Awk:nagios flow monitoring Plug-in

#!/bin/awk -f#function: nagios plug-in, fine-tuning the threshold value of each network card, specifying the parameter in MB (if the monitoring period is 1 minutes, the specified parameter is 1 minutes transfer data size, non-Mbit/s) # # Usage: Server (WAN:EM1; LAN:EM2), the bandwidth is downstream: 100mbit/s, upstream: 100/3 is approximately equal to 33.3mbit/s (typically downstream one-third), the alarm threshold is calculated by 80%, nagios monitored once per minute, as follows: #接收 (upstream): 100/8*0.8*60=600 (MB) #发送 (downstream): 100/3/8*0.8*60=200 (MB) #监控所有网卡, Nrpe configured as follows: #command [check_netcount]=/usr/local/nagios/libexec/ check_netcount.awk em1 200 600 em2 600 200# Note: Because it is a NAT environment, the EM2 network card alarm parameter is exactly the same as EM1. If it is a single machine, you can specify a network card directly, in the same order: Nic name   receive threshold   Send threshold # #Date:20140929 --sndapkbegin {      #存放上一次数据的临时文件     last_f= "/var/tmp/nagios_bw.tmp"     run_f= "/proc /net/dev "     #获取当前所有网卡: Device name, receive data, send data to Data     while  (getline  Runline <run_f)  {        if  (runline ~ /:/ )  {           sub (/^ +/, "", Runline)      &Nbsp;      split (Runline,runarraytmp, ":  +|:|  + ")            rundata_r[runarraytmp[1]]= runarraytmp[2]           rundata_t[runarraytmp[1]]= runarraytmp[10]        }    }      #判断有没有临时文件     if  (System ("[ -f " Last_f "&NBSP;]")  == 0)  {         #获取上一次的接收, send data to array          while  (Getline lastline <last_f)  {             split (lastline,lastarraytmp, " ")              lastdata_r[lastarraytmp[1]]=lastarraytmp[2]             lastdata_t[lastarraytmp[1]]=lastarraytmp[3]        }          #在上一步获取旧数据后, update temporary files with new data         printf ("")  >last_f         for  (I in rundata_r)  {             print i,rundata_r[i],rundata_t[i] >>last_f         }    }     #未找到临时文件, Action: Initialize the temporary file, initialize the last received, sent array (typically executed on first run)     else {         if  (System ("touch " Last_f)  == 0)  {            for  (J in rundata_r)  {                print j,rundata_r[j],rundata_t[j] >>last _f               lastdata_r[j]=rundata_r[j]                lastdata_t[j]=rundata_t[j]            }        }         else {             print  "Critical - cat not create file:", Last_f "."             exit 2         }    }     #获取各网卡及其报警参数      for  (k=1; k<argc; k+=3)  {        monitor_r[argv [--k]] =argv[++k]        monitor_t[argv[k-=2]]=argv[k+=2]     }      #根据新数据和旧数据, calculate the amount of data generated during this inspection cycle     for  (L in rundata_r)  {         generate_r[l]=int ((Rundata_r[l]-lastdata_r[l])/1024/1024)          generate_t[l]=int ((Rundata_t[l]-lastdata_t[l])/1024/1024)      }     #计算指定监控的网卡是否达到报警阀值, update the status array     for  (m in  monitor_r)  {        if  (M in generate_r)  {            if  (generate_r[m]  >= monitor_r[m] )  {                 critical_r[m]            }             if  (generate_t[m] >=  monitor_t[m] )  {                critical_t[m]             }              #原则, only generate information and performance data for the monitored network card mapping              status=status "__" M "(" Monitor_r[m "," Monitor_t[m] "): r=" generate_r[m] "m,t=" generate_t[m] "M"             sub (/^__/, "", status)              performance=performance "" L "_r=" generate_r[m] ";" Monitor_r[m] ";" L "_t=" generate_t[m] ";" Monitor_t[m] ";"         }        else {             print  "Critical - wrong  parameter. "             exit 2        }    }      #如果状态数组都为0, then normal     if  (Length (critical_r) ==0 && length ( critical_t) ==0 )  {        print  "ok - " status "|" performance        exit 0    }     else {        print  "critical - " Status "|" performance        exit 2    }}

This article is from the "Notepad" blog, make sure to keep this source http://sndapk.blog.51cto.com/5385144/1559536

Awk:nagios flow monitoring Plug-in