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下面是我的 MySQL 配置文件。我试图了解它是如何工作的。有什么意义[mysqld_safe]?还没有[mysqld]启动 MySQL?为什么在它之后是 log-error 和 pid-file 设置?

[mysqld]
# Settings user and group are ignored when systemd is used (fedora >= 15).
# If you need to run mysqld under different user or group, 
# customize your systemd unit file for mysqld according to the
# instructions in http://fedoraproject.org/wiki/Systemd
user=mysql

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

# Semisynchronous Replication
# http://dev.mysql.com/doc/refman/5.5/en/replication-semisync.html
# uncomment next line on MASTER
;plugin-load=rpl_semi_sync_master=semisync_master.so
# uncomment next line on SLAVE
;plugin-load=rpl_semi_sync_slave=semisync_slave.so

# Others options for Semisynchronous Replication
;rpl_semi_sync_master_enabled=1
;rpl_semi_sync_master_timeout=10
;rpl_semi_sync_slave_enabled=1

# http://dev.mysql.com/doc/refman/5.5/en/performance-schema.html
;performance_schema

innodb_strict_mode=on
sql_mode=TRADITIONAL
;sql_mode=STRICT_TRANS_TABLES,NO_ZERO_DATE,NO_ZERO_IN_DATE
character-set-server=utf8
collation-server=utf8_general_ci

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
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1 回答 1

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您可以使用mysqld或启动 MySQL 服务器mysqld_safemysqld_safe本身可能会尝试执行mysqld,但也可能不会。请参阅文档Google 中mysqld_safe 的第一个结果,顺便说一句):

mysqld_safe 是在 Unix 和 NetWare 上启动 mysqld 服务器的推荐方法。mysqld_safe 添加了一些安全功能,例如在发生错误时重新启动服务器并将运行时信息记录到错误日志文件中。本节后面列出了特定于 NetWare 的行为。

配置文件中的部分[mysqld_safe]是用于mysqld_safe启动 MySQL 服务器而不是mysqld.

于 2013-06-01T13:29:32.300 回答