32 GB server memory configuration, my. cnf parameter estimate _ MySQL

32 GB server memory configuration, bitsCN.com estimated by the my. cnf parameter

32 GB server memory configuration, my. cnf Parameter estimation

32 GB memory, mysql server configuration parameter change suggestions

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Innodb_file_per_table = 1

Open independent tablespace

Back_log = 300

# Back_log indicates the number of connections that the operating system can maintain in the listening queue.

Max_connections = 8000

# Maximum number of concurrent sessions allowed by the MySQL service

Max_connect_errors = 30

# Maximum number of errors allowed for each client connection

Table_cache = 4096

# Number of tables opened by all threads

Open_files_limit = 10240

Max_allowed_packet = 32 M

# Independent size of each connection. The size increases dynamically

Wait_timeout = 10

# Specify the maximum connection time of a request

Sort_buffer_size = 16 M

# Sort buffering is used to process sorting caused by order by and group by queues.

Join_buffer_size = 16 M

# This buffer is used to optimize full union (full JOINs without indexes ).

Query_cache_size = 128 M

# Query buffering is often used to buffer SELECT results and no direct return results will be executed in the next same query

Transaction_isolation = REPEATABLE-READ

# Set the default transaction isolation level

Thread_stack = 512 K

# The heap size used by the thread. this capacity is reserved for each connection.

Log-bin = mysql-bin

# Enable the binary log function

Innodb_buffer_pool_size = 6G

# InnoDB uses a buffer pool to store indexes and raw data. on an independently used database server, you can set this variable to 80% of the server's physical memory size.

Innodb_file_io_threads = 4

# Number of I/O threads used to synchronize IO operations

Innodb_thread_concurrency = 16

# Number of threads allowed in the InnoDb core

Innodb_log_buffer_size = 16 M

# The buffer size used to buffer log data.

Innodb_log_file_size = 512 M

The size of each log file in the log group.

Innodb_log_files_in_group = 3

# Total number of files in the log Group

Innodb_lock_wait_timeout = 120

# How long should an InnoDB transaction wait for a lock to be approved before being rolled back;

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