在snmpd.conf中采用load关键字来监控系统负载,格式如下:
# load [1MAX=12.0] [5MAX=12.0] [15MAX=12.0]
#
# 1MAX: If the 1 minute load average is above this limit at query
# time, the errorFlag will be set.
# 5MAX: Similar, but for 5 min average.
# 15MAX: Similar, but for 15 min average.
load关键字跟随1 min max load 以及5 min max load ,15 min max load,如果系统负载超过了这三个的某一个值,loadaveErrorFlag就被设为1,如果没有参数,默认使用1分钟最大负载。
具体的OID为:
root(.)->iso(1)->org(3)->dod(6)->internet(1)->private(4)->enterprises(1)->ucdavis(2021)->10->1
也就是:.1.3.6.1.4.1.2021.10
在配置文件中添加:
load 0.01 10 0.01 #此配置仅用于测试
# snmpwalk -v2c -cpublic 192.168.1.21 1.3.6.1.4.1.2021.10
UCD-SNMP-MIB::laIndex.1 = INTEGER: 1 //1分钟、5分钟、15分钟的负载索引编号
UCD-SNMP-MIB::laIndex.2 = INTEGER: 2
UCD-SNMP-MIB::laIndex.3 = INTEGER: 3
UCD-SNMP-MIB::laNames.1 = STRING: Load-1 //1分钟、5分钟、15分钟的负载标识名
UCD-SNMP-MIB::laNames.2 = STRING: Load-5
UCD-SNMP-MIB::laNames.3 = STRING: Load-15
UCD-SNMP-MIB::laLoad.1 = STRING: 0.24 //获得的当前负载值
UCD-SNMP-MIB::laLoad.2 = STRING: 0.05
UCD-SNMP-MIB::laLoad.3 = STRING: 0.02
UCD-SNMP-MIB::laConfig.1 = STRING: 0.01 //系统负载的预设值
UCD-SNMP-MIB::laConfig.2 = STRING: 10.00
UCD-SNMP-MIB::laConfig.3 = STRING: 0.01
UCD-SNMP-MIB::laLoadInt.1 = INTEGER: 23 //int类型值
UCD-SNMP-MIB::laLoadInt.2 = INTEGER: 5
UCD-SNMP-MIB::laLoadInt.3 = INTEGER: 2
UCD-SNMP-MIB::laLoadFloat.1 = Opaque: Float: 0.240000 //float类型值
UCD-SNMP-MIB::laLoadFloat.2 = Opaque: Float: 0.050000
UCD-SNMP-MIB::laLoadFloat.3 = Opaque: Float: 0.020000
UCD-SNMP-MIB::laErrorFlag.1 = INTEGER: error(1) //是否超出预设值
UCD-SNMP-MIB::laErrorFlag.2 = INTEGER: noError(0)
UCD-SNMP-MIB::laErrorFlag.3 = INTEGER: error(1)
UCD-SNMP-MIB::laErrMessage.1 = STRING: 1 min Load Average too high (= 0.24) //出错信息提示
UCD-SNMP-MIB::laErrMessage.2 = STRING:
UCD-SNMP-MIB::laErrMessage.3 = STRING: 15 min Load Average too high (= 0.02)
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