本次安装环境为:
系 统:centos 6 X86_X64
内 存:不低于4G
mysql 版本:MysqL-boost-5.7.18.tar.gz
本文主要讲解在同主机上部署MysqL多实例 门户网站应用MysqL 多实例场景 百度搜索引擎的数据库就是多实例,一般是从库,列如某个部门的例子,IBM 48核cpu。内存96G,跑3-4个实例;sina 网也是用的多实例,内存48G左右。门户网站使用多实例的目的是配硬件好的服务器,节省idc机柜的空间,同时,跑多实例让硬件资源不浪费,针对一般的服务器最多4个实例即可,1-2两个最合适。 |
多实例缺点:
1、耦合度太高,一个配置文件不好管理。工作开发和运维的统一原则;降低耦合度
MysqL 相关软件包:
yum -y install ncurses-devel libaio-devel cmake
useradd MysqL -s /sbin/nologin -M
下载MysqL 5.7 安装包
wget https://cdn.MysqL.com//Downloads/MysqL-5.7/MysqL-boost-5.7.18.tar.gz
解压安装包
tar -zxf MysqL-boost-5.7.18.tar.gz && cd MysqL-5.7.18
cmake \ -DCMAKE_INSTALL_PREFIX=/u01/app/MysqL/db \ -DSYSconfdIR=/u01/app/MysqL/db/etc \ -DWITH_BOOST=./boost/boost_1_59_0 \ -DWITH_INNOBASE_STORAGE_ENGINE=1 \ -DWITH_PARTITION_STORAGE_ENGINE=1 \ -DWITH_FEDERATED_STORAGE_ENGINE=1 \ -DWITH_BLACKHOLE_STORAGE_ENGINE=1 \ -DWITH_MYISAM_STORAGE_ENGINE=1 \ -DWITH_INNODB_MEMCACHED=1 \ -DWITH_READLINE=1 \ -DENABLED_LOCAL_INFILE=1 \ -DWITH_PARTITION_STORAGE_ENGINE=1 \ -DEXTRA_CHARSETS=all \ -DDEFAULT_CHARSET=utf8 \ -DDEFAULT_COLLATION=utf8_general_ci make -j 24 make install |
#创建数据目录
mkdir -p /data/MysqL/engine/innolog
mkdir -p /data/MysqL/data
mkdir -p /data/MysqL/engine/innodata
mkdir -p /data/MysqL/engine/undo
mkdir -p /data/MysqL/log/MysqL-binlog
mkdir -p /data/MysqL/log/MysqL-relaylog
chown MysqL. /data -R
mkdir /u01/app/MysqL/db/etc
配置my.cnf
[MysqLd] #-------------------------------------basic_my.conf------------------------------------------------------------- #5.7 #author: duxing #modify: 20160902 #version: 0.8 #------------------basic-------------------------------# user=MysqL basedir = /u01/app/MysqL/db datadir = /data/MysqL/data pid-file = /data/MysqL/MysqL.pid default-storage-engine = INNODB transaction_isolation = REPEATABLE-READ binlog_cache_size = 32M max_binlog_size=512M binlog_format=row character-set-server = utf8 port=3306 server-id= 2 #sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' sql_mode='STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ENGINE_SUBSTITUTION,ONLY_FULL_GROUP_BY' explicit_defaults_for_timestamp = true log-error = /data/MysqL/MysqL-error.log slow_query_log long_query_time = 10 log_warnings #------------------basic-------------------------------# #---------------directroy------------------------------# innodb_log_group_home_dir=/data/MysqL/engine/innolog innodb_data_home_dir=/data/MysqL/engine/innodata innodb_data_file_path = ibdata1:500M;ibdata2:150M:autoextend innodb_undo_directory=/data/MysqL/engine/undo log-bin = /data/MysqL/log/MysqL-binlog/MysqL-binlog log-bin-index = /data/MysqL/log/MysqL-binlog/MysqL-binlog.index expire-logs-days=5 relay_log = /data/MysqL/log/MysqL-relaylog/MysqL-relay-bin relay_log_index= /data/MysqL/log/MysqL-relaylog/MysqL-relay-bin.index #relay_log_info_file=/data/MysqL/log/MysqL-relaylog/relay-log.info #---------------directroy------------------------------# #----------------engine--------------------------------# innodb_file_per_table=1 innodb_api_enable_binlog=1 innodb_buffer_pool_size=256M innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size = 16M innodb_log_file_size = 512M innodb_log_files_in_group = 4 innodb_max_dirty_pages_pct = 75 innodb_lock_wait_timeout = 120 