使用缓存连接到mod_perl下的memcached

Question

I have initialized a Cache::Memcached::Fast object in the mod_perl startup for re-use by the scripts

For eg in startup.pl

 $GLOBAL::memc = new Cache::Memcached::Fast({servers => '192.168.1.1:11211'});

I notice that when multiple calls to $GLOBAL::memc->get() happen simultaneously to the scripts the data for 1 process is sometimes copied to the results of the other

How can I make sure the memc handles are multi process-safe

This link explains a different problem , that the memcache handle dies .. but I guess this is also because of the same reason What is the best way to create persistent memcached connections under mod_perl?

Answer 1

Is Memcached get and put methods are thread safe

use cas(compare and set) function to have proper syncronization between processes/threads.