Автор Тема: Голям load от samba  (Прочетена 1513 пъти)

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Голям load от samba
« -: Jan 16, 2008, 02:15 »
Хора не знам защо се получава така но самбата ми качва load average на сървъра до 4 при трансфер което не е нормално. Сървъра е P4 2.4 GHz, 1.2GB RAM и това не е нормално. Файловата система е xfs ако това има значение. Дистрибуцията е Gentoo и се упдейтва постоянно до последен stable release. Ето го и smb.conf:
Примерен код
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options (perhaps too
# many!) most of which are not shown in this example
#
# For a step to step guide on installing, configuring and using samba,
# read the Samba-HOWTO-Collection. This may be obtained from:
#  http://www.samba.org/samba/docs/Samba-HOWTO-Collection.pdf
#
# Many working examples of smb.conf files can be found in the
# Samba-Guide which is generated daily and can be downloaded from:
#  http://www.samba.org/samba/docs/Samba-Guide.pdf
#
# Any line which starts with a; (semi-colon) or a # (hash)
# is a comment and is ignored. In this example we will use a #
# for commentry and a; for parts of the config file that you
# may wish to enable
#
# NOTE: Whenever you modify this file you should run the command "testparm"
# to check that you have not made any basic syntactic errors.
#
#======================= Global Settings =====================================
[global]

# 1. Server Naming Options:
# workgroup = NT-Domain-Name or Workgroup-Name


# netbios name is the name you will see in "Network Neighbourhood",
# but defaults to your hostname
;  netbios name = <name_of_this_server>

# server string is the equivalent of the NT Description field
server string = TheMachine

# 2. Printing Options:
# CHANGES TO ENABLE PRINTING ON ALL CUPS PRINTERS IN THE NETWORK
# if you want to automatically load your printer list rather
# than setting them up individually then you'll need this
printcap name = cups

# It should not be necessary to spell out the print system type unless
# yours is non-standard. Currently supported print systems include:
# bsd, sysv, plp, lprng, aix, hpux, qnx, cups
printing = cups

# 3. Logging Options:
# this tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/log.%m

# Put a capping on the size of the log files (in Kb).
max log size = 50

# Set the log (verbosity) level (0 <= log level <= 10)
; log level = 3

# 4. Security and Domain Membership Options:
# This option is important for security. It allows you to restrict
# connections to machines which are on your local network. The
# following example restricts access to two C class networks and
# the "loopback" interface. For more examples of the syntax see
# the smb.conf man page. Do not enable this if (tcp/ip) name resolution does
# not work for all the hosts in your network.
;   hosts allow = 192.168.1. 192.168.2. 127.

# Uncomment this if you want a guest account, you must add this to /etc/passwd
# otherwise the user "nobody" is used
;  guest account = pcguest
# Allow users to map to guest:
map to guest = Bad User

# Security mode. Most people will want user level security. See
# security_level.txt for details.
security = user
# Use password server option only with security = server or security = domain
# When using security = domain, you should use password server = *
;   password server = <NT-Server-Name>
;   password server = *

# Password Level allows matching of _n_ characters of the password for
# all combinations of upper and lower case.
;  password level = 8
;  username level = 8

# You may wish to use password encryption. Please read
# ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
# Do not enable this option unless you have read those documents
# Encrypted passwords are required for any use of samba in a Windows NT domain
# The smbpasswd file is only required by a server doing authentication, thus
# members of a domain do not need one.
encrypt passwords = yes

# The following are needed to allow password changing from Windows to
# also update the Linux system password.
# NOTE: Use these with 'encrypt passwords' and 'smb passwd file' above.
# NOTE2: You do NOT need these to allow workstations to change only
#        the encrypted SMB passwords. They allow the Unix password
#        to be kept in sync with the SMB password.
;  unix password sync = Yes
# You either need to setup a passwd program and passwd chat, or
# enable pam password change
;  pam password change = yes
;  passwd program = /usr/bin/passwd %u
;  passwd chat = *New*UNIX*password* %n\n *Re*ype*new*UNIX*password* %n\n;*passwd:*all*authentication*tokens*updated*successfully*

# Unix users can map to different SMB User names
;  username map = /etc/samba/smbusers

# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
;   include = /etc/samba/smb.conf.%m

