mysql5.7.18没有了my-default.ini文件，该在哪里配置

Question

mysql5.7.18没有了my-default.ini文件，该在哪里配置

Answer 1

这么多找不到的给你一个你复制过去改成 my.ini即可

Other default tuning values

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 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

Guidelines 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.

For advice on how to change settings please see

https://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html

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]

pipe=

socket=MYSQL

port=3307

[mysql]
no-beep

default-character-set=

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.

server_type=3

[mysqld]

The next three options are mutually exclusive to SERVER_PORT below.

skip-networking

enable-named-pipe

shared-memory

shared-memory-base-name=MYSQL

The Pipe the MySQL Server will use

socket=MYSQL

The TCP/IP Port the MySQL Server will listen on

port=3307

Path to installation directory. All paths are usually resolved relative to this.

basedir="C:/Program Files (x86)/MySQL/MySQL Server 5.7/"

Path to the database root

datadir=C:/ProgramData/MySQL/MySQL Server 5.7\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=

The default storage engine that will be used when create new tables when

default-storage-engine=INNODB

Set the SQL mode to strict

sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

General and Slow logging.

log-output=FILE

general-log=0

general_log_file="LX--20210610QKU.log"

slow-query-log=1

slow_query_log_file="LX--20210610QKU-slow.log"

long_query_time=10

Error Logging.

log-error="LX--20210610QKU.err"

***** Group Replication Related *****

Specifies the base name to use for binary log files. With binary logging

enabled, the server logs all statements that change data to the binary

log, which is used for backup and replication.

log-bin

***** Group Replication Related *****

Specifies the server ID. For servers that are used in a replication topology,

you must specify a unique server ID for each replication server, in the

range from 1 to 2^32 − 1. “Unique” means that each ID must be different

from every other ID in use by any other replication source or replica.

server-id=1

***** Group Replication Related *****

The host name or IP address of the replica to be reported to the source

during replica registration. This value appears in the output of SHOW SLAVE HOSTS

on the source server. Leave the value unset if you do not want the replica to

register itself with the source.

report_host=0.0

***** Group Replication Related *****

Defines the algorithm used to hash the writes extracted during a transaction. If you

are using Group Replication, this variable must be set to XXHASH64 because the process

of extracting the writes from a transaction is required for conflict detection on all

group members.

transaction_write_set_extraction=0.0

lower_case_table_names=1

Secure File Priv.

secure-file-priv="C:/ProgramData/MySQL/MySQL Server 5.7/Uploads"

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=151

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_open_cache=2000

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=225M

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=10

#*** 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

The size of the buffer that is allocated when sorting MyISAM indexes

during a REPAIR TABLE or when creating indexes with CREATE INDEX

or ALTER TABLE.

myisam_sort_buffer_size=438M

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=8M

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

#*** INNODB Specific options ***

innodb_data_home_dir=

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

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=1M

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=8M

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=48M

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=33

The increment size (in MB) for extending the size of an auto-extend InnoDB system tablespace file when it becomes full.

innodb_autoextend_increment=64

The number of regions that the InnoDB buffer pool is divided into.

For systems with buffer pools in the multi-gigabyte range, dividing the buffer pool into separate instances can improve concurrency,

by reducing contention as different threads read and write to cached pages.

innodb_buffer_pool_instances=8

Determines the number of threads that can enter InnoDB concurrently.

innodb_concurrency_tickets=5000

Specifies how long in milliseconds (ms) a block inserted into the old sublist must stay there after its first access before

it can be moved to the new sublist.

innodb_old_blocks_time=1000

It specifies the maximum number of .ibd files that MySQL can keep open at one time. The minimum value is 10.

innodb_open_files=300

When this variable is enabled, InnoDB updates statistics during metadata statements.

innodb_stats_on_metadata=0

When innodb_file_per_table is enabled (the default in 5.6.6 and higher), InnoDB stores the data and indexes for each newly created table

in a separate .ibd file, rather than in the system tablespace.

innodb_file_per_table=1

Use the following list of values: 0 for crc32, 1 for strict_crc32, 2 for innodb, 3 for strict_innodb, 4 for none, 5 for strict_none.

innodb_checksum_algorithm=0

The number of outstanding connection requests MySQL can have.

This option is useful when the main MySQL thread gets many connection requests in a very short time.

It then takes some time (although very little) for the main thread to check the connection and start a new thread.

The back_log value indicates how many requests can be stacked during this short time before MySQL momentarily

stops answering new requests.

You need to increase this only if you expect a large number of connections in a short period of time.

back_log=80

If this is set to a nonzero value, all tables are closed every flush_time seconds to free up resources and

synchronize unflushed data to disk.

This option is best used only on systems with minimal resources.

flush_time=0

The minimum size of the buffer that is used for plain index scans, range index scans, and joins that do not use

indexes and thus perform full table scans.

join_buffer_size=256K

The maximum size of one packet or any generated or intermediate string, or any parameter sent by the

mysql_stmt_send_long_data() C API function.

max_allowed_packet=4M

If more than this many successive connection requests from a host are interrupted without a successful connection,

the server blocks that host from performing further connections.

max_connect_errors=100

Changes the number of file descriptors available to mysqld.

You should try increasing the value of this option if mysqld gives you the error "Too many open files".

open_files_limit=4161

If you see many sort_merge_passes per second in SHOW GLOBAL STATUS output, you can consider increasing the

sort_buffer_size value to speed up ORDER BY or GROUP BY operations that cannot be improved with query optimization

or improved indexing.

sort_buffer_size=256K

The number of table definitions (from .frm files) that can be stored in the definition cache.

If you use a large number of tables, you can create a large table definition cache to speed up opening of tables.

The table definition cache takes less space and does not use file descriptors, unlike the normal table cache.

The minimum and default values are both 400.

table_definition_cache=1400

Specify the maximum size of a row-based binary log event, in bytes.

Rows are grouped into events smaller than this size if possible. The value should be a multiple of 256.

binlog_row_event_max_size=8K

If the value of this variable is greater than 0, a replica synchronizes its master.info file to disk.

(using fdatasync()) after every sync_master_info events.

sync_master_info=10000

If the value of this variable is greater than 0, the MySQL server synchronizes its relay log to disk.

(using fdatasync()) after every sync_relay_log writes to the relay log.

sync_relay_log=10000

If the value of this variable is greater than 0, a replica synchronizes its relay-log.info file to disk.

(using fdatasync()) after every sync_relay_log_info transactions.

sync_relay_log_info=10000

Load mysql plugins at start."plugin_x ; plugin_y".

plugin_load

The TCP/IP Port the MySQL Server X Protocol will listen on.

loose_mysqlx_port=33060

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