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MySQL 多实例的装置【MySQL教程】,MySQL

作者:搜教程发布时间:2019-12-01分类:MySQL教程浏览:51评论:0


导读:Step1.准备工作封闭防火墙;装置MySQL依赖于libaio库;下载,解压,重命名MySQL的实行文件;新建用户组和用户等准备工作在此不再赘述。...
Step 1 . 准备工作

封闭防火墙; 装置 MySQL依赖于libaio 库;下载,解压,重命名 MySQL的实行文件;新建用户组和用户 等准备工作在此不再赘述。

可实行文件目次为 /data/mysql57

增加用户和组的指令

groupadd mysql
useradd mysql -g mysql

Step 2 . 增加环境变量

在/etc/profile文件中,追加 PATH=${PATH}:/data/mysql57/bin/

保存后,如须要马上见效,可实行 source /etc/profile 。

step 3 . 建立目次并受权

在data根目次下实行

mkdir -p mysql3306/data mysql3306/mysql_log mysql3306/tmp mysql3307/data  mysql3307/mysql_log  mysql3307/tmp mysqld_multi/log

建立纪录log的文件,此步骤不可少。

touch /data/mysql3306/mysql_log/mysql3306.errtouch /data/mysql3307/mysql_log/mysql3307.err

给予目次和文件权限

chown -R mysql.mysql mysql3* mysqld_multi

在本测试案例中,mysql57是从别的效劳上copy来的,不是直接下载解压的,所以多了下面的两步受权操纵。

chmod -R 755 /data/mysql57/bin
chmod -R 755 /data/mysql57/support-files

step 4 . 编辑my.cnf

[client]
host=localhost
socket = /tmp/mysql.sock 
default-character-set=utf8mb4
#loose-local-infile=0

[mysqld]
user=mysql
log_bin_trust_function_creators=1
secure_file_priv='/tmp'

########server setting#######
sql_mode = "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
character-set-server=utf8mb4
collation_server=utf8mb4_unicode_ci
lower_case_table_names = 0
skip_name_resolve = 1
#max_connect_errors = 1000
max_connections = 2000
thread_cache_size=256
#thread_stack= 262144
#back_log=80
max_allowed_packet = 134217728
event_scheduler = 1 
local-infile=0
#lower_case_table_names = 1
explicit_defaults_for_timestamp = 1
expire_logs_days = 7
log_bin_trust_function_creators =1

####.frm/.ibd files qty related
open_files_limit=65535
innodb_open_files=65535
table_open_cache=65535
table_definition_cache=65535

#### seesion buffer related
read_buffer_size = 262144
read_rnd_buffer_size = 524288
sort_buffer_size = 8388608
join_buffer_size = 8388608

####memory table size 
tmp_table_size =67108864
max_heap_table_size=67108864

####timeout
interactive_timeout = 1800
wait_timeout = 1800
# connect_timeout=10

########slow query ########
slow_query_log = 1
log_slow_slave_statements = 1
#log_queries_not_using_indexes = 1
log_throttle_queries_not_using_indexes = 10
long_query_time = 1
#min_examined_row_limit = 10000

########innodb settings########
innodb_buffer_pool_size = 10737418240
innodb_buffer_pool_instances = 16 
innodb_buffer_pool_dump_pct = 40
innodb_lru_scan_depth = 2048
innodb_page_cleaners = 16
#innodb_purge_threads = 4
innodb_sort_buffer_size = 67108864
#innodb_file_per_table = 1
#innodb_flush_log_at_trx_commit = 1

innodb_undo_log_truncate = 1
innodb_undo_tablespaces = 3 
innodb_max_undo_log_size = 2147483648
innodb_purge_rseg_truncate_frequency = 128

innodb_log_file_size = 1073741824
innodb_log_files_in_group = 3
innodb_log_buffer_size = 16777216
innodb_flush_method = O_DIRECT
innodb_flush_neighbors = 0
innodb_print_all_deadlocks = 1

innodb_strict_mode = 1
#innodb_lock_wait_timeout = 50

innodb_io_capacity = 32768
innodb_io_capacity_max = 65536
innodb_thread_concurrency = 32
innodb_write_io_threads = 8
innodb_read_io_threads = 8

