Errors when using Memcache

Hi @yworld,

I think that timeout causing when accessing to Memcache server. It uses localhost/port (127.0.0.1:11211) by default. Can you confirm that Memcached installed and you are able to access it?

(When activating a persistent object cache backend, you will need a driver and the service that runs on the server)

If your memcache server is different than localhost, you can define the server address in wp-config.php file such as:

$memcached_servers = array(
    'default' => array(
        '10.10.10.20:11211'
    )
);

Please check this and let me know if you have any other questions.

How to properly exclude pages from caching(object cache):

You can’t exclude pages from the object cache (neither you should) but you can exclude it from the page cache under the advanced settings.

Cheers,

• This reply was modified 3 years, 9 months ago by Mustafa Uysal.

@m_uysl
Yes, everything is fine with Memcached installed.
wp-config.php(does not work if via socket) connection drops intermittently.
I wrote the socket directly to memcache-object-cache. I’ll see what happens next while it works.
Thank you for your attention to the question!

The plugin works fine with php 8. Add isset in a couple of places and the warnings go away. But these are trifles and take your time.

• This reply was modified 3 years, 9 months ago by Yworld.
• This reply was modified 3 years, 9 months ago by Yworld.
• This reply was modified 3 years, 9 months ago by Yworld.
• This reply was modified 3 years, 9 months ago by Yworld.

@m_uysl
Got this error again. I will be glad to any hints.

@yworld,

The socket should be supported fine with something like – https://www.ads-software.com/support/topic/memcached-with-unix-socket/#post-3939166

The plugin works fine with php 8. Add isset in a couple of places and the warnings go away. But these are trifles and take your time.

Actually, I’m not maintaining drop-ins directly, just porting them in the plugin for ease to use. If you feel comfortable, you can use https://www.ads-software.com/plugins/memcached/ too. I will check the other codes for PHP 8 compatibility for future versions.

Thanks for the feedback

Got this error again. I will be glad to any hints.

Would you mind giving a try to port instead of socket?

@m_uysl
I’ll check and write, thanks!

@m_uysl
Changed php_value max_execution_time 300. Perhaps this is the case.

No need to add port, it already parses the line in the file memcache-object-cache and adds the port 0:

$memcached_servers = array(
  'default' => array(
    'unix:///****/*****/.memcached.sock'
  )
);

I’m checking it while it works.

• This reply was modified 3 years, 9 months ago by Yworld.

@yworld,

I’m not sure if you need to change max_execution_time value, Memcached access should be fast to get benefits from it. FWIW

@m_uysl
The error occurs several times a day. In the meantime, I will check with php_value max_execution_time 300. Then I will decrease and check.

Thank you!

@m_uysl
It’s hard to explain in English, but I’ll try.

I found out that the problem is in some changes in wp himself. The scripts(memcache-object-cache.php) are old enough and don’t take this into account. Therefore, the problem arises, but so far only on all sorts of non-standard and technical pages. Maybe I’ll take a moment and try to fix this issue in the future.
In general, everything works fine and there are no special problems with normal pages.
You made a great plugin, thanks again. You don’t need to change anything.

Hi @yworld,

Thanks for the feedback. I’m marking this thread as resolved then. Feel free to re-open it or create a new thread if you need further assistance.

Cheers,