所以我想我把mariadb的配置文件搞砸了。我使用专用服务器apache2和mysql。我不知道服务器响应时间是由mysql响应查询的时间过长引起的，还是由代码本身引起的。我已经尝试了一些配置生成器，但我不觉得他们的工作。以下是专用服务器规格： Intel C2750 32 GB RAM 256 GB SSD ```

These groups are read by MariaDB server.

Use it for options that only the server (but not clients) should see

See the examples of server my.cnf files in /usr/share/mysql/

this is read by the standalone daemon and embedded servers

[server]

this is only for the mysqld standalone daemon

[mysqld]

* Basic Settings

user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking

Skip reverse DNS lookup of clients

skip-name-resolve

Instead of skip-networking the default is now to listen only on

localhost which is more compatible and is not less secure.

bind-address = 127.0.0.1

* Fine Tuning

key_buffer_size = 5048M
key-buffer-size = 32M
max_allowed_packet = 2024M
max-allowed-packet = 16M
max-connect-errors = 1000000
thread_stack = 1024K
thread_cache_size = 30

This replaces the startup script and checks MyISAM tables if needed

the first time they are touched

myisam_recover_options = BACKUP
max_connections = 500
table_cache = 100
table_open_cache = 3000
table_definition_cache = 9000
join_buffer_size = 300K
performance_schema = ON

thread_concurrency = 10

max_user_connections = 455

* Query Cache Configuration

query_cache_limit = 1048M
query_cache_size = 0
query_cache_type = 0

slow-query-log = 1
slow-query-log-file = /var/lib/mysql/mysql-slow.log
long_query_time = 1

* Logging and Replication

Both location gets rotated by the cronjob.

Be aware that this log type is a performance killer.

As of 5.1 you can enable the log at runtime!

general_log_file = /var/log/mysql/mysql.log

general_log = 1

Error log - should be very few entries.

log_error = /var/log/mysql/error.log

Enable the slow query log to see queries with especially long duration

slow_query_log_file = /var/log/mysql/mariadb-slow.log

long_query_time = 10

log_slow_rate_limit = 1000

log_slow_verbosity = query_plan

log-queries-not-using-indexes

The following can be used as easy to replay backup logs or for replication.

note: if you are setting up a replication slave, see README.Debian about

other settings you may need to change.

server-id = 1

log_bin = /var/log/mysql/mysql-bin.log

expire_logs_days = 10
max_binlog_size = 100M

binlog_do_db = include_database_name

binlog_ignore_db = exclude_database_name

* InnoDB

InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.

Read the manual for more InnoDB related options. There are many!

innodb_buffer_pool_size = 15G

innodb_s_lock_spin_rounds = 120

innodb_thread_concurrency = 0

innodb_log_file_size = 3G
innodb_buffer_pool_instances = 25

tmp-table-size = 32M
max-heap-table-size = 32M
query-cache-type = 0
query-cache-size = 0
max-connections = 500
thread-cache-size = 50
open-files-limit = 65535
table-definition-cache = 4096
table-open-cache = 100
innodb-flush-method = O_DIRECT
innodb-log-files-in-group = 2
innodb-log-file-size = 512M
innodb-flush-log-at-trx-commit = 2
innodb-file-per-table = 1
innodb-buffer-pool-size = 26G

innodb_buffer_size = 256M

* Security Features

Read the manual, too, if you want chroot!

chroot = /var/lib/mysql/

For generating SSL certificates you can use for example the GUI tool "tinyca".

ssl-ca=/etc/mysql/cacert.pem

ssl-cert=/etc/mysql/server-cert.pem

ssl-key=/etc/mysql/server-key.pem

Accept only connections using the latest and most secure TLS protocol version.

..when MariaDB is compiled with OpenSSL:

ssl-cipher=TLSv1.2

..when MariaDB is compiled with YaSSL (default in Debian):

ssl=on

* Character sets

MySQL/MariaDB default is Latin1, but in Debian we rather default to the full

utf8 4-byte character set. See also client.cnf

character-set-server = utf8mb4
collation-server = utf8mb4_general_ci

* Unix socket authentication plugin is built-in since 10.0.22-6

Needed so the root database user can authenticate without a password but

only when running as the unix root user.

Also available for other users if required.

See https://mariadb.com/kb/en/unix_socket-authentication-plugin/

this is only for embedded server

[embedded]

This group is only read by MariaDB servers, not by MySQL.

If you use the same .cnf file for MySQL and MariaDB,

you can put MariaDB-only options here

[mariadb]

This group is only read by MariaDB-10.1 servers.

If you use the same .cnf file for MariaDB of different versions,

use this group for options that older servers don't understand

[mariadb-10.1]