53 lines
1.3 KiB
Bash
Executable File
53 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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# -*- sh -*-
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#
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# Plugin to monitor network connection activity using a subset of data from /proc/net/netstat
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#
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# Parameters:
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#
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# config (required)
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# autoconf (optional - only used by munin-config)
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#
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# Environment variables (optional):
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#
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# IGNORED_FIELDS: comma-separated list of regexs for fields to ignore
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#
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# Author: Ted Dumitrescu (ted@mixpanel.com, webdev@cmme.org)
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#
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# Magic markers (optional - used by munin-config and some installation
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# scripts):
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#%# family=auto
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#%# capabilities=autoconf
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NETSTATS="/proc/net/netstat"
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if [ -z $IGNORED_FIELDS ]; then
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IGNORED_FIELDS='TW\.,TCPPrequeued,TCPDirectCopy,TCPHPHits,TCPPureAcks,TCPHPAcks,TCPRcvCoalesce'
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fi
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TO_REMOVE=`echo $IGNORED_FIELDS | sed 's/,/\\\|/g'`
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STRIP_OUTPUT="/\($TO_REMOVE\)/d"
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if [ "$1" = "autoconf" ]; then
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if [ -r $NETSTATS ]; then
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echo yes
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else
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echo no
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fi
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exit 0
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fi
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if [ "$1" = "config" ]; then
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echo 'graph_title Netstat'
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echo 'graph_args -l 0 --base 1000'
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echo 'graph_category network'
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echo 'graph_period second'
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echo 'graph_info TcpExt stats'
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awk 'NR < 2 { for (i=2; i<=NF; i++) { printf("%s.label %s\n%s.type DERIVE\n%s.min 0\n", $i, $i, $i, $i); } }' $NETSTATS | sed "$STRIP_OUTPUT"
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exit 0
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fi
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awk 'NR < 2 { for (i=2; i<=NF; i++) { fn[i]=$i; }; getline; for (i=2; i<=NF; i++) { printf("%s.value %s\n", fn[i], $i); } }' $NETSTATS | sed "$STRIP_OUTPUT"
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