parse the mfscli output and write the metrics

mfs.mtail

# usage:
#   $ mfscli -np -SIM -SIG | mtail -one_shot -progs mfs.mtail -logs -
#    OR
#   $ mtail -progs mfs.mtail -logs mfscli.log
#   $ mfscli -np -SIM -SIG > mfscli.log
#

# -SIM {{{
text metadata_servers_state by ip, version
gauge metadata_servers_cpu_all by ip, version
gauge metadata_servers_cpu_sys by ip, version
gauge metadata_servers_cpu_user by ip, version
gauge metadata_servers_last_meta_save by ip, version
gauge metadata_servers_last_save_durateion by ip, version

/^/ +
/metadata servers:\t/ +
/(?P<ip>\d+\.\d+\.\d+\.\d+)\t/ + # 
/(?P<version>[^\t]+)\t/ + #
/(?P<state>[^\t]+)\t/ + #
/(?P<ltime>[^\t]+)\t/ + #
/(?P<metadata_version>[^\t]+)\t/ + #
/(?P<metadata_delay>[^\t]+)\t/ + #
/(?P<ram_used>\d+)\t/ + #
/all:(?P<cpu_all>[^%]+)% / + #
/sys:(?P<cpu_sys>[^%]+)% / + #
/user:(?P<cpu_user>[^%]+)%\t/ + #
/(?P<last_meta_save>[^\t]+)\t/ + #
/(?P<last_save_duration>[^\t]+)\t/ + #
/(?P<last_save_status>[^\t]+)\t/ + #
/(?P<export_checksum>[^\t]+)/ + #
/$/ {
    metadata_servers_state[$ip][$version] = $state
    metadata_servers_cpu_all[$ip][$version] = $cpu_all
    metadata_servers_cpu_sys[$ip][$version] = $cpu_sys
    metadata_servers_cpu_user[$ip][$version] = $cpu_user
    metadata_servers_last_meta_save[$ip][$version] = $last_meta_save
    metadata_servers_last_save_durateion[$ip][$version] = $last_save_duration
}
# }}}

# -SIG {{{
gauge master_info_ram_used
gauge master_info_cpu_used_system
gauge master_info_cpu_used_user
gauge master_info_total_space
gauge master_info_avail_space
gauge master_info_free_space
gauge master_info_trash_space
gauge master_info_trash_files
gauge master_info_sustained_space
gauge master_info_sustained_files
gauge master_info_all_fs_objects
gauge master_info_directories
gauge master_info_files
gauge master_info_chunks
gauge master_info_all_chunk_copies
gauge master_info_regular_chunk_copies
gauge master_info_last_successful_store
gauge master_info_last_save_duration

/^/ +
/master info:\t/ {
    /RAM used\t(\d+$)/ {
        master_info_ram_used = $1
    }
    /CPU used \(system\)\t(.+$)/ {
        master_info_cpu_used_system = $1
    }
    /CPU used \(user\)\t(.+$)/ {
        master_info_cpu_used_user = $1
    }
    /total space\t(.+$)/ {
        master_info_total_space = $1
    }
    /avail space\t(.+$)/ {
        master_info_avail_space = $1
    }
    /free space\t(.+$)/ {
        master_info_free_space = $1
    }
    /trash space\t(.+$)/ {
        master_info_trash_space = $1
    }
    /trash files\t(.+$)/ {
        master_info_trash_files = $1
    }
    /sustained space\t(.+$)/ {
        master_info_sustained_space = $1
    }
    /sustained files\t(.+$)/ {
        master_info_sustained_files = $1
    }
    /all fs objects\t(.+$)/ {
        master_info_all_fs_objects = $1
    }
    /directories\t(.+$)/ {
        master_info_directories = $1
    }
    /files\t(.+$)/ {
        master_info_files = $1
    }
    /chunks\t(.+$)/ {
        master_info_chunks = $1
    }
    /all chunk copies\t(.+$)/ {
        master_info_all_chunk_copies = $1
    }
    /regular chunk copies\t(.+$)/ {
        master_info_regular_chunk_copies = $1
    }
    /last successful store\t(.+$)/ {
        master_info_last_successful_store = $1
    }
    /last save duration\t(.+$)/ {
        master_info_last_save_duration = $1
    }
}
# }}}