########replication settings########
master_info_repository = TABLE
relay_log_info_repository = TABLE

gtid_mode = on
enforce_gtid_consistency = 1
binlog_gtid_simple_recovery=1
relay_log_recovery = 1

slave-parallel-type = LOGICAL_CLOCK
slave-parallel-workers = 16
slave_transaction_retries=128
slave_preserve_commit_order=1

log_slave_updates=1
binlog_format = ROW
log_timestamps=system

binlog_rows_query_log_events = 1
binlog_row_image='full' 
slave_skip_errors = ddl_exist_errors

########semi sync replication settings########
##plugin_dir=/data/mysql/plugin/
#plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
#rpl_semi_sync_master_enabled = 1
#rpl_semi_sync_master_timeout = 5000
#rpl_semi_sync_slave_enabled = 1

[mysqld_multi]
mysqld = /data/mysql57/bin/mysqld_safe
mysqladmin = /data/mysql57/bin/mysqladmin
log = /data/mysqld_multi/log/mysqld_multi.log

[mysqld3306]  
basedir = /data/mysql57
mysqladmin=mysqladmin
datadir=/data/mysql3306/data
port=3306  
server_id=102473306
socket= /tmp/mysql_3306.sock
tmpdir = /data/mysql3306/tmp
pid-file = /data/mysql3306/mysql_log/mysql3306.pid
slow_query_log_file = /data/mysql3306/mysql_log/mysql3306_slow_new.log  
log-error = /data/mysql3306/mysql_log/mysql3306.err
general_log_file= /data/mysql3306/mysql_log/mysql3306.genlog
log-bin = /data/mysql3306/mysql_log/mysql3306_bin
relay_log = /data/mysql3306/mysql_log/relay3306.log

innodb_buffer_pool_size = 90G
innodb_buffer_pool_instances = 8

[mysqld3307]
basedir = /data/mysql57
mysqladmin=mysqladmin
datadir=/data/mysql3307/data
port=3307
server_id=102473307
socket= /tmp/mysql_3307.sock
tmpdir = /data/mysql3307/tmp
pid-file = /data/mysql3307/mysql_log/mysql3307.pid
slow_query_log_file = /data/mysql3307/mysql_log/mysql3307_slow_new.log
log-error = /data/mysql3307/mysql_log/mysql3307.err
general_log_file= /data/mysql3307/mysql_log/mysql3307.genlog
log-bin = /data/mysql3307/mysql_log/mysql3307_bin
relay_log = /data/mysql3307/mysql_log/relay3307.log

innodb_buffer_pool_size = 90G
innodb_buffer_pool_instances = 8

[mysqldump]
quick

step 5 . 初始化实例

初始化3306端口的实例,注重发生的暂时暗码。

/data/mysql57/bin/mysqld --defaults-file=/etc/my.cnf --initialize --user=mysql --basedir=/data/mysql57  --datadir=/data/mysql3306/data

初始化3307端口的实例,注重发生的暂时暗码。

/data/mysql57/bin/mysqld --defaults-file=/etc/my.cnf --initialize --user=mysql --basedir=/data/mysql57  --datadir=/data/mysql3307/data

step 6 . 复制生成mysqld_multi并增加到开机启动

cp /data/mysql57/support-files/mysqld_multi.server /etc/init.d/mysqld_multi
chkconfig  --add mysqld_multi

step 7 . 多实例Mysqld的开启

开启悉数实例

mysqld_multi start

检察开启状况(检察悉数实例状况)

mysqld_multi report

开启指定实例

开启/etc/my.cnf中[mysqld3306]个中mysqld背面的数字为标签,比方3306标签

mysqld_multi start 3306

一样开启3307标签实例

mysqld_multi start 3307

(注重:此处没有说经由过程 mysqld_multi stop 敕令举行封闭实例,为何不说,由于敕令无效。Step 9 的操纵会让它变成有用)

step 8 . 第一次登入实例,修正root账号暗码

多实例登入需指定 socket 参数

本测试3306实例登入的体式格局为:

mysql  -S /tmp/mysql_3306.sock -uroot --port 3306 -p

step 9 . 给予经由过程mysqld_multi stop封闭实例的权限。

封闭实例须要设置root用户及暗码, 修正 /etc/my.cnf文件。

在 [client] 位置增加

user=root
password=暗码

由于文件中须要保存账号暗码,有平安风险。现实环境中要不要云云设置,还需根据具体状况和平安请求而定。

经由以上步骤的操纵,此效劳器胜利装置了2个MySQL实例,一个Port为3306,另一个Port为3307

以上就是MySQL 多实例的装置的细致内容,更多请关注ki4网别的相干文章!

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