Question Cache Operator Back to None

[semprot]

After running by some time, my cache operator selection is changed from Redis to None.

I remember that this happened once, when i used 3.1.0 too.

What are causing it?

I remember you said that it is something to prevent caching error?

Meanwhile i can't see anythingin my XF server error log.

 

[Fillip H.]

Yup, this will happen if the connection fails for whatever reason. It intentionally doesn't trigger an error in the log, but I'll look into adding some debug output in the future

 

[semprot]

Yup, this will happen if the connection fails for whatever reason. It intentionally doesn't trigger an error in the log, but I'll look into adding some debug output in the future

I notice that if i enabled full page guest caching, it switched to None faster.
I wonder if there was a load by redis that caused timeout between PHP & redis.

 

[Fillip H.]

I wonder if Redis will throw up a failure message when the cache is full...

Can you try installing the Redis admin interface and observing the values there, seeing if you are running out of memory?

 

[semprot]

I wonder if Redis will throw up a failure message when the cache is full...

Can you try installing the Redis admin interface and observing the values there, seeing if you are running out of memory?

I have installed it.
According to the admin interface, "Used Memory Peak" only less than 400 MB.
I still have more than 100 GB free memory.

 

[Fillip H.]

You have over 100 GB of RAM?

 

[semprot]

You have over 100 GB of RAM?

Yes. I sent you a PM regarding the URL of my redis admin info

 

[Fillip H.]

I can't seem to find the info in the admin interface, is there no list of cache hit count / cache full count etc like in XCache / APC?

 

[Nirjonadda]

I wonder if Redis will throw up a failure message when the cache is full...

Can you try installing the Redis admin interface and observing the values there, seeing if you are running out of memory?

How to installing the Redis admin interface?

 

[semprot]

How to installing the Redis admin interface?

I see there are some redis admin scripts.

I use this one :
GitHub - sasanrose/phpredmin: Yet another web interface for Redis

Installation is just uploading all files to your webserver, then go to "Basic Authentication" guide in that URL.

 

[Nirjonadda]

I see there are some redis admin scripts.

I use this one :
GitHub - sasanrose/phpredmin: Yet another web interface for Redis

Installation is just uploading all files to your webserver, then go to "Basic Authentication" guide in that URL.

Its not working , just showing Index of /redis : https://s17.postimg.org/kdqrns25b/Screen_Shot00215.png

 

[semprot]

Its not working , just showing Index of /redis : https://s17.postimg.org/kdqrns25b/Screen_Shot00215.png

Sorry i forget to tell you to open the "/public/" directory in your browser

 

[Nirjonadda]

Sorry i forget to tell you to open the "/public/" directory in your browser

Thanks, Its working.

 

[semprot]

I can't seem to find the info in the admin interface, is there no list of cache hit count / cache full count etc like in XCache / APC?

Sorry i missed your reply and didn't notice it.

I am not sure about list of cache hit count.

When i click "Info" on top navigation, there is an info page, containing information about :

• Keyspace Hits
• Keyspace Misses
• Expired Keys

Maybe that is the stats?

And I think there is no max memory setting of redis (such as in APC / Xcache), i could be wrong anyway. This is my first time using redis.

 

[Fillip H.]

I'll look into adding some debug output as to why Redis failed to connect in a future update

 

[semprot]

I'll look into adding some debug output as to why Redis failed to connect in a future update

It still happens randomly until now.
I home there will be a log in the admin (such as user change log / moderator log), in future release.
So we can analyze why the operator is set to none

 

[Fillip H.]

We don't have a vB demo board and the XF demo board generator requires a valid XF license, but if you have one you can request it from here: https://www.dragonbyte-tech.com/info/xfdemo/

 

[semprot]

We don't have a vB demo board and the XF demo board generator requires a valid XF license, but if you have one you can request it from here: Request XenForo Demo Board - DragonByte® Technologies | Premium Mods & Addons

I think you replied the wrong thread?

 

[Fillip H.]

I did indeed, sorry about that

 

[semprot]

try
		{
			// Create the cacher based on Options
			$cacher = DBTech_Optimise_Operator_Abstract::create('DBTech_Optimise_Operator_' . $options->dbtech_optimise_cache_operator, [
				'cachePrefix' => $options->dbtech_optimise_cache_prefix,
				'cacheTtl' => ($ttl ? $ttl : $options->dbtech_optimise_cache_ttl)
			]);

			// Try to connect
			$cacher->connect();
		}
		catch (XenForo_Exception $e)
		{
			// Revert to the "None" option
			self::$_hasFailed = true;

			// Revert to "None" operator if we failed to connect, prevent the forum from dying with a fatal error
			XenForo_Model::create('XenForo_Model_Option')->updateOptions(['dbtech_optimise_cache_operator' => 'None']);

			// Create the default cacher
			$cacher = DBTech_Optimise_Operator_Abstract::create('DBTech_Optimise_Operator_None', [
				'cachePrefix' => $options->dbtech_optimise_cache_prefix,
				'cacheTtl' => ($ttl ? $ttl : $options->dbtech_optimise_cache_ttl)
			]);
		}

Is there any way to record xenforo exception to xenforo admin server error log?