Title: #390: NSS: Add option to disable memcache
@lslebodn, I think your one-liner patch (together with a comment in the memcache_timeout
man page entry) should go into upstream as well. Because currently setting
'memcache_timeout = 0' will make them memcache unusable but still use disk and
memory space, so it is somewhat ill-defined. Your patch will make this clear and defined
Neverless I'd like to have the option to configure the memory cache size as well.
See the full comment at https://github.com/SSSD/sssd/pull/390#issuecomment-334448236