[TACHYON-16, 19] Complete missing fix for support of using fully qualified name.
TACHYON-145 Fix the mismatch to resolve local hostname for TachyonWorker.

Fix the check from argument and just error out.

Remove hostname for restart worker
Merge pull request #421 from hsaputra/complete_fqdn_patch

TACHYON-145 Fix the mismatch to resolve local hostname for TachyonWorker