[root@slave /]# yum replace mysql --replace-with=mysql55
WARNING: Unable to resolve all providers: ['config(mysql)', 'libmysqlclient.so.15', 'libmysqlclient.so.15(libmysqlclient_15)', 'libmysqlclient_r.so.15', 'libmysqlclient_r.so.15(libmysqlclient_15)']
This may be normal depending on the package. Continue? [y/N] n