XAMPP 1.7.7 MySQL langsam

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XAMPP 1.7.7 MySQL langsam

Postby bernie69 » 29. December 2011 14:34

Hallo zusammen,

ich bin ein absolutes Greenhorn was MySQL Administration angeht. Ich habe XAMPP 1.7.7 auf einem Server mit Dual core AMD Opteron, 2GB RAM, 2x SATA Platten. MS Windows Server 2008R2. In einer MySQL DB sind mittlerweile knapp 1.5GB an Daten. Die Abfragen sind sehr träge, >30s pro Abfrage.

Die my.ini ist die "Standard" die im mysql/bin liegt. Ich habe noch weitere ini´s gefunden (small, huge, ...). Was muss ich hier bei den ganzen Parametern anpassen, damit die Abfragen zügiger auf der doch eigentlich performanten Hardware laufen?

Danke für alle Tips und Grüße
Bernd

"standard" my.ini
-------------------------------
# Example MySQL config file for small systems.
#
# This is for a system with little memory (<= 64M) where MySQL is only used
# from time to time and it's important that the mysqld daemon
# doesn't use much resources.
#
# You can copy this file to
# C:/xampp/mysql/bin/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is C:/xampp/mysql/data) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MySQL clients
[client]
# password = your_password
port = 3306
socket = "C:/xampp/mysql/mysql.sock"

# Here follows entries for some specific programs

# The MySQL server
[mysqld]
port= 3306
socket= "C:/xampp/mysql/mysql.sock"
basedir="C:/xampp/mysql"
tmpdir="C:/xampp/tmp"
#datadir="C:/xampp/mysql/data"
datadir="D:/mysql_data"
pid_file="mysql.pid"
skip-external-locking
key_buffer = 16M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
log_error="mysql_error.log"
#bind-address="127.0.0.1"


# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
# commented in by lampp security
#skip-networking
skip-federated

# Replication Master Server (default)
# binary logging is required for replication
# log-bin deactivated by default since XAMPP 1.4.11
#log-bin=mysql-bin

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1

# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
# where you replace <host>, <user>, <password> by quoted strings and
# <port> by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host = <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user = <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin


# Point the following paths to different dedicated disks
#tmpdir = "C:/xampp/tmp"
#log-update = /path-to-dedicated-directory/hostname

# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000

# Comment the following if you are using InnoDB tables
#skip-innodb
#innodb_data_home_dir = "C:/xampp/mysql/data"
innodb_data_home_dir = "D:/mysql_data"
innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = "C:/xampp/mysql/data"
innodb_log_group_home_dir = "D:/mysql_data"
#innodb_log_arch_dir = "C:/xampp/mysql/data"
## You can set .._buffer_pool_size up to 50 - 80 %
## of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
## Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

-------------------------------
bernie69
 
Posts: 1
Joined: 29. December 2011 14:26
XAMPP Version: 5.6.3
Operating System: 2008R2

Re: XAMPP 1.7.7 MySQL langsam

Postby Altrea » 29. December 2011 16:57

Hallo bernie69,

Die Standard my.ini Datei ist so ausgelegt, dass auch etwas betagtere Rechner damit laufen können. Sie basiert auf der Datei my-small.ini.
Auf aktuellen Rechnern kann man getrost auf die my-large.ini zurückgreifen, wobei es vorallem auf den RAM ankommt.
Vergleiche einfach mal die my-small.ini und die my-large.ini miteinander, dann wirst du schon sehen, welche Werte du wie verändern solltest (das betrifft vorallem die Speichergrößen im [mysqld] und [myisamchk] Block).

Bechte, dass deine my.ini bereits Pfadangaben besitzt, die deiner Installation spezifisch gesetzt sind. Diese solltest du natürlich nicht ändern.

Und am allerwichtesten: mach vorher ein Backup deiner my.ini, so dass du Problemlos wieder zurückwechseln kannst, falls die neue Konfiguration sich nicht erwartungsgemäß verhält.

mit freundlichen Grüßen,
Altrea
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