olioi at lightboxmedia
Sep 8, 2009, 11:23 AM
Post #3 of 11
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Re: [lvs-users] ldirectord takes long time to add real servers
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Thanks for your interest.
Not sure how I can find out the version, what I did find is this here:
IP Virtual Server version 1.0.8 (command used was /sbin/ipvsadm -L -n)
Here are the config files:
############################################################################
###########
# ha.cf
#
# There are lots of options in this file. All you have to have is a
set
# of nodes listed {"node ...} one of {serial, bcast, mcast, or ucast},
# and a value for "auto_failback".
#
# ATTENTION: As the configuration file is read line by line,
# THE ORDER OF DIRECTIVE MATTERS!
#
# In particular, make sure that the udpport, serial baud rate
# etc. are set before the heartbeat media are defined!
# debug and log file directives go into effect when they
# are encountered.
#
# All will be fine if you keep them ordered as in this example.
#
#
# Note on logging:
# If any of debugfile, logfile and logfacility are defined then they
# will be used. If debugfile and/or logfile are not defined and
# logfacility is defined then the respective logging and debug
# messages will be loged to syslog. If logfacility is not defined
# then debugfile and logfile will be used to log messges. If
# logfacility is not defined and debugfile and/or logfile are not
# defined then defaults will be used for debugfile and logfile as
# required and messages will be sent there.
#
# File to write debug messages to
debugfile /var/log/ha-debug
#
#
# File to write other messages to
#
logfile /var/log/ha-log
#
#
# Facility to use for syslog()/logger
#
logfacility local0
#
#
# A note on specifying "how long" times below...
#
# The default time unit is seconds
# 10 means ten seconds
#
# You can also specify them in milliseconds
# 1500ms means 1.5 seconds
#
#
# keepalive: how long between heartbeats?
#
#keepalive 2
#
# deadtime: how long-to-declare-host-dead?
#
# If you set this too low you will get the problematic
# split-brain (or cluster partition) problem.
# See the FAQ for how to use warntime to tune deadtime.
#
#deadtime 30
#
# warntime: how long before issuing "late heartbeat" warning?
# See the FAQ for how to use warntime to tune deadtime.
#
#warntime 10
#
#
# Very first dead time (initdead)
#
# On some machines/OSes, etc. the network takes a while to come up
# and start working right after you've been rebooted. As a result
# we have a separate dead time for when things first come up.
# It should be at least twice the normal dead time.
#
#initdead 120
#
#
# What UDP port to use for bcast/ucast communication?
#
#udpport 694
#
# Baud rate for serial ports...
#
#baud 19200
#
# serial serialportname ...
#serial /dev/ttyS0 # Linux
#serial /dev/cuaa0 # FreeBSD
#serial /dev/cua/a # Solaris
#
#
# What interfaces to broadcast heartbeats over?
#
#bcast eth0 # Linux
#bcast eth1 eth2 # Linux
#bcast le0 # Solaris
#bcast le1 le2 # Solaris
#
# Set up a multicast heartbeat medium
# mcast [dev] [mcast group] [port] [ttl] [loop]
#
# [dev] device to send/rcv heartbeats on
# [mcast group] multicast group to join (class D multicast address
# 224.0.0.0 - 239.255.255.255)
# [port] udp port to sendto/rcvfrom (set this value to the
# same value as "udpport" above)
# [ttl] the ttl value for outbound heartbeats. this effects
# how far the multicast packet will propagate.
(0-255)
