I have posted a couple of important updates to MongoSession (a PHP MongoDB Session Handler) that I’d like to share with you.

1. I have removed the secondary indexed id field which should speed up operations as well as reduce the storage requirements. This is most beneficial for larger sites supporting a high rate of concurrent users.
2. I recently added two boolean constants, FSYNC and SAFE. These two constants are documented on the MongoCollection::update() page and can be turned on to ensure your session data is actually written to the server. Please note that turning these variables on will cause a performance hit to the overall session handling.
3. Both the garbage collection and session write methods have been updated to perform atomic operations. This was done as a measure to reduce the risk of race conditions as mentioned on the project page.
4. A bug was fixed in the read method where an extra line of code existed for no reason.
5. A bug in the garbage collector was fixed. Update previously only updated a single result as opposed to the whole set of matches.

Click here to be taken to the project page.

Questions, comments, forks, and bugfixes are welcome.