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--- load_logger [2020/04/13 22:15]
neil
+++ — (current)
@@ Line 1: / Line 1: @@
-====== Load logger ======
-A simple bash script to log the datetime and system load to a file every 30 seconds.
-<code bash 'save_load.sh'>
-#!/bin/bash
-ID='SERVER1'
-while(true) {
-    printf -v date '%(%Y-%m-%d %H:%M:%S)T' -1
-    CPU_USAGE=`grep 'cpu ' /proc/stat | awk '{print ($2+$4)*100/($2+$4+$5)}'`
-    MEM_USAGE=`free -m | grep 'Mem:' | awk -v OFS="," '{print ($2,$3,$4,$5,$6,$7)}'`
-    LOAD_AVG=`awk -v OFS="," '{split($4,arr,"/")} {print $1,$2,$3,arr[2]}' /proc/loadavg`
-    echo -e $ID','$date','$CPU_USAGE','$MEM_USAGE','$LOAD_AVG
-    sleep 30;
-}
-</code>
-Save data in the following format: Server ID, Date/Time, CPU usage (%), Memory Total (Mb), Memory Used (Mb), Memory Free (Mb), Memory Shared (Mb), Memory Buffered/Cached (Mb), Memory Available (Mb), 1 minute load average, 5 minute load average, 15 minute load average, process count
-<code>
-SERVER1,2020-04-13 22:59:59,3.86818,15929,2082,9545,273,4301,13258,0.27,0.31,0.24,703
-SERVER1,2020-04-13 23:06:04,3.87079,15929,2127,9497,276,4304,13211,0.22,0.25,0.22,708
-SERVER1,2020-04-13 23:06:22,3.87107,15929,2127,9494,278,4307,13208,0.36,0.28,0.24,710
-</code>
-I use a cronjob to check every 5 minutes to make sure it's always running:
-<code bash>
-#!/bin/bash
-if [[ ! `pidof -s save_load.sh` ]]; then
-  /bin/save_load.sh >> /logs/stats.log
-fi
-</code>

neil.mckillop.org