利用Zabbix监控MongoDB
一、首先介绍mongodb采集到的数据含义:
1、状态采集命令:
>db.serverStatus();
2、输出内容:
{
"host" : "localhost",
"version" : "2.2.6",
"process" : "mongod",
"pid" : 55123,
"uptime" : 18654536,
"uptimeMillis" : NumberLong(""),
"uptimeEstimate" : 18407100,
"localTime" : ISODate("2017-07-10T08:06:17.628Z"),
"locks" : {
"." : {
"timeLockedMicros" : {
"R" : NumberLong(1203), #所有库全局读锁总微秒数
"W" : NumberLong(1607) #所有全库局写锁总微妙数
},
"timeAcquiringMicros" : {
"R" : NumberLong(168), #所有库全局读锁的锁等待总微秒数
"W" : NumberLong(41) #所有库全局写锁的锁等待总微秒数
}
},
"admin" : {
"timeLockedMicros" : { },
"timeAcquiringMicros" : { }
},
"local" : {
"timeLockedMicros" : {
"r" : NumberLong(4118711),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(2191541),
"w" : NumberLong(0)
}
},
"org_center" : {
"timeLockedMicros" : {
"r" : NumberLong(""),
"w" : NumberLong("")
},
"timeAcquiringMicros" : {
"r" : NumberLong(352664878),
"w" : NumberLong("")
}
},
"org_centr" : {
"timeLockedMicros" : {
"r" : NumberLong(124236),
"w" : NumberLong(180)
},
"timeAcquiringMicros" : {
"r" : NumberLong(10119),
"w" : NumberLong(10)
}
},
"shopProduct" : {
"timeLockedMicros" : {
"r" : NumberLong(134997),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(14241),
"w" : NumberLong(0)
}
},
"tb_shop" : {
"timeLockedMicros" : {
"r" : NumberLong(1405192),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(146122),
"w" : NumberLong(0)
}
},
"test" : {
"timeLockedMicros" : {
"r" : NumberLong(3090622),
"w" : NumberLong(2170)
},
"timeAcquiringMicros" : {
"r" : NumberLong(414040),
"w" : NumberLong(130)
}
}
},
"globalLock" : {
"totalTime" : NumberLong(""),
"lockTime" : NumberLong(1607),
"currentQueue" : {
"total" : 0,
"readers" : 0,
"writers" : 0
},
"activeClients" : {
"total" : 0,
"readers" : 0,
"writers" : 0
}
},
"mem" : {
"bits" : 64, #64位操作系统
"resident" : 238, #共占用屋里内存M
"virtual" : 448, #占用虚拟内存
"supported" : true,
"mapped" : 256 #映射内存
},
"connections" : {
"current" : 16, #当前活跃连接数
"available" : 803 #剩余空闲连接数
},
"extra_info" : {
"note" : "fields vary by platform",
"heap_usage_bytes" : 30607592,
"page_faults" : 200
},
"indexCounters" : {
"btree" : {
"accesses" : 24067164, #索引被访问次数
"hits" : 24067164, #索引命中量
"misses" : 0,
"resets" : 0,
"missRatio" : 0
}
},
"backgroundFlushing" : {
"flushes" : 310905, #数据库刷新写到磁盘的次数
"total_ms" : 214212, #数据库刷新数据到磁盘花费的微秒数
"average_ms" : 0.688995030636368, #执行单次刷新花费的平均微秒数
"last_ms" : 5,
"last_finished" : ISODate("2017-07-10T08:05:26.598Z")
},
"cursors" : {
"totalOpen" : 0,
"clientCursors_size" : 0,
"timedOut" : 60
},
"network" : {
"bytesIn" : 5150258135, #流入数据库总量
"bytesOut" : 10535203727, #从数据库流出总量
"numRequests" : 32203604 #数据库总请求数
},
"opcounters" : {
"insert" : 6010564, #总insert数据量
"query" : 7507450, #总query数据量
"update" : 573085, #总update数据量
"delete" : 2563194, #总delete数据量
"getmore" : 308, #游标调用的getMore总次数
"command" : 16077462 #执行命令的总次数
},
"asserts" : {
"regular" : 0,
"warning" : 0,
"msg" : 0,
"user" : 37,
"rollovers" : 0
},
"writeBacksQueued" : false,
"recordStats" : {
"accessesNotInMemory" : 0,
"pageFaultExceptionsThrown" : 0,
"org_center" : {
"accessesNotInMemory" : 0,
"pageFaultExceptionsThrown" : 0
},
"tb_shop" : {
"accessesNotInMemory" : 0,
"pageFaultExceptionsThrown" : 0
},
"test" : {
"accessesNotInMemory" : 0,
"pageFaultExceptionsThrown" : 0
}
},
"ok" : 1
}
zabbix监控页面的主要数据开源就是这里。
3、利用zabbix用户自定义监控功能 userparameter 来监控MongoDB:
3.1、修改zabbix_agentd.conf,允许接受自定义参数:
UnsafeUserParameters=1
3.2、定义数据采集命令:
UserParameter=MongoDB.status[*],/bin/echo "db.serverStatus().$1" |/data/mongodb/bin/mongo admin | grep "$2" | awk -F ':' '{print $$2}' | awk -F ',' '{print $$1}'
注意:不同环境,请注意主机ip和端口号等。
4、zabbix监控页面新建监控模版、添加监控项、生成图形:
创建模版:Template App MongoDB(已经手动创建完毕,并创建监控项,需要者可自行下载)
由于监控项众多,本例只贴出其中一个监控项的配置,如下图:
需要注意的是 键值 项,需和 UserParameter 中定义的格式一致。
5、模版创建完成后,套用到被监控的主机即可。
最终效果如下图:
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