Magento CouchDB Session Handler

This module adds the possibility to use a CouchDB server for storing Magento sessions.

It has the following benefits:

• MVCC allows for consistency without locking
• Network access with replication enables failover and makes scaling effortless
• Persistence
• show and list functions exposes and easy to use external interface for session validation, useful for single sign-on and paywall implementations

Configuration

• Install CouchDB
• Install this module in your Magento store
• Make sure that your local.xml is set up to use "db" as session_save

<session_save><![CDATA[db]]></session_save>

• Flush the Magento config cache

If CouchDB listens on IP 127.0.0.1 and the default port without a username or password, this should be enough. The reason we use "db" is that there is no other way to add a custom session management class than to override the MySQL one at the moment.

If your setup varies from this, the following options are available:

<session_save><![CDATA[db]]></session_save>
<couchdb_session>
	<!-- Defaults to "127.0.0.1" -->
    <hostname></hostname>
	<!-- Defaults to "5984" -->
    <port></port>
	<!-- Empty default -->
    <username></username>
	<!-- Empty default -->
    <password></password>
	<!-- Defaults to "magento_session", change this if you have one CouchDB for multiple Magento stores -->
    <databaseName></databaseName>
</couchdb_session>

Notes

The module doesn't include any means of migrating an existing session storage into CouchDB, meaning that once enabled, every user will need to get new sessions.

License

This project is licensed under the 4-clause BSD License, see LICENSE