Frontend HTML error with Redis

Question

I'm facing some problems with the frontend generation when I enable Redis cache. Basically, the path to some static contents is wrong, just like the example below for the logo image.

<img src="//skin/frontend">

My setup is:

• Magento 1.9.1
• NGINX + PHP7-FPM
• Redis

It was running well for about 5 days, but broke today. When I disable Redis cache, the site runs well, without any problem.

Does anyone ever faced something like that?

Thanks.

Answer 1

Its due to the radis cache is not flushed correctly. You need to flush your redis cache along with magento cache.

$ redis-cli
$redis> flushall
OK
$redis> exit

Also after this clear magento cache.

After that you need to check code in local.xml for redis cache as below:

 <cache> 
 <backend>Cm_Cache_Backend_Redis</backend>
 <backend_options>
 <server>127.0.0.1</server> 
 <port>6379</port>
 <persistent></persistent>
 <database>0</database>
 <password></password> 
 <force_standalone>0</force_standalone> 
 <connect_retries>10</connect_retries> 
 <read_timeout></read_timeout> 
 <automatic_cleaning_factor>0</automatic_cleaning_factor> 
 <compress_data>1</compress_data> 
 <compress_tags>1</compress_tags> 
 <compress_threshold>20480</compress_threshold> 
 <compression_lib>gzip</compression_lib>
 </backend_options>
 </cache>

Also verify your server port on which you try to connect redis cache.

• Allysson Steve Mota Lacerda: Thanks a lot. My config is exactly the same as yours, except for connect_retries = 1. Do you have any clues on how to avoid this? Should I perform Redis cleanup regularly?
• Chirag Rajput: You need to flush cache periodically or you need to talk with your host about this problem. He can talk host about it.
• Allysson Steve Mota Lacerda: I manage the whole server, but I can't find a solution to this. I already dig the logs, but with no success.
• Chirag Rajput: I just recently solved same issue issue with cleaning radis cache and magento cache. Have you check on which port radis is working?
• Allysson Steve Mota Lacerda: Yes. The port is correct.