# Options for using winbind. Winbind allows you to do all account and
# authentication from a Windows or samba domain controller, creating
# accounts on the fly, and maintaining a mapping of Windows RIDs to unix uid's
# and gid's. idmap uid and idmap gid are the only required parameters.
#
# winbind separator is the character a user must use between their domain
# name and username, defaults to "\"
;  winbind separator = +
#
# winbind use default domain allows you to have winbind return usernames
# in the form user instead of DOMAIN+user for the domain listed in the
# workgroup parameter.
;  winbind use default domain = yes
#
# template homedir determines the home directory for winbind users, with
# %D expanding to their domain name and %U expanding to their username:
;  template homedir = /home/%D/%U

# When using winbind, you may want to have samba create home directories
# on the fly for authenticated users. Ensure that /etc/pam.d/samba is
# using 'service=system-auth-winbind' in pam_stack modules, and then
# enable obedience of pam restrictions below:
;  obey pam restrictions = yes

#
# template shell determines the shell users authenticated by winbind get
;  template shell = /bin/bash

# 5. Browser Control and Networking Options:
# Most people will find that this option gives better performance.
# See speed.txt and the manual pages for details
socket options = TCP_NODELAY SO_SNDBUF=8192 SO_RCVBUF=8192

# Configure Samba to use multiple interfaces
# If you have multiple network interfaces then you must list them
# here. See the man page for details.
;   interfaces = 192.168.12.2/24 192.168.13.2/24

# Configure remote browse list synchronisation here
#  request announcement to, or browse list sync from:
#       a specific host or from / to a whole subnet (see below)
;   remote browse sync = 192.168.3.25 192.168.5.255
# Cause this host to announce itself to local subnets here
;   remote announce = 192.168.1.255 192.168.2.44

# set local master to no if you don't want Samba to become a master
# browser on your network. Otherwise the normal election rules apply
;   local master = no

# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
;   os level = 33

# Domain Master specifies Samba to be the Domain Master Browser. This
# allows Samba to collate browse lists between subnets. Don't use this
# if you already have a Windows NT domain controller doing this job
;   domain master = yes

# Preferred Master causes Samba to force a local browser election on startup
# and gives it a slightly higher chance of winning the election
;   preferred master = yes

# 6. Domain Control Options:
# Enable this if you want Samba to be a domain logon server for
# Windows95 workstations or Primary Domain Controller for WinNT and Win2k
;   domain logons = yes

# if you enable domain logons then you may want a per-machine or
# per user logon script
# run a specific logon batch file per workstation (machine)
;   logon script = %m.bat
# run a specific logon batch file per username
;   logon script = %U.bat

# Where to store roaming profiles for WinNT and Win2k
#        %L substitutes for this servers netbios name, %U is username
#        You must uncomment the [Profiles] share below
;   logon path = \\%L\Profiles\%U

# Where to store roaming profiles for Win9x. Be careful with this as it also
# impacts where Win2k finds it's /HOME share
; logon home = \\%L\%U\.profile


# The add user script is used by a domain member to add local user accounts
# that have been authenticated by the domain controller, or when adding
# users via the Windows NT Tools (ie User Manager for Domains).

# Scripts for file (passwd, smbpasswd) backend:
; add user script = /usr/sbin/useradd -s /bin/false '%u'
; delete user script = /usr/sbin/userdel '%s'
; add user to group script = /usr/bin/gpasswd -a '%u' '%g'
; delete user from group script = /usr/bin/gpasswd -d '%u' '%g'
; set primary group script = /usr/sbin/usermod -g '%g' '%u'
; add group script = /usr/sbin/groupadd %g && getent group '%g'|awk -F: '{print $3}'
; delete group script = /usr/sbin/groupdel '%g'

# Scripts for LDAP backend (assumes nss_ldap is in use on the domain controller.
# Needs IDEALX scripts, and configuration in smbldap_conf.pm.
# This assumes you've installed the IDEALX scripts into /usr/share/samba/scripts...
; add user script = /usr/share/samba/scripts/smbldap-useradd.pl '%u'
; delete user script = /usr/share/samba/scripts/smbldap-userdel.pl '%u'
; add user to group script = /usr/share/samba/scripts/smbldap-groupmod.pl -m '%u' '%g'
; delete user from group script = /usr/share/samba/scripts/smbldap-groupmod.pl -x '%u' '%g'
; set primary group script = /usr/share/samba/scripts/smbldap-usermod.pl -g '%g' '%u'
; add group script = /usr/share/samba/scripts/smbldap-groupadd.pl '%g' && /usr/share/samba/scripts/smbldap-groupshow.pl %g|awk '/^gidNumber:/ {print $2}'
; delete group script = /usr/share/samba/scripts/smbldap-userdel.pl '%g'


