Drop-in MySQL replacement This formula is keg-only.
Formula was removed
Last version was
percona-server@5.5 requires the following formulae to be installed:
cmake 3.10.3 Cross-platform make
readline 7.0.3_1 Library for command-line editing
pidof 0.1.4 Display the PID number for a given process name
openssl 1.0.2n SSL/TLS cryptography library

Recent formula history

FX Coudert percona-server@5.5: remove
ilovezfs percona-server@5.5 5.5.58-38.10
ilovezfs Use “squiggly” heredocs.
Cory Ringdahl percona-server@5.5: specify plugin directory
ilovezfs percona-server@5.5 5.5.57-38.9

Formula code at GitHub