My question is to Magento Pros:
Can I use Varnish and Redis for FPC (Full Page Cache) at the same time?
My current setup looks like this:
SSL termination > Varnish Full Page Cache > Apache > two Magento 2 websites.
In addition to the setup above I installed Redis for Page Cache to see if I will get any benefit from it.
What confused me is this line in Redis config:
'page_cache' => array( 'backend' => 'Cm_Cache_Backend_Redis',
and here is the full code of sample Redis config I got from Magento official website:
'cache' => array( 'frontend' => array( 'default' => array( 'backend' => 'Cm_Cache_Backend_Redis', 'backend_options' => array( 'server' => '127.0.0.1', 'port' => '6379' ), ), 'page_cache' => array( 'backend' => 'Cm_Cache_Backend_Redis', 'backend_options' => array( 'server' => '127.0.0.1', 'port' => '6379', 'database' => '1', 'compress_data' => '0' ) ) ) ),
As far as I understand "page_cache" refers to Full Page Cache and I already have that in Varnish.
I checked many answers regarding Varnish, Redis and FPC in Magento 2 on this and other websites but still did not find the answer.
Question 1) Should I just remove that 'page_cache' part from the code? Or, does Varnish and Redis use different segments of FPC and I should keep it?
Question 2) Please share based on Your personal experience how well Varnish and Redis getting along in FPC in Magento 2 and would you reccomend to use both at the same time for Full Page Cache?