# The add machine script is use by a samba server configured as a domain
# controller to add local machine accounts when adding machines to the domain.
# The script must work from the command line when replacing the macros,
# or the operation will fail. Check that groups exist if forcing a group.
# Script for domain controller for adding machines:
; add machine script = /usr/sbin/useradd -d /dev/null -g machines -c 'Machine Account' -s /bin/false '%u'
# Script for domain controller with LDAP backend for adding machines (You need
# the IDEALX scripts, and to configure the smbldap_conf.pm first):
; add machine script = /usr/share/samba/scripts/smbldap-useradd.pl -w -d /dev/null -g machines -c 'Machine Account' -s /bin/false '%u'

# Domain groups:
# Domain groups are now configured by using the 'net groupmap' tool

# Samba Password Database configuration:
# Samba now has runtime-configurable password database backends.
# smbpasswd is for backwards compatibility only Default (not recommended),
# new installations should use tdbsam or ldap.
; passdb backend = smbpasswd
# TDB backend
; passdb backend = tdbsam
# LDAP with fallback to smbpasswd guest
# Enable SSL by using an ldaps url, or enable tls with 'ldap ssl' below.
; passdb backend = ldapsam:ldaps://ldap.mydomain.com
# Use the samba2 LDAP schema:
; passdb backend = ldapsam_compat:ldaps://ldap.mydomain.com

# idmap uid account range:
# This is a range of unix user-id's that samba will map non-unix RIDs to,
# such as when using Winbind
; idmap uid = 10000-20000
; idmap gid = 10000-20000

# LDAP configuration for Domain Controlling:
# The account (dn) that samba uses to access the LDAP server
# This account needs to have write access to the LDAP tree
# You will need to give samba the password for this dn, by
# running 'smbpasswd -w mypassword'
; ldap admin dn = cn=root,dc=mydomain,dc=com
; ldap ssl = start_tls
# start_tls should run on 389, but samba defaults incorrectly to 636
; ldap port = 389
; ldap suffix = dc=mydomain,dc=com
; ldap server = ldap.mydomain.com
# Seperate suffixes are available for machines, users, groups, and idmap, if
# ldap suffix appears first, it is appended to the specific suffix.
# Example for a unix-ish directory layout:
; ldap machine suffix = ou=Hosts
; ldap user suffix = ou=People
; ldap group suffix = ou=Group
; ldap idmap suffix = ou=Idmap
# Example for AD-ish layout:
; ldap machine suffix = cn=Computers
; ldap user suffix = cn=Users
; ldap group suffix = cn=Groups
; ldap idmap suffix = cn=Idmap


# 7. Name Resolution Options:
# All NetBIOS names must be resolved to IP Addresses
# 'Name Resolve Order' allows the named resolution mechanism to be specified
# the default order is "host lmhosts wins bcast". "host" means use the unix
# system gethostbyname() function call that will use either /etc/hosts OR
# DNS or NIS depending on the settings of /etc/host.config, /etc/nsswitch.conf
# and the /etc/resolv.conf file. "host" therefore is system configuration
# dependant. This parameter is most often of use to prevent DNS lookups
# in order to resolve NetBIOS names to IP Addresses. Use with care!
# The example below excludes use of name resolution for machines that are NOT
# on the local network segment
# - OR - are not deliberately to be known via lmhosts or via WINS.
; name resolve order = wins host lmhosts bcast

# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable it's WINS Server
;   wins support = yes

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
#       Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
;   wins server = w.x.y.z

# WINS Proxy - Tells Samba to answer name resolution queries on
# behalf of a non WINS capable client, for this to work there must be
# at least one  WINS Server on the network. The default is NO.
;   wins proxy = yes

# DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
# via DNS nslookups. The built-in default for versions 1.9.17 is yes,
# this has been changed in version 1.9.18 to no.
dns proxy = no
guest account = scary
restrict anonymous = no
guest ok = yes
domain master = no
preferred master = no
max protocol = NT
acl compatibility = winnt
ldap ssl = No
server signing = Auto

# 8. File Naming Options:
# Case Preservation can be handy - system default is _no_
# NOTE: These can be set on a per share basis
;  preserve case = no
;  short preserve case = no
# Default case is normally upper case for all DOS files
;  default case = lower
# Be very careful with case sensitivity - it can break things!
;  case sensitive = no