# Must be greater than zero.
# [loop] toggles loopback for outbound multicast heartbeats.
# if enabled, an outbound packet will be looped back
and
# received by the interface it was sent on. (0 or 1)
# Set this value to zero.
#
#
#mcast eth0 225.0.0.1 694 1 0
#
# Set up a unicast / udp heartbeat medium
# ucast [dev] [peer-ip-addr]
#
# [dev] device to send/rcv heartbeats on
# [peer-ip-addr] IP address of peer to send packets to
#
#ucast eth0 192.168.1.2
#
#
# About boolean values...
#
# Any of the following case-insensitive values will work for true:
# true, on, yes, y, 1
# Any of the following case-insensitive values will work for false:
# false, off, no, n, 0
#
#
#
# auto_failback: determines whether a resource will
# automatically fail back to its "primary" node, or remain
# on whatever node is serving it until that node fails, or
# an administrator intervenes.
#
# The possible values for auto_failback are:
# on - enable automatic failbacks
# off - disable automatic failbacks
# legacy - enable automatic failbacks in systems
# where all nodes do not yet support
# the auto_failback option.
#
# auto_failback "on" and "off" are backwards compatible with the old
# "nice_failback on" setting.
#
# See the FAQ for information on how to convert
# from "legacy" to "on" without a flash cut.
# (i.e., using a "rolling upgrade" process)
#
# The default value for auto_failback is "legacy", which
# will issue a warning at startup. So, make sure you put
# an auto_failback directive in your ha.cf file.
# (note: auto_failback can be any boolean or "legacy")
#
auto_failback on
#
#
# Basic STONITH support
# Using this directive assumes that there is one stonith
# device in the cluster. Parameters to this device are
# read from a configuration file. The format of this line is:
#
# stonith <stonith_type> <configfile>
#
# NOTE: it is up to you to maintain this file on each node in the
# cluster!
#
#stonith baytech /etc/ha.d/conf/stonith.baytech
#
# STONITH support
# You can configure multiple stonith devices using this directive.
# The format of the line is:
# stonith_host <hostfrom> <stonith_type> <params...>
# <hostfrom> is the machine the stonith device is attached
# to or * to mean it is accessible from any host.
# <stonith_type> is the type of stonith device (a list of
# supported drives is in /usr/lib/stonith.)
# <params...> are driver specific parameters. To see the
# format for a particular device, run:
# stonith -l -t <stonith_type>
#
#
# Note that if you put your stonith device access information in
# here, and you make this file publically readable, you're asking
# for a denial of service attack ;-)
#
# To get a list of supported stonith devices, run
# stonith -L
# For detailed information on which stonith devices are supported
# and their detailed configuration options, run this command:
# stonith -h
#
#stonith_host * baytech 10.0.0.3 mylogin mysecretpassword
#stonith_host ken3 rps10 /dev/ttyS1 kathy 0
#stonith_host kathy rps10 /dev/ttyS1 ken3 0
#
# Watchdog is the watchdog timer. If our own heart doesn't beat for
# a minute, then our machine will reboot.
# NOTE: If you are using the software watchdog, you very likely
# wish to load the module with the parameter "nowayout=0" or
# compile it without CONFIG_WATCHDOG_NOWAYOUT set. Otherwise even
# an orderly shutdown of heartbeat will trigger a reboot, which is
# very likely NOT what you want.
#
#watchdog /dev/watchdog
#
# Tell what machines are in the cluster
# node nodename ... -- must match uname -n
#node ken3
#node kathy
#
# Less common options...
#
# Treats 10.10.10.254 as a psuedo-cluster-member
# Used together with ipfail below...
#
#ping 10.10.10.254
#
# Treats 10.10.10.254 and 10.10.10.253 as a psuedo-cluster-member
# called group1. If either 10.10.10.254 or 10.10.10.253 are up
# then group1 is up
# Used together with ipfail below...
#
#ping_group group1 10.10.10.254 10.10.10.253
#
# Processes started and stopped with heartbeat. Restarted unless
# they exit with rc=100
#
#respawn userid /path/name/to/run
#respawn hacluster /usr/lib/heartbeat/ipfail
###########################
#
# Unusual options.
#
###########################
#
# hopfudge maximum hop count minus number of nodes in config
#hopfudge 1
#
# deadping - dead time for ping nodes
#deadping 30
#
# hbgenmethod - Heartbeat generation number creation method
# Normally these are stored on disk and incremented as needed.
#hbgenmethod time
#
# realtime - enable/disable realtime execution (high priority, etc.)
# defaults to on
#realtime off
#
# debug - set debug level
# defaults to zero
#debug 1
#
# API Authentication - replaces the fifo-permissions-based system of
the past
#
#
# You can put a uid list and/or a gid list.
# If you put both, then a process is authorized if it qualifies under
either
# the uid list, or under the gid list.
#
# The groupname "default" has special meaning. If it is specified,
then
# this will be used for authorizing groupless clients, and any client
groups
# not otherwise specified.
#
#apiauth ipfail uid=hacluster
#apiauth ccm uid=hacluster
#apiauth ping gid=haclient uid=alanr,root
#apiauth default gid=haclient
# message format in the wire, it can be classic or netstring, default is
classic
#msgfmt netstring
############################################################################
####################
############################################################################
######
# ldirecord.cf (example)
# SSL site for secure.domain.com
virtual=https.domain.com:443
real=web1.domain.com:443 masq 10
real=web2.domain.com:443 masq 10
service=https
request="/ldirectord.html"
receive="Present and Accounted For!"
scheduler=wlc
persistent=600
protocol=tcp
checktype=negotiate
# http site for www.domain.com
virtual=http.domain.com:80
real=web1.domain.com:80 masq 10
real=web2.domain.com:80 masq 10
service=http
request="/ldirectord.html"
receive="Present and Accounted For!"
scheduler=wlc
persistent=600
protocol=tcp
checktype=negotiate
############################################################################
####
Ozz Lioi
Systems Administrator
Lightbox Media
olioi [at] lightboxmedia
Mobile: 778-997-1997
-----Original Message-----
From: lvs-users-bounces [at] linuxvirtualserver
[mailto:lvs-users-bounces [at] linuxvirtualserver] On Behalf Of Simon Horman
Sent: Monday, September 07, 2009 4:04 PM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] ldirectord takes long time to add real servers
On Fri, Sep 04, 2009 at 12:25:24PM -0700, ozz lioi wrote:
> Greetings,
>
>
>
> I have an instance of LVS running on my firewall and it does split the
load
> to 2 web servers very well.
>
> If the Apache servers are restarted closely together, we can see lots of
> mis-directions for some of our sites as well as wrong certificates getting
> called.
>
> I noticed that after the httpd service restarted the logs for lredirectord
> take 1 hour to add the real server back, from web1.
That doesn't sound good. Do you have a recent version of ldirectord?
Could you post your config file?
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_______________________________________________
Please read the documentation before posting - it's available at:
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Send requests to lvs-users-request [at] LinuxVirtualServer
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