Installing Redis with Magento

It’s fairly straight forward on Debian and forks nowadays.

apt-get install redis-server
apt-get install php5-redis

Make sure redis is running

/etc/init.d/redis-server restart

Next you need to update some Magento files.
Set “Active” to true.
edit /app/etc/modules/Cm_RedisSession.xml

<config>
  <modules>
    <Cm_RedisSession>
      <active>true</active>
      <codePool>community</codePool>
    </Cm_RedisSession>
  </modules>
</config>

Now edit your /app/etc/local.xml

        <session_save><![CDATA[files]]></session_save>
        <session_save_path>
            <![CDATA[/tmp/session]]>
        </session_save_path>
        
        
        <cache>
            <backend>Cm_Cache_Backend_Redis</backend>
            <backend_options>
                <server>127.0.0.1</server> 
                <port>6379</port>
                <database>0</database>
                <password></password>
                <force_standalone>0</force_standalone>  
                <connect_retries>1</connect_retries>    
                <automatic_cleaning_factor>0</automatic_cleaning_factor> 
                <compress_data>0</compress_data>  
                <compress_tags>0</compress_tags>  
                <compress_threshold>20480</compress_threshold>  
                <compression_lib>gzip</compression_lib> 
                <persistent>1</persistent> 
            </backend_options>
        </cache>

        
        <full_page_cache>
            <backend>Cm_Cache_Backend_Redis</backend>
            <backend_options>
                <server>127.0.0.1</server> 
                <port>6379</port>
                <database>1</database>
                <password></password>
                <force_standalone>0</force_standalone>  
                <connect_retries>0</connect_retries>    
                <automatic_cleaning_factor>0</automatic_cleaning_factor> 
                
                <compress_data>0</compress_data>  
                <compress_tags>1</compress_tags>  
                <compress_threshold>20480</compress_threshold>  
                <compression_lib>gzip</compression_lib> 
                <lifetimelimit>43200</lifetimelimit> 
                <persistent>1</persistent>
            </backend_options>
        </full_page_cache>

        
        <session_save>db</session_save>
        <redis_session>                       
            <host>127.0.0.1</host>            
            <port>6379</port>
            <password></password>             
            <timeout>2.5</timeout>            
            <persistent>1</persistent>         
            <db>3</db>                        
            <compression_threshold>2048</compression_threshold>  
            <compression_lib>gzip</compression_lib>              
            <log_level>1</log_level>               
            <max_concurrency>6</max_concurrency>                 
            <break_after_frontend>5</break_after_frontend>       
            <break_after_adminhtml>30</break_after_adminhtml>
            <bot_lifetime>7200</bot_lifetime>                    
        </redis_session>

To look at the redit database 0 and select all keys

redis-cli
select 0
keys *

 

Gareth

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