I've also noticed that with hosts cache enabled that lookups for the same name seem to always be reported as missing; here's the output of subsequent "ping gasolinux" commands:
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETFDHST
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: provide access to FD 9, for hosts
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETHOSTBYNAME (gasolinux)
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: Haven't found "gasolinux" in hosts cache!
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETHOSTBYADDR (192.168.99.14)
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: Haven't found "192.168.99.14" in hosts cache!
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETFDHST
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: provide access to FD 9, for hosts
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETHOSTBYNAME (gasolinux)
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: Haven't found "gasolinux" in hosts cache!
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETHOSTBYADDR (192.168.99.14)
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: Haven't found "192.168.99.14" in hosts cache!
I've also noticed that with hosts cache enabled that lookups for the same name seem to always be reported as missing; here's the output of subsequent "ping gasolinux" commands:
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETFDHST
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: provide access to FD 9, for hosts
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETHOSTBYNAME (gasolinux)
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: Haven't found "gasolinux" in hosts cache!
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3642
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: GETHOSTBYADDR (192.168.99.14)
Wed 17 Dec 2014 11:42:02 AM BRST - 3627: Haven't found "192.168.99.14" in hosts cache!
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETFDHST
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: provide access to FD 9, for hosts
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETHOSTBYNAME (gasolinux)
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: Haven't found "gasolinux" in hosts cache!
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: handle_request: request received (Version = 2) from PID 3643
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: GETHOSTBYADDR (192.168.99.14)
Wed 17 Dec 2014 11:42:09 AM BRST - 3627: Haven't found "192.168.99.14" in hosts cache!