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Generate and send StatsD test metrics
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#!/bin/bash | |
DEFAULT='\033[0m' | |
HI_CYAN='\033[0;96m' | |
HI_WHITE='\033[0;93m' | |
STATSD_HOST=127.0.0.1 | |
STATSD_PORT=8125 | |
api_names=(orders invoice user) | |
max_index=$((${#api_names[@]} - 1)) | |
num_metrics_per_second=4 # per second | |
requests_count=0 | |
# send StatsD metrics over UDP localhost port 8125 | |
while true; | |
do | |
# get a random api name and milliseconds between 50-150 | |
rand_index=$(shuf -i 0-$max_index -n 1) | |
rand_ms=$(shuf -i 50-150 -n 1) | |
rand_api_name=${api_names[$rand_index]} | |
# build metric - format: test_api_call.[api_name].timer.[api_endpoint] | |
metric="test_api_call.$rand_api_name-api.timer./v1/$rand_api_name:$rand_ms|ms" | |
# send metric | |
echo $metric | nc -w 0 -u $STATSD_HOST $STATSD_PORT | |
# view generated metric | |
printf "${HI_WHITE}echo ${HI_CYAN}$metric${DEFAULT} - ${rand_ms}ms\n" | |
# control how many metric lines are emitted per second | |
requests_count=$(($requests_count+1)) | |
if [ $requests_count == $num_metrics_per_second ]; then | |
echo "sent $num_metrics_per_second metrics - $(date +'%T')" | |
requests_count=0 | |
sleep 1 | |
fi | |
done |
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