nicht angemeldet
Hallo Forum,
ich habe aufgrund steigender Besucherzahlen einen Serverumzug durchgeführt. Dabei habe ich gliehczeitig einen Softwareupgrade vollzogen.
Neues System:
AMD Opteron 1218 Dual Core mit 4 GB RAM sollte für meine Seite mit 150.000 Views und 3000 Besuchern pro Tag vollkommen ausreichen.
Kurzzusammenfassung
-------------------
Vorher:
Debian Sarge
Apache2
PHP4
MySQL4.1
Nachher:
Debian ETch
Apache2.2
PHP5
MySQL5.0
-------------------
Ansonsten laufen auf dem System: Mailserver, FTP-Server
Vorher war es der Apache der mir sorgen bereitete und die CPU voll auslastete. Nach dem Serverumzug ist es der MySQL-server anscheinend:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11819 mysql 15 0 1177m 221m 5952 S 126 5.7 37:42.65 mysqld
12029 root 15 0 11128 1752 948 R 2 0.0 0:00.16 top
10945 www-data 15 0 108m 10m 5596 S 1 0.3 0:01.03 apache2
11125 www-data 16 0 108m 11m 5828 S 1 0.3 0:00.69 apache2
11147 www-data 15 0 108m 9844 4200 S 1 0.2 0:00.58 apache2
11164 www-data 17 0 108m 10m 5052 S 1 0.3 0:00.52 apache2
11167 www-data 15 0 108m 10m 5344 S 1 0.3 0:00.76 apache2
11700 www-data 15 0 108m 10m 5244 S 1 0.3 0:00.40 apache2
11703 www-data 15 0 108m 10m 5072 S 1 0.3 0:00.52 apache2
10427 www-data 15 0 108m 11m 5900 S 0 0.3 0:01.18 apache2
10434 www-data 15 0 108m 10m 5520 S 0 0.3 0:01.07 apache2
10567 www-data 15 0 108m 11m 5716 S 0 0.3 0:00.95 apache2
10981 www-data 15 0 108m 10m 5500 S 0 0.3 0:00.71 apache2
11103 www-data 15 0 108m 10m 5076 S 0 0.3 0:00.56 apache2
11115 www-data 15 0 108m 10m 5028 S 0 0.3 0:00.57 apache2
11141 www-data 15 0 108m 10m 5392 S 0 0.3 0:00.62 apache2
11179 www-data 15 0 108m 10m 5300 S 0 0.3 0:00.87 apache2
11181 www-data 15 0 108m 10m 4676 S 0 0.3 0:00.41 apache2
11213 www-data 15 0 108m 10m 5560 S 0 0.3 0:00.92 apache2
11629 www-data 15 0 108m 10m 5060 S 0 0.3 0:00.22 apache2
11671 www-data 15 0 108m 10m 5044 S 0 0.3 0:00.45 apache2
11884 www-data 15 0 108m 10m 5136 S 0 0.3 0:00.46 apache2
11931 www-data 15 0 108m 9844 4232 S 0 0.2 0:00.21 apache2
1 root 15 0 6120 688 564 S 0 0.0 0:01.38 init
2 root RT 0 0 0 0 S 0 0.0 0:00.24 migration/0
Meine my.cnf:
Opteron1:~# cat /etc/mysql/my.cnf
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/run/mysqld/mysqld.sock
character_set = utf8
default-character-set = utf8
# The MySQL server
[mysqld]
character-set-server = utf8
default-character-set = utf8
init-connect='SET NAMES utf8'
port = 3306
socket = /var/run/mysqld/mysqld.sock
skip-locking
# key_buffer_size sollte ca. 25% des gesamten RAMs ausmachen
key_buffer = 1024M
# key_cache_block_size = 1024
max_allowed_packet = 1M
table_cache = 1000
# table_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
# thread_cache_size = 8
thread_cache_size = 101
# Query Cache
query_cache_type=1
query_cache_size = 32M
query_cache_limit = 1M
# Try number of CPU's*2 for thread_concurrency
# thread_concurrency = 4
thread_concurrency = 8
# Testzweck nach tuning.sh
concurrent_insert=2
low_priority_updates=1
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
#log = /var/log/mysql/mysql.log
log-error = /var/log/mysql.err
#
# Error logging goes to syslog. This is a Debian improvement :)
#
# Here you can see queries with especially long duration
log_slow_queries = /var/log/mysql/mysql-slow.log
long_query_time = 2
# log-queries-not-using-indexes
[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 = 1024M
#sort_buffer_size = 256M
#read_buffer = 2M
#write_buffer = 2M
#[myisamchk]
#key_buffer = 1024M
#sort_buffer_size = 256M
#read_buffer = 2M
#write_buffer = 2M
[isamchk]
key_buffer=128M
sort_buffer_size=128M
read_buffer=2M
write_buffer=2M
[myisamchk]
key_buffer=128M
sort_buffer_size=128M
read_buffer=2M
write_buffer=2M
[mysqlhotcopy]
interactive-timeout