check_mk插件 redis

/usr/lib/check_mk_agent/plugins/mk_redis

#!/bin/bash

echo '<<<redis>>>'
hosts=$(netstat -nlp -t |grep redis-server|awk '{print $4}')

for host in $hosts;
do
  ip=$(echo $host|cut -d ':' -f1)
  port=$(echo $host|cut -d ':' -f2)
  echo "start $ip:$port"
  redis-cli -p $port info |egrep '^redis_version|^redis_mode|^process_id|^uptime_in_days|^rdb_last_save_time|^rdb_changes_since_last_save|^master_link_down_since|^role|^connected_slaves|^master_last_io_seconds_ago|^blocked_clients|^connected_clients|^rejected_connections|^blocked_clients|^connected_clients|^rejected_connections|^instantaneous_ops_per_sec|^keyspace_hits|^keyspace_misses|^evicted_keys|^used_memory:|^mem_fragmentation_ratio'|awk -F ':' '{print $1,$2}'
  echo "end $ip:$port"
done

/opt/omd/sites/test/share/check_mk/checks/redis

'''
start 127.0.0.1:6381
redis_version 2.8.19
redis_mode standalone
process_id 13675
uptime_in_days 5
rdb_changes_since_last_save 0
rdb_last_save_time 1490268431
role master
connected_slaves 0

connected_clients 1
blocked_clients 0
rejected_connections 0
evicted_keys 0
instantaneous_ops_per_sec 0


keyspace_hits 0
keyspace_misses 0

used_memory 502624

mem_fragmentation_ratio 11.67
end 127.0.0.1:6381
'''

import time

def inventory_redis_info(info):
    inventory = []
    for line in info:
        if line[0] == 'start':
            inventory.append((line[1], None))
    return inventory
 
def inventory_redis_stat(info):
    inventory = []
    for line in info:
        if line[0] == 'start':
            inventory.append((line[1], None))
    return inventory

def check_redis_info(item, params, info):
    message = []
    flag = False
    for line in info:
        if line[0] == 'end' and line[1] == item:
            break

        elif line[0] == 'start' and line[1] == item:
            flag = True
        
        elif flag:
            if line[0] in ['redis_version', 'redis_mode', 'process_id', 'uptime_in_days', 'role', 'connected_slaves', 'rdb_changes_since_last_save']:
                message.append(line[0]+': '+line[1])
            elif line[0] in ['rdb_last_save_time']:
                message.append(line[0]+': '+ time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime(int(line[1]))))

    return 0, ', '.join(message)

def check_redis_stat(item, params, info):
    message = []
    perfdata = []
    flag = False

    for line in info:
        if line[0] == 'end' and line[1] == item:
            break

        elif line[0] == 'start' and line[1] == item:
            flag = True
        
        elif flag:
            if line[0] in ['connected_clients', 'blocked_clients', 'rejected_connections', 'evicted_keys', 'instantaneous_ops_per_sec', 'used_memory']: 
                message.append(line[0]+': '+line[1])
                perfdata.append((line[0], int(line[1]), None, None, 0, None))

            elif line[0] in ['mem_fragmentation_ratio']: 
                message.append(line[0]+': '+line[1])
                perfdata.append((line[0], float(line[1]), None, None, 0, 100))

            elif line[0] in ['keyspace_hits']: 
                message.append(line[0]+': '+line[1])
                perfdata.append((line[0], int(line[1]), None, None, 0, None))
                hits = int(line[1])

            elif line[0] in ['keyspace_misses']: 
                message.append(line[0]+': '+line[1])
                perfdata.append((line[0], int(line[1]), None, None, 0, None))
                misses = int(line[1])
    if (hits+misses) == 0:
        hit_rate = 0
    else:          
        hit_rate = round(hits/(hits+misses)*1.0, 2)

    message.append('hit_rate: %.2f' % hit_rate)
    perfdata.append(('hit_rate', hit_rate*100, None, None, 0, 100))   

    return 0, ', '.join(message), perfdata

check_info['redis.info'] = {
    'check_function':            check_redis_info,
    'inventory_function':        inventory_redis_info,
    'service_description':       'redis_info %s',
}

check_info['redis.stat'] = {
    'check_function':            check_redis_stat,
    'inventory_function':        inventory_redis_stat,
    'service_description':       'redis_stat %s',
    'has_perfdata':              True,
}

