MRTG : Get Memory Usage

MRTG : Get Memory Usage 2015/06/16

	Configure MRTG to display Memory Usage rate.
[1]	Configure MRTG.

# make sure total memory [root@dlp ~]#  free  total used free shared buff/cache available Mem: 4047620 263968 3336184 17476 447468 3560284 Swap: 3145724 0 3145724 [root@dlp ~]#  vi /etc/mrtg/mrtg.cfg # add follows to the end (replace the "Serverworld" to your comunity name) Target[mem]: .1.3.6.1.4.1.2021.4.6.0&.1.3.6.1.4.1.2021.4.4.0:Serverworld@127.0.0.1:::::2 # total memory MaxBytes1[Mem]: 4047620 # total swap MaxBytes2[Mem]: 3145724 Unscaled[Mem]: dwmy Options[Mem]: gauge, growright YLegend[Mem]: Mem Free(Bytes) ShortLegend[Mem]: Bytes kilo[Mem]: 1024 kMG[Mem]: k,M,G,T,P LegendI[Mem]: Real LegendO[Mem]: Swap Legend1[Mem]: Memory Free [MBytes] Legend2[Mem]: Swap Free [MBytes] Title[Mem]: Memory Free PageTop[Mem]: <H1>Memory Free</H1> # execute mrtg 3 times (display warnings until 3 times) [root@dlp ~]#  for (( i=1 ; i <= 3 ; i++ )); do env LANG=C mrtg /etc/mrtg/mrtg.cfg; done  2015-06-16 19:26:12, Rateup WARNING: /usr/bin/rateup could not read the primary log file for mem 2015-06-16 19:26:12, Rateup WARNING: /usr/bin/rateup The backup log file for mem was invalid as well 2015-06-16 19:26:12, Rateup WARNING: /usr/bin/rateup Can't rename mem.log to mem.old updating log file # generate index file [root@dlp ~]#  indexmaker --columns=1 /etc/mrtg/mrtg.cfg > /var/www/mrtg/index.html

[2]	Access to the "http://(MRTG hostname or IP address)/mrtg/" from a client with HTTP, then it's possible to see Memory Usage rate.