collect-memstat.sh

#!/bin/sh

PROGRAM_DIR="`dirname \"$0\"`"
. "$PROGRAM_DIR/utils.sh"

interval=5
while getopts i:I:n: c
do case "$c" in
	i)
		interval="$OPTARG"
		;;
	I)
		HOSTNAME="`get_ip_address \"$OPTARG\"`"
		if [ -z "$HOSTNAME" ]; then
			printf "Cannot get IP address from interface '%s'\\n" "$OPTARG" 1>&2
			exit 1
		fi
		;;
	n)
		HOSTNAME="$1"
		;;
	\?)
		printf "Usage: %s [-i <interval>] [-I <interface>] [-n <hostname>]\\n" "$0" 1>&2
		exit 255
		;;
esac done

export LC_TIME=C
sar -r "$interval" | sed -ur -e "/^[0-9]{2}:[0-9]{2}:[0-9]{2}/!d" -e "s/[0-9]{2}:[0-9]{2}:[0-9]{2}.{4}//" | while read -r line; do
	set -- $line
	if [ $# != 10 ]; then
		echo "data error: # $# != 10"
		continue
	fi
	[ "$1" = kbmemfree ] && continue
	#echo $7
	http_post "http://172.20.0.74:8086/write?db=mydb" \
		"memstat,host=$HOSTNAME kbmemfree=$1,kbmemused=$2,memused_p=$3,kbbuffers=$4,kbcached=$5,kbcommit=$6,commit_p=$7,kbactive=$8,kbinact=$9,kbdirty=${10}"
done