/opt/omd/sites/test/share/check_mk/pnp-templates/check_mk-redis.stat.php

<?php

# clients
$opt[1] = "-t "Clients" -v "Number" -l 0 ";
$def[1] = "";

$def[1] .= "DEF:v1=$RRDFILE[1]:$DS[1]:MAX ";
$def[1] .= "LINE2:v1#ff4000:"connected_clients" ";
$def[1] .= "GPRINT:v1:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v1:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v1:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v1:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v2=$RRDFILE[2]:$DS[2]:MAX ";
$def[1] .= "LINE2:v2#a00000:"blocked_clients" ";
$def[1] .= "GPRINT:v2:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v2:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v2:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v2:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v6=$RRDFILE[6]:$DS[6]:MAX ";
$def[1] .= "LINE2:v6#00f040:"rejected_connections" ";
$def[1] .= "GPRINT:v6:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v6:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v6:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v6:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v7=$RRDFILE[7]:$DS[7]:MAX ";
$def[1] .= "LINE2:v7#00b0b0:"evicted_keys" ";
$def[1] .= "GPRINT:v7:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v7:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v7:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v7:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v8=$RRDFILE[8]:$DS[8]:MAX ";
$def[1] .= "LINE2:v8#c060ff:"keyspace_hits" ";
$def[1] .= "GPRINT:v8:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v8:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v8:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v8:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v9=$RRDFILE[9]:$DS[9]:MAX ";
$def[1] .= "LINE2:v9#f000f0:"keyspace_misses" ";
$def[1] .= "GPRINT:v9:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v9:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v9:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v9:MIN:"min :%5.0lf" ";

$def[1] .= "DEF:v5=$RRDFILE[5]:$DS[5]:MAX ";
$def[1] .= "LINE2:v5#ff4000:"instantaneous_ops_per_sec" ";
$def[1] .= "GPRINT:v5:LAST:"last :%5.0lf" ";
$def[1] .= "GPRINT:v5:AVERAGE:"avg :%5.0lf" ";
$def[1] .= "GPRINT:v5:MAX:"max :%5.0lf" ";
$def[1] .= "GPRINT:v5:MIN:"min :%5.0lf" ";

# performance
$opt[2] = "-t "Performance" -v "(%)" -l 0 ";
$def[2] = "";

$def[2] .= "DEF:v4=$RRDFILE[4]:$DS[4]:MAX ";
$def[2] .= "LINE2:v4#a00000:"mem_fragmentation_ratio" ";
$def[2] .= "GPRINT:v4:LAST:"last :%5.2lf" ";
$def[2] .= "GPRINT:v4:AVERAGE:"avg :%5.2lf" ";
$def[2] .= "GPRINT:v4:MAX:"max :%5.2lf" ";
$def[2] .= "GPRINT:v4:MIN:"min :%5.2lf" ";

$def[2] .= "DEF:v10=$RRDFILE[10]:$DS[10]:MAX ";
$def[2] .= "LINE2:v10#00f040:"hit_rate" ";
$def[2] .= "GPRINT:v10:LAST:"last :%5.2lf" ";
$def[2] .= "GPRINT:v10:AVERAGE:"avg :%5.2lf" ";
$def[2] .= "GPRINT:v10:MAX:"max :%5.2lf" ";
$def[2] .= "GPRINT:v10:MIN:"min :%5.2lf" ";

# memory
$opt[3] = "-t "Use Memory" -v "Bytes" -l 0 ";
$def[3] = "";

$def[3] .= "DEF:v3=$RRDFILE[3]:$DS[3]:MAX ";
$def[3] .= "AREA:v3#FF6666:"use_memory" ";
$def[3] .= "GPRINT:v3:LAST:"last :%5.0lf" ";
$def[3] .= "GPRINT:v3:AVERAGE:"avg :%5.0lf" ";
$def[3] .= "GPRINT:v3:MAX:"max :%5.0lf" ";
$def[3] .= "GPRINT:v3:MIN:"min :%5.0lf" ";
?>