stress test for netdata server

diff --git a/tests/stress.sh b/tests/stress.sh
new file mode 100755 (executable)
index 0000000..013ca70
--- /dev/null
+++ b/tests/stress.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+
+# set the host to connect to
+if [ ! -z "$1" ]
+       then
+       host="$1"
+else
+       host="http://127.0.0.1:19999"
+fi
+echo "using netdata server at: $host"
+
+charts=($(curl "$host/netdata.conf" 2>/dev/null | grep "^\[" | cut -d '[' -f 2 | cut -d ']' -f 1 | grep -v ^global$ | grep -v "^plugin" | sort -u))
+if [ "${#charts[@]}" -eq 0 ]
+       then
+       echo "Cannot download charts from server: $host"
+       exit 1
+fi
+
+update_every="$(curl "$host/netdata.conf" 2>/dev/null | grep "update every = " | head -n 1 | cut -d '=' -f 2)"
+[ $[ update_every + 1 - 1] -eq 0 ] && update_every=1
+
+entries="$(curl "$host/netdata.conf" 2>/dev/null | grep "history = " | head -n 1 | cut -d '=' -f 2)"
+[ $[ entries + 1 - 1] -eq 0 ] && entries=3600
+
+modes=("average" "max")
+formats=("jsonp" "json" "ssv" "csv" "datatable" "datasource" "tsv" "ssvcomma" "html" "array")
+options="flip|jsonwrap"
+
+now=$(date +%s)
+first=$[now - (entries * update_every)]
+duration=$[now - first]
+
+file="$(mktemp /tmp/netdata-stress-XXXXXXXX)"
+cleanup() {
+       echo "cleanup"
+       [ -f $file ] && rm $file
+}
+trap cleanup EXIT
+
+while [ 1 = 1 ]
+do
+       echo "curl --compressed --keepalive-time 120 --header \"Connection: keep-alive\" \\" >$file
+       for x in {1..100}
+       do
+               dt=$[RANDOM * duration / 32767]
+               st=$[RANDOM * duration / 32767]
+               et=$[ st + dt ]
+               [ $et -gt $now ] && st=$[ now - dt ]
+
+               points=$[RANDOM * 2000 / 32767 + 2]
+               st=$[first + st]
+               et=$[first + et]
+
+               mode=$[RANDOM * ${#modes[@]} / 32767]
+               mode="${modes[$mode]}"
+
+               chart=$[RANDOM * ${#charts[@]} / 32767]
+               chart="${charts[$chart]}"
+
+               format=$[RANDOM * ${#formats[@]} / 32767]
+               format="${formats[$format]}"
+
+               echo "--url \"$host/api/v1/data?chart=$chart&mode=$mode&format=$format&options=$options&after=$st&before=$et&points=$points\" \\"
+       done >>$file
+       bash $file >/dev/null
+done