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Início / dba / Perguntas / 105218
Accepted
simplifiedDB
simplifiedDB
Asked: 2015-06-27 04:12:32 +0800 CST2015-06-27 04:12:32 +0800 CST 2015-06-27 04:12:32 +0800 CST

Replicação de várias fontes em um único escravo com várias instâncias do MySQL

  • 772

eu tinha 1 instância do mysql 5.6 em um servidor A (Slave S)

1 Mysql instalado no servidor B (Master M1)

1 MySql instalado no servidor C ( Master M2 )

At Slave end :

I have created one more instance by creating one more my.conf file from existing my.cnf in Slave and placed it in "C:\Program Files (x86)\MySQL\MySQL Server 5.6\my.conf" which looks like this : 

 # MySQL Server Instance Configuration File
 # ----------------------------------------------------------------------
 # Generated by the MySQL Server Instance Configuration Wizard
 #
 #
 # Installation Instructions
 # ----------------------------------------------------------------------
 #
 # On Linux you can copy this file to /etc/my.cnf to set global options,
 # mysql-data-dir/my.cnf to set server-specific options
 # (@localstatedir@ for this installation) or to
 # ~/.my.cnf to set user-specific options.
 #
 # On Windows you should keep this file in the installation directory 
      # of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
    # make sure the server reads the config file use the startup option 
 # "--defaults-file". 
 #
 # To run run the server from the command line, execute this in a 
 # command line shell, e.g.
 # mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
 #
 # To install the server as a Windows service manually, execute this in a 
 # command line shell, e.g.
 # mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL              Server X.Y\my.ini"
 #
 # And then execute this in a command line shell to start the server, e.g.
 # net start MySQLXY
 #
 #
 # Guildlines for editing this file
 # ----------------------------------------------------------------------
 #
 # In this file, you can use all long options that the program supports.
 # If you want to know the options a program supports, start the program
 # with the "--help" option. 
 #
 # More detailed information about the individual options can also be
 # found in the manual.
 #
 #
 # CLIENT SECTION
 # ----------------------------------------------------------------------
 #
 # The following options will be read by MySQL client applications.
 # Note that only client applications shipped by MySQL are guaranteed
 # to read this section. If you want your own MySQL client program to
 # honor these values, you need to specify it as an option during the
 # MySQL client library initialization.
 #
  [client]

     port=3306
     #ssl-ca=ca.pem
     #ssl-cert=client-cert.pem
     #ssl-key=client-key.pem

    [mysql]

      default-character-set=utf8


  # SERVER SECTION
  # ----------------------------------------------------------------------
  #
  # The following options will be read by the MySQL Server. Make sure that
  # you have installed the server correctly (see above) so it reads this 
  # file.
  #
[mysqld]
  server-id=1
  log-bin=mysql-bin
  binlog_format=ROW
  # The TCP/IP Port the MySQL Server will listen on
  port=3306

   innodb_file_per_table = 1
   innodb_file_format = barracuda
   max_allowed_packet = 256M
   innodb_lock_wait_timeout=120
   transaction-isolation = READ-COMMITTED
   interactive_timeout=300
   wait_timeout=300

 #Path to installation directory. All paths are usually resolved relative        to this.
   basedir="C:/Program Files (x86)/MySQL/MySQL Server 5.6/"

#Path to the database root
   datadir="C:/ProgramData/MySQL/MySQL Server 5.6/Data/"

# The default character set that will be used when a new schema or table is
# created and no character set is defined
   character-set-server=utf8

# The default storage engine that will be used when create new tables when
   default-storage-engine=INNODB

# The default storage engine that will be used for temporary tables
   default-tmp-storage-engine=INNODB

# Set the SQL mode to strict
   sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

# The maximum amount of concurrent sessions the MySQL server will
# allow. One of these connections will be reserved for a user with
# SUPER privileges to allow the administrator to login even if the
# connection limit has been reached.
 max_connections=1510

# Query cache is used to cache SELECT results and later return them
# without actual executing the same query once again. Having the query
# cache enabled may result in significant speed improvements, if your
# have a lot of identical queries and rarely changing tables. See the
# "Qcache_lowmem_prunes" status variable to check if the current value
# is high enough for your load.
# Note: In case your tables change very often or if your queries are
# textually different every time, the query cache may result in a
# slowdown instead of a performance improvement.
   query_cache_size=164M

# The number of open tables for all threads. Increasing this value
# increases the number of file descriptors that mysqld requires.
# Therefore you have to make sure to set the amount of open files
# allowed to at least 4096 in the variable "open-files-limit" in
# section [mysqld_safe]
    table_cache=3020

# Maximum size for internal (in-memory) temporary tables. If a table
# grows larger than this value, it is automatically converted to disk
# based table This limitation is for a single table. There can be many
# of them.
    tmp_table_size=30M


