Ticket #574 - problems with dbcachesize disk space calculation
https://fedorahosted.org/389/ticket/574
Reviewed by: mreynolds (Thanks!)
Branch: master
Fix Description: 50% overhead for dbcachesize is too much - use 10%.
Based on empirical observations on RHEL 6.4 64-bit bdb 4.7.
There seems to be no way to ask bdb "Given a dbcachesize, what will be the
total size of all of the region files?".
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: no