How do set REDIS with APC in magento (local.xml)?

I have to put twice the "< backend >"?

My code looks like this:


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  • donot use APC, install ZendOpcache, and keep it only for php, and use Redis only for cache. – user2857 Jun 5 '15 at 7:32

You cant set both as cache backend. But you could chose one as normal backend, and one as slow backend where you currently have file.

I think redis was suited as slow one, but iam not sure about this.

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APC is great for OPCode, terrible for data key pair storage. APC should be working as-is with no need to add it to local.xml for handling the cache of PHP's OPcode.

Only one backend handler is allowed, while slow/fast backend types would fall under this branch in the xml tree.

    <session_save><![CDATA[]]></session_save> <!-- db / memcache / empty=files -->
    <session_save_path><![CDATA[]]></session_save_path><!-- e.g. for memcache session save handler tcp:// -->
    <session_cache_limiter><![CDATA[]]></session_cache_limiter><!-- see http://php.net/manual/en/function.session-cache-limiter.php#82174 for possible values -->
        <backend></backend><!-- apc / memcached / xcache / empty=file -->
        <slow_backend></slow_backend> <!-- database / file (default) - used for 2 levels cache setup, necessary for all shared memory storages -->
        <slow_backend_store_data></slow_backend_store_data> <!-- 1 / 0 (default) - used for 2 levels cache setup, sets whether store data in db slow cache backend -->
        <auto_refresh_fast_cache></auto_refresh_fast_cache> <!-- 1 / 0 (default) - used for 2 levels cache setup, sets whether refresh data in fast cache backend -->
        <memcached><!-- memcached cache backend related config -->
            <servers><!-- any number of server nodes can be included -->

    <!-- example of two level cache setup with slow backend at files. -->

    <remote_addr_headers><!-- list headers that contain real client IP if webserver is behind a reverse proxy -->

A good example local.xml from:

Further reading:

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