# How many threads we should keep in a cache for reuse. When a client
# disconnects, the client's threads are put in the cache if there aren't
# more than thread_cache_size threads from before.  This greatly reduces
# the amount of thread creations needed if you have a lot of new
# connections. (Normally this doesn't give a notable performance
# improvement if you have a good thread implementation.)
    thread_cache_size=64

#*** MyISAM Specific options

# The maximum size of the temporary file MySQL is allowed to use while
# recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
# If the file-size would be bigger than this, the index will be created
# through the key cache (which is slower).
     myisam_max_sort_file_size=100G

# If the temporary file used for fast index creation would be bigger
# than using the key cache by the amount specified here, then prefer the
# key cache method.  This is mainly used to force long character keys in
# large tables to use the slower key cache method to create the index.
      myisam_sort_buffer_size=30M

# Size of the Key Buffer, used to cache index blocks for MyISAM tables.
# Do not set it larger than 30% of your available memory, as some memory
# is also required by the OS to cache rows. Even if you're not using
# MyISAM tables, you should still set it to 8-64M as it will also be
# used for internal temporary disk tables.
      key_buffer_size=252M

# Size of the buffer used for doing full table scans of MyISAM tables.
# Allocated per thread, if a full scan is needed.
      read_buffer_size=64K
      read_rnd_buffer_size=256K

# This buffer is allocated when MySQL needs to rebuild the index in
# REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
# into an empty table. It is allocated per thread so be careful with
# large settings.
     sort_buffer_size=256K


#*** INNODB Specific options ***


# Use this option if you have a MySQL server with InnoDB support enabled
# but you do not plan to use it. This will save memory and disk space
# and speed up some things.
#skip-innodb

# Additional memory pool that is used by InnoDB to store metadata
# information.  If InnoDB requires more memory for this purpose it will
# start to allocate it from the OS.  As this is fast enough on most
# recent operating systems, you normally do not need to change this
# value. SHOW INNODB STATUS will display the current amount used.
    innodb_additional_mem_pool_size=11M

# If set to 1, InnoDB will flush (fsync) the transaction logs to the
# disk at each commit, which offers full ACID behavior. If you are
# willing to compromise this safety, and you are running small
# transactions, you may set this to 0 or 2 to reduce disk I/O to the
# logs. Value 0 means that the log is only written to the log file and
# the log file flushed to disk approximately once per second. Value 2
# means the log is written to the log file at each commit, but the log
# file is only flushed to disk approximately once per second.
    innodb_flush_log_at_trx_commit=1

# The size of the buffer InnoDB uses for buffering log data. As soon as
# it is full, InnoDB will have to flush it to disk. As it is flushed
# once per second anyway, it does not make sense to have it very large
# (even with long transactions).
     innodb_log_buffer_size=5M

# InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and
# row data. The bigger you set this the less disk I/O is needed to
# access data in tables. On a dedicated database server you may set this
# parameter up to 80% of the machine physical memory size. Do not set it
# too large, though, because competition of the physical memory may
# cause paging in the operating system.  Note that on 32bit systems you
# might be limited to 2-3.5G of user level memory per process, so do not 
# set it too high.
    innodb_buffer_pool_size=489M

# Size of each log file in a log group. You should set the combined size
# of log files to about 25%-100% of your buffer pool size to avoid
# unneeded buffer pool flush activity on log file overwrite. However,
# note that a larger logfile size will increase the time needed for the
# recovery process.
  innodb_log_file_size=98M

# Number of threads allowed inside the InnoDB kernel. The optimal value
# depends highly on the application, hardware as well as the OS
# scheduler properties. A too high value may lead to thread thrashing.
  innodb_thread_concurrency=8


 [mysqld1]

  basedir ="C:\Program Files (x86)\MySQL\MySQL Server 5.6"

  port = 3307

  enable-named-pipe

  socket = mypipe1


 [mysqld2]

   basedir ="C:\Program Files (x86)\MySQL\MySQL Server 5.6"

   port = 3308

   enable-named-pipe

   socket = mypipe2

Agora eu quero replicar M1 e M2 para os escravos. Como devo fazer isso?

windows replication
  • 1 1 respostas
  • 522 Views

1 respostas

  • Voted
  1. Best Answer
    winmutt
    2015-07-04T09:37:28+08:002015-07-04T09:37:28+08:00

    Pasta mais feia da história. Esteja ciente de que se seu escravo não tiver significativamente mais hardware do que seu M1 e M2, ele provavelmente ficará para trás na replicação. Isso não requer nada de especial na configuração da replicação normal. Copie os dados M1 (mysqldump ou alguma outra solução adequada) para a primeira instância, faça o login na primeira instância escrava e execute um CHANGE MASTER. Agora faça a mesma coisa com M2 e o segundo escravo.

    • 0

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