【求助】【在线等】12G内存的服务器，MySQL依旧使完了Swap！

鬼树雾爻

万能的CU

我的MySQL是mysql-5.1.45-linux-x86_64-icc-glibc23，二进制的。服务器12G内存。/proc/sys/vm/swappiness 没有禁用。

运行24小时左右内存使用情况如下：
                   total       used       free     shared    buffers     cached
Mem:      12292940   10807284    1485656          0     167200    3367332
-/+ buffers/cache:    7272752    5020188
Swap:      2096472    2096356        116

请教各位大侠！

my.cnf配置文件如下
#################################################################
[mysqld]
port=3306
socket=/data/mysql/mysql.sock
datadir=/data/mysql

memlock
innodb_flush_method=O_DIRECT

skip-host-cache
skip-name-resolve
back_log = 512
max_connections = 1024
max_connect_errors = 10
table_cache = 2048
max_allowed_packet = 500M
binlog_cache_size = 1M
max_heap_table_size = 128M
sort_buffer_size = 64M
join_buffer_size = 64M
thread_cache_size = 512
thread_concurrency = 48
query_cache_size = 512M
query_cache_limit = 32M
query_cache_type =1
#default_table_type = MYISAM
thread_stack = 256K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 128M
server-id = 1
log-bin = mysql-bin
slow_query_log = 1
slow_query_log_file = /data/mysql/slowquery.log
long_query_time = 2
log-queries-not-using-indexes
tmpdir = /tmp
key_buffer = 4096M
key_buffer_size = 512M
read_buffer_size = 128M
read_rnd_buffer_size = 128M
bulk_insert_buffer_size = 128M
myisam_sort_buffer_size = 128M
sync_binlog = 1
character-set-server = utf8
log-bin-trust-function-creators = 1
wait_timeout = 7200
interactive-timeout = 7200

innodb_additional_mem_pool_size=20M
innodb_buffer_pool_size=5G
innodb_data_home_dir=/data/mysql
innodb_data_file_path=ibdata1:1024M:autoextend
innodb_log_group_home_dir = /data/mysql
innodb_file_io_threads = 4
innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 1
innodb_log_file_size = 512M
innodb_log_buffer_size = 8M
#innodb_autoextend_increment = 512
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
#innodb_use_sys_malloc=0
innodb_lock_wait_timeout = 120

[mysql.server]
user=mysql

[mysqld_safe]
err-log=/data/mysql/mysqld.log
pid-file=/data/mysql/mysqld.pid
#################################################################

鬼树雾爻

自己顶~

小版主杀手

自己顶~
鬼树雾爻 发表于 2011-12-13 14:13

    key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections

你算下 按你这样配置 你要配多大内存才能跑起来

小版主杀手

max_allowed_packet = 500M
慢查询日志 索引日志 也都开启了

ooooldman

   换小型机把

鬼树雾爻

……

开始调整，在上传，请高手指点。

飞鸿无痕

回复 1# 鬼树雾爻

把那些session级别的变量都设置小一点。