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  • mysql多实例的配置(转)

    1、创建多实例的目录:
    mkdir -p /data/mysql/mysql_3307/{data,tmp,logs}
    mkdir -p /data/mysql/mysql_3308/{data,tmp,logs}
     
    2、修改my.cnf的配置文件
    vi /data/mysql/mysql_3306/my3306.cnf
    #my.cnf
    [client]
    port = 3306
    socket = /data/mysql/mysql_3306/tmp/mysql_3306.sock
     
    [mysql]
    prompt=[3306]>
    #tee=/data/mysql/mysql_3306/data/query.log
    no-auto-rehash
     
    [mysqld]
    user = mysql
    basedir = /usr/local/mysql
    datadir = /data/mysql/mysql_3306/data
    port = 3306
    socket = /data/mysql/mysql_3306/tmp/mysql_3306.sock
    event_scheduler = 0
    tmpdir = /data/mysql/mysql_3306/tmp
     
     
     
    #timeout
    interactive_timeout = 300
    wait_timeout = 300
     
    #character set
    character-set-server = utf8
     
    #open_files_limit = 65535
    max_connections = 100
    max_connect_errors = 100000
     
    skip-name-resolve = 1
    #logs
    log-output=file
    slow_query_log = 1
    slow_query_log_file = slow.log
    log-error = /data/mysql/mysql_3306/data/error.log
    log_warnings = 2
    pid-file = mysql.pid
    long_query_time = 1
    #log-slow-admin-statements = 1
    #log-queries-not-using-indexes = 1
    log-slow-slave-statements = 1
     
     
     
    #binlog
    binlog_format = mixed
    server-id = 203306
    log-bin = /data/mysql/mysql_3306/logs/mybinlog
    binlog_cache_size = 4M
    max_binlog_size = 1G
    max_binlog_cache_size = 2G
    sync_binlog = 0
    expire_logs_days = 10
     
    #relay log
    skip_slave_start = 1
    max_relay_log_size = 1G
    relay_log_purge = 1
    relay_log_recovery = 1
    log_slave_updates
    #slave-skip-errors=1032,1053,1062
     
    explicit_defaults_for_timestamp=1
    #buffers & cache
    table_open_cache = 2048
    table_definition_cache = 2048
    table_open_cache = 2048
    max_heap_table_size = 96M
    sort_buffer_size = 2M
    join_buffer_size = 2M
    thread_cache_size = 256
    query_cache_size = 0
    query_cache_type = 0
    query_cache_limit = 256K
    query_cache_min_res_unit = 512
    thread_stack = 192K
    tmp_table_size = 96M
    key_buffer_size = 8M
    read_buffer_size = 2M
    read_rnd_buffer_size = 16M
    bulk_insert_buffer_size = 32M
     
    #myisam
    myisam_sort_buffer_size = 128M
    myisam_max_sort_file_size = 10G
    myisam_repair_threads = 1
     
    #innodb
    innodb_buffer_pool_size = 100M
    innodb_buffer_pool_instances = 1
    innodb_data_file_path = ibdata1:1G:autoextend
    innodb_flush_log_at_trx_commit = 2
    innodb_log_buffer_size = 64M
    innodb_log_file_size = 256M
    innodb_log_files_in_group = 3
    innodb_max_dirty_pages_pct = 50
    innodb_file_per_table = 1
    innodb_rollback_on_timeout
    innodb_status_file = 1
    innodb_io_capacity = 2000
    transaction_isolation = READ-COMMITTED
    innodb_flush_method = O_DIRECT
     
    [mysqld_safe]
    open_file_limit = 65535
     
     
     
     
    3、复制配置文件到其他实例的目录:
    cp /data/mysql/mysql_3306/my3306.cnf /data/mysql/mysql_3307/my3307.cnf
    cp /data/mysql/mysql_3306/my3306.cnf /data/mysql/mysql_3308/my3308.cnf
     
     
     
    4、修改其他实例的目录路径
    vi /data/mysql/mysql_3307/my3307.cnf
    :%s/3306/3307/g
     
    vi /data/mysql/mysql_3308/my3308.cnf
    :%s/3306/3308/g
     
     
     
    5、赋予权限:
    chown -R mysql:mysql /usr/local/mysql
    chown -R mysql:mysql /data
    chown -R mysql:mysql /opt/mysql
     
     
     
    6、多实例的初始化:
    cd /usr/local/mysql
    ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql/mysql_3306/data --defaults-file=/data/mysql/mysql_3306/my3306.cnf
    ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql/mysql_3307/data --defaults-file=/data/mysql/mysql_3307/my3307.cnf
    ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql/mysql_3308/data --defaults-file=/data/mysql/mysql_3308/my3308.cnf
     
     
    7、启动进程:
    /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_3306/my3306.cnf &
    /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_3307/my3307.cnf &
    /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql_3308/my3308.cnf &
     
     
    8、查看指定文件目录是否存在:(每个实例在启动前都要查看)
    ll /data/mysql/mysql_3306/tmp
    srwxrwxrwx 1 mysql mysql 0 Dec 18 07:08 mysql_3306.sock
     
    ll /data/mysql/mysql_3307/tmp
    srwxrwxrwx 1 mysql mysql 0 Dec 18 07:10 mysql_3307.sock
     
    ll /data/mysql/mysql_3308/tmp
    srwxrwxrwx 1 mysql mysql 0 Dec 18 07:22 mysql_3308.sock
     
     
    9、多实例的登陆方式:
    mysql --protocol=tcp -h 127.0.0.1 -uroot -P3306 --socket=/data/mysql/mysql_3306/tmp/mysql_3306.sock
    mysql --protocol=tcp -h 127.0.0.1 -uroot -P3307 --socket=/data/mysql/mysql_3307/tmp/mysql_3307.sock
    mysql --protocol=tcp -h 127.0.0.1 -uroot -P3308 --socket=/data/mysql/mysql_3308/tmp/mysql_3308.sock
     
     
    10、关闭mysql:
    mysqladmin -S /data/mysql/mysql_3308/tmp/mysql_3306.sock shutdown
    mysqladmin -S /data/mysql/mysql_3308/tmp/mysql_3307.sock shutdown
    mysqladmin -S /data/mysql/mysql_3308/tmp/mysql_3308.sock shutdown

    http://www.cnblogs.com/abobo/p/4172760.html

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  • 原文地址:https://www.cnblogs.com/softidea/p/5308396.html
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