dbs, default to 1
URL: https://github.com/apache/couchdb/issues/875
 
 
   <!--- Provide a general summary of the issue in the Title above -->
   
   At the moment, couch_peruser-managed databases are created with the default `q` value (8 is the CouchDB default, but users might change that). Now, in a peruser system, we recommend lower `q` because of all the file-descriptor overhead with larger `q` when peruser dbs are traditionally small-ish.
   
   I think it?d be great to be able to tell the peruser module to use a different default `q` for peruser-managed databases, and I suggest we make that default `1` because that?s a sensible real-world default. For users that want to benefit from higher `q` values for peruser-databases, they could enable it.
   
   I?d suggest this addition to the `couch_peruser` config section:
   
   ```diff
   [couch_peruser]
   ; If enabled, couch_peruser ensures that a private per-user database
   ; exists for each document in _users. These databases are writable only
   ; by the corresponding user. Databases are in the following form:
   ; userdb-{hex encoded username}
   enable = false
   ; If set to true and a user is deleted, the respective database gets
   ; deleted as well.
   delete_dbs = false
   +; set a default q value for peruser-created databases that is different form
   +; cluster / q
   +; +q = 1
   ```
   
 
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