# Enabling internationalization:
# you can match a Windows code page with a UNIX character set.
# Windows: 437 (US), 737 (GREEK), 850 (Latin1 - Western European),
# 852 (Czech), 861 ('<img'>), 932 (Japanese),
# 936 (Simplified Chin.), 949 (Korean Hangul),
# 950 (Trad. Chin.).
# More detail about code page is in
# "http://www.microsoft.com/globaldev/reference/oslocversion.mspx"
# UNIX: ISO8859-1 (Western European), ISO8859-2 (Eastern Eu.),
# ISO8859-5 (Russian Cyrillic), KOI8-R (Alt-Russ. Cyril.)
# This is an example for french users:
;   dos charset = 850
;   unix charset = ISO8859-1


#============================ Share Definitions ==============================
[homes]
comment = Home Directories
browseable = no
read only = no
# You can enable VFS recycle bin on a per share basis:
# Uncomment the next 2 lines (make sure you create a
# .recycle folder in the base of the share and ensure
# all users will have write access to it. See
# examples/VFS/recycle/REAME in the samba docs for details
;   vfs object = /usr/lib/samba/vfs/recycle.so

# Un-comment the following and create the netlogon directory for Domain Logons
; [netlogon]
;   comment = Network Logon Service
;   path = /var/lib/samba/netlogon
;   guest ok = yes
;   writable = no

# Un-comment the following to provide a specific roving profile share
# the default is to use the user's home directory
;[Profiles]
;    path = /var/lib/samba/profiles
;    browseable = no
;    guest ok = yes
# This script can be enabled to create profile directories on the fly
# You may want to turn off guest acces if you enable this, as it
# hasn't been thoroughly tested.
;root preexec = PROFILE=/var/lib/samba/profiles/%u; if [ ! -e $PROFILE ];;                then mkdir -pm700 $PROFILE; chown %u:%g $PROFILE;fi

# NOTE: If you have a CUPS print system there is no need to
# specifically define each individual printer.
# You must configure the samba printers with the appropriate Windows
# drivers on your Windows clients. On the Samba server no filtering is
# done. If you wish that the server provides the driver and the clients
# send PostScript ("Generic PostScript Printer" under Windows), you have
# to swap the 'print command' line below with the commented one.
[printers]
comment = All Printers
path = /var/spool/samba
browseable = no
# set to yes to allow user 'guest account' to print.
guest ok = no
printable = yes

# This share is used for Windows NT-style point-and-print support.
# To be able to install drivers, you need to be either root, or listed
# in the printer admin parameter above. Note that you also need write access
# to the directory and share definition to be able to upload the drivers.
# For more information on this, please see the Printing Support Section of
# /usr/share/doc/samba-<version>/Samba-HOWTO-Collection.pdf
[print$]
path = /var/lib/samba/printers
write list = @adm root

[Aliens]
path = /mnt/storage/Aliens/
read only = no

[backups]
path = /mnt/storage/backups/
read only = no

[Clips]
path = /mnt/storage/Clips/
read only = no

[Docs]
path = /mnt/storage/Docs/
read only = no

[Downloads]
path = /mnt/storage/Downloads/
read only = no

[Fun]
path = /mnt/storage/Fun/
read only = no

[Howtos]
path = /mnt/storage/Howtos/
read only = no

[Install]
path = /mnt/storage/Install/
read only = no

[Movies]
path = /mnt/storage/Movies/
read only = no

[mp3z]
path = /mnt/storage/mp3z/
read only = no

[Pics]
path = /mnt/storage/Pics/
read only = no


Моля Ви помагайте ако имате някакви идеи.
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zeridon

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Голям load от samba
« Отговор #1 -: Jan 16, 2008, 10:48 »
Първо като гледам конфигурацията ми изглежда малко омотана ама кво да се прави. Явно имаш windowski машини които са боднати в домейн управляван от самбата.

Общи насоки:
 * махни всичко излишно и го спри изрично - winlogon, domainlogon, printing
 * сложи си име на машината ... няма да повярваш колко помага за някои работи
 * монтирай си файловите системи с правилни опции (noatime върши чудеса)
 * ако XFS-а е пълен над 70% става доста бавен на определени моменти.
 * XFS като цяло се държи бавно (за сметка на това е доста стабилен)
 * намери си от някъде книжката SAMBA 3 - има много истина в нея.
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Голям load от samba
« Отговор #2 -: Jan 21, 2008, 14:18 »
Книжката за SAMBA - 3 мога да ти я пратя на CHM, само напиши едно PM с емайл (5,5 МБ)
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