4.5.3 Vbulletin gets 500 error when i enable memcached

[Ctrenks]

Moved to a new server to gain first byte speed and one main thing was to use memcached. Server has it runnning (siteground cloud), when I uncomment the config file for memcached all pages aere 500 errors yet not seeing anything in the error logs?

Any ideas are welcome.

[Wayne Luke]

There is no vBulletin 4.5.3. The last version of vBulletin 4.X is vBulletin 4.2.5.

To troubleshoot the problem, you have to verify that the memcached (note the d at the end) library exists within PHP. To do this you first need to edit your /includes/config.php so the memcache section is commented out.

/* #### MEMCACHE SETTINGS #### */
/*$config['Misc']['memcacheServers'] = array(
    array(
        'server' => '127.0.0.1',
        'port' => 11211
    ),
); */
//$config['Misc']['memcacheRetry'] = 15; // Retry time in seconds.
//$config['Misc']['memcacheTimeout'] = 1; // Connect timeout in seconds.
//$config['Misc']['memcachePersistent'] = true; // Persistent connections.

Next, log into your AdminCP and scroll to Maintenance. Off the Maintenance section menu select "View PHP Info". Make sure memcached (note the D) is listed as a section here.

If it is not listed the instructions to install are here:
https://www.php.net/manual/en/memcac...stallation.php

The server daemon memcached also needs to be installed but you said it might already be available.

[Ctrenks]

Sorry yes 4.5.2

and when i uncomment out the memcached settins is when i get the error, port is correct


memcached

Version	2.2.0
libmemcached version	1.0.18
SASL support	yes
Session support	yes
igbinary support	no
json support	no
msgpack support	no

memcached.compression_factor	1.3	1.3
memcached.compression_threshold	2000	2000
memcached.compression_type	fastlz	fastlz
memcached.serializer	php	php
memcached.sess_binary	0	0
memcached.sess_connect_timeout	1000	1000
memcached.sess_consistent_hash	0	0
memcached.sess_lock_expire	0	0
memcached.sess_lock_max_wait	0	0
memcached.sess_lock_wait	150000	150000
memcached.sess_locking	1	1
memcached.sess_number_of_replicas	0	0
memcached.sess_prefix	memc.sess.key.	memc.sess.key.
memcached.sess_randomize_replica_read	0	0
memcached.sess_remove_failed	0	0
memcached.sess_sasl_password	no value	no value
memcached.sess_sasl_username	no value	no value
memcached.store_retry_count	2	2
memcached.use_sasl	0	0

[Ctrenks]

here aere my config settings (commented out)

/*
$config['Datastore']['class'] = 'vB_Datastore_Memcached';
$i = 0;
// First Server
$i++;
$config['Misc']['memcacheserver'][$i] = '127.0.0.1';
$config['Misc']['memcacheport'][$i] = 11211;
$config['Misc']['memcachepersistent'][$i] = true;
$config['Misc']['memcacheweight'][$i] = 1;
$config['Misc']['memcachetimeout'][$i] = 1;
$config['Misc']['memcacheretry_interval'][$i] = 15;
*/

[Ctrenks]

I see my seetings are older from config, i used your memcached settings and no errors, is this all that is needed to have memcached enabled

[Wayne Luke]

For vBulletin 4.X, yes. It doesn't actually cache much information so the benefits are limited.

[Ctrenks]

OK ty, chasing trying to lower the first byte times but appears vbulleting is pretty bloated on loading