innodb_buffer_pool_instances=2 innodb_force_recovery=0 #recover innodb_purge_threads=4 #undo purge innodb_write_io_threads = 16 innodb_read_io_threads = 16 innodb_io_capacity=1200 innodb_old_blocks_pct=37 innodb_old_blocks_time=1000 innodb_undo_tablespaces=12 innodb_undo_logs=40 innodb_commit_concurrency = 1000 #commit/s innodb_thread_concurrency = 1000 #use for cpu mutex innodb_thread_sleep_delay = 200 #ms delay time #innodb_use_native_aio=1 #----------------engine--------------------------------# # ------------global cache -------------------------# read_buffer_size = 32M read_rnd_buffer_size = 128M sort_buffer_size = 64M join_buffer_size = 64M query_cache_size = 128M query_cache_limit = 4M tmp_table_size = 128M # ------------global cache -------------------------# #----------------replicat-----------------------------# #read_only=1 relay_log_purge=0 log_slave_updates=1 slave_parallel_workers=4 log_bin_trust_function_creators=1 binlog_checksum = CRC32 slave_allow_batching = 1 master_verify_checksum = 1 slave_sql_verify_checksum = 1 binlog_rows_query_log_events = 1 gtid-mode=on enforce-gtid-consistency=1 sync-master-info=1 relay_log_purge = 1 #relaylog的自动修复 relay_log_recovery = 1 master_info_repository = TABLE relay_log_info_repository = TABLE #set global rpl_semi_sync_master_enabled = 1 #set global rpl_semi_sync_slave_enabled =1 #rpl_semi_sync_master_timeout=200 #----------------replicat-----------------------------# #-----------------thread------------------------------# table_open_cache = 2048 #reduce open descriptor thread_stack = 256K # *thead_num < useable mem thread_cache_size = 128 #reuse thread in mem #-----------------thread------------------------------# #----------------network-----------------------------# back_log = 512 #skip-networking #skip-grant-tables skip-name-resolve max_connections = 3000 max_connect_errors = 30 table_open_cache = 4096 max_allowed_packet = 64M max_heap_table_size = 512M #----------------network-----------------------------# #-----------------------timeout------------------------# connect-timeout = 10 wait-timeout = 8000 interactive-timeout = 8000 slave-net-timeout = 60 net_read_timeout = 30 net_write_timeout = 60 net_retry_count = 10 net_buffer_length = 16384 #-----------------------timeout------------------------# [MysqL] auto-rehash [client] port=3306 |
删除 /etc/my.cnf
/u01/app/MysqL/db/etc
初始化之前需要查看error 日志
cat /data/MysqL/MysqL-error.log
cd /u01/app/MysqL/db
./bin/MysqLd --initialize --basedir=/u01/app/MysqL/db --datadir=/data/MysqL/data --user=MysqL
# --initialize-insecure option 使用这个初始化数据库之后不再需要登录后进行alter user
#cat /data/MysqL/MysqL-error.log
/u01/app/MysqL/db/bin/MysqLd_safe --skip-grant-tables &
update MysqL.user set authentication_string=password('123.com') where user='root' and Host = 'localhost';
#启动MysqL 服务
/u01/app/MysqL/db/support-files/MysqL.server restart
##需要重新更改密码否则无法正常使用库
alter user 'root'@'localhost' identified by '123.com';
#设置开机自启动
cp /u01/app/MysqL/db/support-files/MysqL.server /etc/init.d/MysqL.server-5.7
chmod +x /etc/init.d/MysqL.server-5.7
chkconfig --addMysqL.server-5.7
#设置环境变量
vim ~/.bashrc
#set MysqL
NHOME=/u01/app/MysqL/db
PATH=$PATH:$NHOME/bin
source ~/.bashrc
MysqL 多实例可以写两个不同的配置文件与不同的端口 初始化库时候直接更改即可