InfluxDB Installation/Collectors
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place in <code>/etc/init.d/statcollector</code> | place in <code>/etc/init.d/statcollector</code> | ||
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− | # chkconfig: | + | # chkconfig: 345 90 60 |
## BEGIN INIT INFO | ## BEGIN INIT INFO |
Revision as of 04:23, 3 October 2016
InfluxDB Installation | Collector Scripts
vmstat collector
script
place in /etc/statcollector/statcollector.sh
#!/bin/bash -x #user defined variables dbhostname=('dbhost fqdn') dbport=('8086') dbtable=('influxdb') dbuser=('influx') dbpassword=('influxdb') logdir=("/var/log/statcollector/") #function that checks for connectivity to db host and continues if found. function inet_test { #define variables HOSTNAME=$(hostname) DOMAIN=$(hostname | awk -F "." '/1/ { printf $2"."$3"."$4};') log=("statcollector-$(date +%F).txt") DATE=$(date +%F"|"%R:%S) #function that extracts values and names from vmstat function vmstatvar { #set word boundary as a space, read the line and insert each variable into an array. #this reads the value names from vmstat string=$(vmstat 1 1 -S k | awk 'NR==2') IFS=' ' read -r -a vmstatdef <<<$string #same as above, but this reads the 10 second average values from vmstat and saves them into an array. string2=$(vmstat 10 2 -S k | awk 'NR==4') IFS=' ' read -r -a vmstatvalues <<<$string2 } #function that checks for access to log dir and creates log file either in log directory or in /var/tmp/ function log_dir { if ls "$logdir" >/dev/null 2>&1; then if [ -e "$logdir""$log" ] >/dev/null 2>&1; then printf "$DATE"" -- ""$dbhostname"" ""$is"" accessible\n" >> "$logdir""$log" else printf "Start New Log\n""$DATE"" -- ""$dbhostname"" ""$is"" accessible\n" > "$logdir""$log" fi elif [ -e "/var/tmp/""$log" ] >/dev/null 2>&1; then printf "$DATE"" -- ""$logdir"" is NOT accessible\n""$DATE"" -- ""$dbhostname"" ""$is"" accessible\n" >> "/var/tmp/""$log" else printf "Start New Log\n""$DATE"" -- ""$logdir"" is NOT accessible\n""$DATE"" -- ""$dbhostname"" ""$is"" accessible\n" > "/var/tmp/""$log" fi } #loop that brings everything together and outputs to db via http post function influx_post { for ((i=0;i<=(${#vmstatvalues[@]}-1);i++)) do curl -i --max-time 10\ -H "Accept: application/json" \ -H "Content-Type:application/json" \ -X POST "http://""$dbhostname"":""$dbport""/write?db=""$dbtable" -u "$dbuser":"$dbpassword" --data-binary "${vmstatdef[i]}"",host=""$HOSTNAME"",domain=""$DOMAIN"" value=""${vmstatvalues[i]}" done } #portion of code that checks db connectivity and then calls nested functions if ping -q -c 1 -W 1 "$dbhostname" >/dev/null 2>&1; then is=("is") \ && log_dir \ && vmstatvar \ && influx_post else is=('is NOT') \ && log_dir fi } while true; do inet_test sleep 5 done
Service
place in /etc/init.d/statcollector
# chkconfig: 345 90 60 ## BEGIN INIT INFO # Provides: statcollector # Required-Start: $remote_fs $syslog # Required-Stop: $remote_fs $syslog # Default-Start: 3 4 5 # Default-Stop: 90 # Short-Description: Start statcollector at boot time # Description: Load statcollector at startup to report vmstat values to InfluxDB ### END INIT INFO #startup function start_stat_collector() { printf "Starting Stat Collector ...\n" /etc/statcollector/statcollector.sh > /dev/null 2>&1 & printf "... started.\n" } #stopping function stop_stat_collector () { printf "Stopping Stat Collector ...\n" killall -9 statcollector.sh > /dev/null 2>&1 & printf "... stopped.\n" } #restarting function that stops and starts stat collector restart_stat_collector () { printf "Restarting Stat Collector ..." stop_stat_collector start_stat_collector } #status determination status_stat_collector () { if [ $(ps -ef | grep -v grep | grep 'statcollector.sh' | wc -l) -ge 1 ]; then printf "Stat Collector is running.\n" else printf "Stat Collector is not running.\n" fi } case "$1" in start) start_stat_collector ;; stop) stop_stat_collector ;; restart) restart_stat_collector ;; status) status_stat_collector ;; *) printf "Usage: /etc/init.d/statcollector {start|stop|restart|status}\n" exit 1 ;; esac exit 0
# sudo chmod +x /etc/init.d/statcollector # sudo chkconfig --add /etc/init.d/statcollector