When looking at the Redis Manager in the Back End, it always shows zero (o) keys for the sessions?

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The .var/session is also empty. Any idea on this?

We are running CE1.9.2.2.




1 Answer 1


do you have these files ?


is it enabled?



also use lzf for compression


Important: The Cm_RedisSession module in CE 1.8 is disabled by default. Magento disables the module to avoid unnecessary connection tries to Redis when you choose to use file, database, or a different session storage method.

To enable Magento to use Redis, perform the following tasks:

Enable the Cm_RedisSession module.
Open magento-install-dir/app/etc/modules/Cm_RedisSession.xml in a text editor.
Change the value of to true.
Save your changes to Cm_RedisSession.xml and exit the text editor.
Modify magento-install-dir/app/etc/local.xml.
For configuration information, see the sample provided with Magento in magento-install-dir/app/etc/local.xml.additional and also see the Readme (session) and Readme (back end).
Flush the Magento cache in any of the following ways:
If you have access to the file system as the owner of the files in the Magento installation directory, change to that directory and enter rm -rf var/cache.
Log in to the Admin Panel as an administrator.
Click System > Cache Management, then click Flush Magento Cache at the top of the page.

  • app/etc/modules/Cm_RedisSession.xml was set to false after upgrading from to Never thought of that. Thanks for a comprehensive answer, working just perfect now.
    – Aknot
    Nov 24, 2015 at 11:56
  • Just a note on the lzf compression, the server is running FreeBSD, and we are unsure that this lzf compression is installed on the server.
    – Aknot
    Nov 24, 2015 at 13:10
  • nevermind, you can always install it, in fact it faster than gzip
    – MagenX
    Nov 24, 2015 at 15:41

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