[wp-hackers] WordPress, load balancer and domain names

Dino Termini dino at duechiacchiere.it
Wed Jul 23 19:26:52 UTC 2014

Hi Filippo, I guess we can talk off-list about your setup. WP_HOME is 
definitely a good start, but how do you filter the content? With a 
plugin that detects on what server it's running?

Thank you for your quick reply!

On 7/23/14, 3:23 PM, Filippo Pisano wrote:
> Hi Dino,
> You can set WP_HOME and WP_SITEURL accordingly to the server Url inside the
> wp-config.php file of each server.
> We have a similar enviroment and using this approach helped us solving the
> same issue.
> Unfortunately all links and images contained inside posts' content will
> remain the same but you can always filter the content.
> Il 23/lug/2014 21:17 "Dino Termini" <dino at duechiacchiere.it> ha scritto:
>> Hi list,
>> I have a question for those who have dealt with MySQL replication. We
>> would like to create an environment with three servers: 1 authoring server
>> behind the firewall (server1.example.com), that only internal users can
>> access, and 2 public-facing servers behind a load balancer (
>> server2.example.com and server3.example.com, with load balancer
>> responding to server.example.com). Filesystems are synchronized via NFS,
>> and MySQL is set as master on the authoring and as slave on the two public
>> servers. In order to avoid issues (apparently WP caches oEmbeds and other
>> stuff when rendering pages), we set the slaves as read-only.
>> Now, content editors who access the authoring server, will type
>> server1.example.com, which is also the address configured in WordPress.
>> Unfortunately those URLs get copied over to the slaves. And that's were
>> problems start to arise. Have you ever dealt with a similar situation? How
>> did you solve the problem, or what would you recommend we change or adapt
>> to implement this architecture?
>> Thank you,
>> Dino
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