Vserver watchdogs - Revision history

PhilippeTeuwen: Reverted edits by Etegohy (Talk) to last revision by PhilippeTeuwen

2010-11-24T20:35:35Z

Reverted edits by Etegohy (Talk) to last revision by PhilippeTeuwen

Can't load revision 6853

at 00:31, 24 November 2010

2010-11-24T00:31:03Z

Can't load revision 6695

PhilippeTeuwen at 16:03, 28 March 2008

2008-03-28T16:03:59Z

← Older revision		Revision as of 16:03, 28 March 2008
Line 1:		Line 1:
	===Monitoring listening TCP/UDP processes===		===Monitoring listening TCP/UDP processes===
	====mynetstat====		====mynetstat====
			<source lang=bash>
	<pre>
	#!/bin/bash		#!/bin/bash

Line 72:		Line 72:

	[ $? -eq 1 ] && $POSTUPDATE && exec $0 update $*		[ $? -eq 1 ] && $POSTUPDATE && exec $0 update $*
	</~~pre~~>		</source>

	====/etc/cron.d/watch-vservers====		====/etc/cron.d/watch-vservers====
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	===Monitoring running processes===		===Monitoring running processes===
	====myps====		====myps====
			<source lang=bash>
	<pre>
	#!/bin/bash		#!/bin/bash

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	uniq\|\		uniq\|\
	eval $CMD		eval $CMD
	</~~pre~~>		</source>
	Some explanation:		Some explanation:
	<br>myps-filter.conf is supposed to contain lines used by grep -v to clean the output from processes that can run but not necessarily so you don't want to hear about them		<br>myps-filter.conf is supposed to contain lines used by grep -v to clean the output from processes that can run but not necessarily so you don't want to hear about them
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	So I wrote a script and installed it in a cron to kill any such dandling process:		So I wrote a script and installed it in a cron to kill any such dandling process:
			<source lang=bash>
	<pre>
	pids=$(/usr/sbin/vps axc\|\		pids=$(/usr/sbin/vps axc\|\
	egrep ' ? +[RS] +[1-9][0-9]*:[0-9]+ +vcontext'\|\		egrep ' ? +[RS] +[1-9][0-9]*:[0-9]+ +vcontext'\|\
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	echo "Killing dandling login" && \		echo "Killing dandling login" && \
	kill $pids		kill $pids
	</~~pre~~>		</source>
	And /etc/cron.d/watch-vservers:		And /etc/cron.d/watch-vservers:
	<pre>		<pre>
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	<br>So I decided to monitor all my daemons and try to restart them automatically when there is a problem		<br>So I decided to monitor all my daemons and try to restart them automatically when there is a problem
	====mywatchdog====		====mywatchdog====
			<source lang=bash>
	<pre>
	#!/bin/bash		#!/bin/bash

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	fi		fi
	done		done
	</~~pre~~>		</source>

	====/etc/cron.d/watch-vservers====		====/etc/cron.d/watch-vservers====

PhilippeTeuwen: /* mynetstat */

2008-02-18T22:12:47Z

mynetstat

← Older revision		Revision as of 22:12, 18 February 2008
Line 57:		Line 57:
	/usr/bin/awk -v vs=$i '		/usr/bin/awk -v vs=$i '
	/^(tcp\|udp)/{		/^(tcp\|udp)/{
	if ($7==""){		if ($7=="")
	$7=$6		$7=$6;
	};
	sub(/^[0-9]+\//,"",$7);		sub(/^[0-9]+\//,"",$7);
	printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7		printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7

PhilippeTeuwen: /* mynetstat */

2008-02-18T22:11:35Z

mynetstat

← Older revision		Revision as of 22:11, 18 February 2008
Line 54:		Line 54:
	esac		esac

			function FILTER() {
			/usr/bin/awk -v vs=$i '
			/^(tcp\|udp)/{
			if ($7==""){
			$7=$6
			};
			sub(/^[0-9]+\//,"",$7);
		⚫	printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7
			}'
			}
	(		(
	for i in $(/usr/sbin/vserver-stat \|awk '/^[0-9]/{print $8}'); do		for i in $(/usr/sbin/vserver-stat \|awk '/^[0-9]/{print $8}'); do
	/usr/sbin/vserver $i exec /bin/netstat --ip -lp\|\		/usr/sbin/vserver $i exec /bin/netstat --ip -lp $NUMERIC\|FILTER
⚫	~~/usr/bin/awk~~ -v ~~vs=$i~~ ~~'/^(tcp\|udp)/{if~~ ~~($7==""){$7=$6};~~printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
			i=HOST
	/bin/netstat --ip -lp\|/usr/bin/awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
			/bin/netstat --ip -lp $NUMERIC\|FILTER
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD

