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https://issues.apache.org/jira/browse/COUCHDB-807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Filipe Manana updated COUCHDB-807:
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Attachment: auth_cache_2.patch
As of revision 956886, the test case users_db.js was made "visible" once again
(not ignored by make install and therefore listed in Futon).
The previous patch was not tested against that test case and therefore it had a
bug:
- it allowed the authentication of users whose user document has conflicts
This second version of the patch fixes this issue
> authentication cache (user docs cache)
> --------------------------------------
>
> Key: COUCHDB-807
> URL: https://issues.apache.org/jira/browse/COUCHDB-807
> Project: CouchDB
> Issue Type: Improvement
> Environment: trunk
> Reporter: Filipe Manana
> Assignee: Filipe Manana
> Attachments: auth_cache.patch, auth_cache_2.patch
>
>
> Currently, in order to authenticate an incoming request, each authentication
> handler will read a user doc from the _users DB.
> By default, 3 authentication handlers are defined (default.ini), which means
> we can have 3 _users DB lookups (besides 3 DB open and close operations).
> Taking into account that this is done for each incoming HTTP request, for
> very busy servers this current behaviour might be overkill.
> The following patch adds a new gen_server which implements an authentication
> cache and keeps the _users DB open all the time, so that cache misses and
> refreshes are as quick as possible.
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