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Include UDP sent packet statistics in net stats #1225

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Sep 14, 2018
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Include UDP sent packet statistics in net stats #1225

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8 changes: 7 additions & 1 deletion scripts/net-stats.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@ cd "$(dirname "$0")"
# shellcheck source=scripts/configure-metrics.sh
source configure-metrics.sh

packets_sent=0
packets_sent_diff=0
packets_received=0
packets_received_diff=0
receive_errors=0
Expand All @@ -22,6 +24,10 @@ update_netstat() {
net_stat=$(netstat -suna)

declare stats
stats=$(echo "$net_stat" | awk 'BEGIN {tmp_var = 0} /packets sent/ {tmp_var = $1} END { print tmp_var }')
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@rob-solana rob-solana Sep 14, 2018 •
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netsnmp()
{
  # $1: section name, e.g. "udp"                                                                                                                                                                                                                                                   
  # $2-....: field names to query, e.g. "udp"                                                                                                                                                                                                                                      
  #  outputs field values in order                                                                                                                                                                                                                                                 
  declare -a names=( )
  declare -a values=( )
  declare section=$1

  shift

  while read -r -a line; do
    [[ ${line[0]} == "${section}:" ]] || continue
    names=( "${line[@]:1}" )
    read -r -a line
    values=( "${line[@]:1}" )
  done < /proc/net/snmp

  while [[ -n $1 ]]; do
    for ((i=0; i<${#names[*]}; i++)); do
      [[ ${names[i]} == "$1" ]] && echo "${values[i]}" && break
    done
    shift
  done
}

for your purposes:

packets_sent_diff=$(($(netsnmp Udp OutDatagrams) - packets_sent))

packets_sent_diff=$((stats - packets_sent))
packets_sent="$stats"

stats=$(echo "$net_stat" | awk 'BEGIN {tmp_var = 0} /packets received/ {tmp_var = $1} END { print tmp_var }')
packets_received_diff=$((stats - packets_received))
packets_received="$stats"
Expand All @@ -39,7 +45,7 @@ update_netstat

while true; do
update_netstat
report="packets_received=$packets_received_diff,receive_errors=$receive_errors_diff,rcvbuf_errors=$rcvbuf_errors_diff"
report="packets_sent=$packets_sent_diff,packets_received=$packets_received_diff,receive_errors=$receive_errors_diff,rcvbuf_errors=$rcvbuf_errors_diff"

echo "$report"
./metrics-write-datapoint.sh "net-stats,hostname=$HOSTNAME $report"
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