PhilippeTeuwen: /* mynetstat */

2008-02-18T15:01:59Z

mynetstat

← Older revision		Revision as of 15:01, 18 February 2008
Line 55:		Line 55:

	(		(
	for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do		for i in $(/usr/sbin/vserver-stat \|awk '/^[0-9]/{print $8}'); do
	vserver $i exec netstat --ip -lp\|\		/usr/sbin/vserver $i exec /bin/netstat --ip -lp\|\
	awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'		/usr/bin/awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
	netstat --ip -lp\|awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'		/bin/netstat --ip -lp\|/usr/bin/awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD

PhilippeTeuwen: /* mynetstat */

2008-02-18T00:56:44Z

mynetstat

← Older revision		Revision as of 00:56, 18 February 2008
Line 59:		Line 59:
	awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'		awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
			netstat --ip -lp\|awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD

PhilippeTeuwen: /* mynetstat */

2008-02-18T00:54:43Z

mynetstat

← Older revision		Revision as of 00:54, 18 February 2008
Line 56:		Line 56:
	(		(
	for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do		for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do
	vserver $i exec netstat --ip -lp\|~~awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s~~\~~n", vs, $1, $4, $7}'~~		vserver $i exec netstat --ip -lp\|\
			awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD

PhilippeTeuwen: /* mynetstat */

2008-02-18T00:54:18Z

mynetstat

← Older revision		Revision as of 00:54, 18 February 2008
Line 54:		Line 54:
	esac		esac

			(
	/usr/sbin/chcontext --ctx 1 netstat --ip -lp $* \|\
			for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do
	awk '\
			vserver $i exec netstat --ip -lp\|awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	FNR>2 {
			done
	printf $1 "\t%-23s\t", $4;
		⚫	) \|sort -b \| eval $CMD
	if ($7 == "")
	{$7=$6};
	sub(/\/.*/,"",$7);
	system("/usr/sbin/vps -p " $7 " -o pid,comm\|sed \"1d;s/^[ 0-9]\\+//\"")
⚫	}'\|sort -~~bk 3~~ \| eval $CMD
	# To get also args of the command, change "pid,command" by "pid,comm"

	[ $? -eq 1 ] && $POSTUPDATE && exec $0 update $*		[ $? -eq 1 ] && $POSTUPDATE && exec $0 update $*

PhilippeTeuwen at 14:22, 30 June 2007

2007-06-30T14:22:59Z

← Older revision		Revision as of 14:22, 30 June 2007
Line 5:		Line 5:

	# Copyright: 2007 Philippe Teuwen <phil at teuwen dot org>		# Copyright: 2007 Philippe Teuwen <phil at teuwen dot org>
	# License: ~~GPL~~		# License: GPLv3 or later
	#		#
	# Description:		# Description:
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	# Copyright: 2007 Philippe Teuwen <phil at teuwen dot org>		# Copyright: 2007 Philippe Teuwen <phil at teuwen dot org>
	# License: ~~GPL~~		# License: GPLv3 or later
	#		#
	# Description:		# Description:
Line 213:		Line 213:

	# Copyright: Philippe Teuwen <phil at teuwen dot org>		# Copyright: Philippe Teuwen <phil at teuwen dot org>
	# License: ~~GPL~~		# License: GPLv3 or later
	#		#
	# Usage:		# Usage:

← Older revision		Revision as of 15:01, 18 February 2008
Line 55:		Line 55:

	(		(
	for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do		for i in $(/usr/sbin/vserver-stat \|awk '/^[0-9]/{print $8}'); do
	vserver $i exec netstat --ip -lp\|\		/usr/sbin/vserver $i exec /bin/netstat --ip -lp\|\
	awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'		/usr/bin/awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
	netstat --ip -lp\|awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'		/bin/netstat --ip -lp\|/usr/bin/awk -v vs=HOST '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD

← Older revision		Revision as of 00:54, 18 February 2008
Line 56:		Line 56:
	(		(
	for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do		for i in $(vserver-stat \|awk '/^[0-9]/{print $8}'); do
	vserver $i exec netstat --ip -lp\|~~awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s~~\~~n", vs, $1, $4, $7}'~~		vserver $i exec netstat --ip -lp\|\
			awk -v vs=$i '/^(tcp\|udp)/{if ($7==""){$7=$6};printf "%-20s%-10s%-30s%s\n", vs, $1, $4, $7}'
	done		done
	) \|sort -b \| eval $CMD		) \|sort -b \| eval $CMD