node_exporter/end-to-end-test.sh
Ed Schouten a696830c38 Add a collector for NFS client statistics.
This change adds a new collector called "nfs" that parses the contents
of /proc/net/rpc/nfs and turns it into metrics. It can be used to
inspect the number of operations per type, but also to keep an eye on an
extraneous number of retransmissions, which may indicate connectivity
issues.

I've picked the name "nfs", as most operating systems use "nfs" for the
client component and "nfsd" as the server component. If we want to add
stats for the NFS server as well, we'd better call such a collector
"nfsd".
2016-12-09 19:58:08 +01:00

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#!/usr/bin/env bash
set -euf -o pipefail
collectors=$(cat << COLLECTORS
conntrack
diskstats
entropy
filefd
hwmon
ksmd
loadavg
mdadm
meminfo
meminfo_numa
netdev
netstat
nfs
sockstat
stat
textfile
bonding
megacli
COLLECTORS
)
cd "$(dirname $0)"
port="$((10000 + (RANDOM % 10000)))"
tmpdir=$(mktemp -d /tmp/node_exporter_e2e_test.XXXXXX)
skip_re="^(go_|node_exporter_|process_|node_textfile_mtime)"
keep=0; update=0; verbose=0
while getopts 'hkuv' opt
do
case "$opt" in
k)
keep=1
;;
u)
update=1
;;
v)
verbose=1
set -x
;;
*)
echo "Usage: $0 [-k] [-u] [-v]"
echo " -k: keep temporary files and leave node_exporter running"
echo " -u: update fixture"
echo " -v: verbose output"
exit 1
;;
esac
done
if [ ! -x ./node_exporter ]
then
echo './node_exporter not found. Consider running `go build` first.' >&2
exit 1
fi
./node_exporter \
-collector.procfs="collector/fixtures/proc" \
-collector.sysfs="collector/fixtures/sys" \
-collectors.enabled="$(echo ${collectors} | tr ' ' ',')" \
-collector.textfile.directory="collector/fixtures/textfile/two_metric_files/" \
-collector.megacli.command="collector/fixtures/megacli" \
-web.listen-address "127.0.0.1:${port}" \
-log.level="debug" > "${tmpdir}/node_exporter.log" 2>&1 &
echo $! > "${tmpdir}/node_exporter.pid"
finish() {
if [ ${verbose} -ne 0 ]
then
echo "LOG ====================="
cat "${tmpdir}/node_exporter.log"
echo "========================="
fi
if [ ${update} -ne 0 ]
then
cp "${tmpdir}/e2e-output.txt" "collector/fixtures/e2e-output.txt"
fi
if [ ${keep} -eq 0 ]
then
kill -9 "$(cat ${tmpdir}/node_exporter.pid)"
# This silences the "Killed" message
set +e
wait "$(cat ${tmpdir}/node_exporter.pid)" > /dev/null 2>&1
rm -rf "${tmpdir}"
fi
}
trap finish EXIT
get() {
if which curl > /dev/null 2>&1
then
curl -s -f "$@"
elif which wget > /dev/null 2>&1
then
wget -O - "$@"
else
echo "Neither curl nor wget found"
exit 1
fi
}
sleep 1
get "127.0.0.1:${port}/metrics" > "${tmpdir}/e2e-output.txt"
diff -u \
<(grep -E -v "${skip_re}" "collector/fixtures/e2e-output.txt") \
<(grep -E -v "${skip_re}" "${tmpdir}/e2e-output.txt")