Please note the next on using pconnect on apache:
When using this function every apache child will keep the connection open.
Offcourse handy on not issueing a new connection on every request, but very error prone when memcached bails out for any reason.
Every time a php script is run with pconnect your script will bail out completely without any error within the log files.
Unless you are shure you run memcached with 100% uptime and your failover is 100% up, use pconnect, otherwise stay with the connect.
Maybe this is hulpfull for the ones (just like me), using pconnect and testing with exiting memcached without restarting apache.
Occured in my configuration on CentOS 5 with PHP version 5.1.6 and Apache 2.2.3
Memcache::pconnect
(PECL memcache:0.4-2.1.2)
Memcache::pconnect — Open memcached server persistent connection
Descrição
Memcache::pconnect() is similar to Memcache::connect() with the difference, that the connection it establishes is persistent. This connection is not closed after the end of script execution and by Memcache::close() function. Also you can use memcache_pconnect() function.
Parâmetros
- host
-
Point to the host where memcached is listening for connections. This parameter may also specify other transports like unix:///path/to/memcached.sock to use UNIX domain sockets, in this case port must also be set to 0.
- port
-
Point to the port where memcached is listening for connections. Set this parameter to 0 when using UNIX domain sockets.
- timeout
-
Value in seconds which will be used for connecting to the daemon. Think twice before changing the default value of 1 second - you can lose all the advantages of caching if your connection is too slow.
Valor Retornado
Retorna TRUE em caso de sucesso ou FALSE em falhas.
Exemplos
Exemplo #1 Memcache::pconnect() example
<?php
/* procedural API */
$memcache_obj = memcache_pconnect('memcache_host', 11211);
/* OO API */
$memcache_obj = new Memcache;
$memcache_obj->pconnect('memcache_host', 11211);
?>
Memcache::pconnect
02-May-2008 08:16

Memcache::increment