ejabberd@gentoo.org cache_tab application is intended to proxy back-end operations for Key-Value insert, lookup and delete and maintain a cache of those Key-Values in-memory, to save back-end operations. Operations are intended to be atomic between back-end and cache tables. The lifetime of the cache object and the max size of the cache can be defined as table parameters to limit the size of the in-memory tables. processone/cache_tab