每次我尝试启动mysql时，它都会保持大约2秒，然后崩溃并显示消息:
7:15:02 PM [mysql] Error: MySQL shutdown unexpectedly
7:15:02 PM [mysql] This may be due to a blocked port, missing dependencies,
7:15:02 PM [mysql] improper privileges, a crash, or a shutdown by another method.
7:15:02 PM [mysql] Press the Logs button to view error logs and check
7:15:02 PM [mysql] the Windows Event Viewer for more clues
7:15:02 PM [mysql] If you need more help, copy and post this
7:15:02 PM [mysql] entire log window on the forums
MySQL错误日志文件如下:
InnoDB: using atomic writes.
2020-11-11 7:55:25 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2020-11-11 7:55:25 0 [Note] InnoDB: Uses event mutexes
2020-11-11 7:55:25 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-11-11 7:55:25 0 [Note] InnoDB: Number of pools: 1
2020-11-11 7:55:25 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-11-11 7:55:25 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2020-11-11 7:55:25 0 [Note] InnoDB: Completed initialization of buffer pool
2020-11-11 7:55:25 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=300288
2020-11-11 7:55:26 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-11-11 7:55:26 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2020-11-11 7:55:26 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-11-11 7:55:26 0 [Note] InnoDB: Setting file 'D:XAMPmysqldataibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-11-11 7:55:26 0 [Note] InnoDB: File 'D:XAMPmysqldataibtmp1' size is now 12 MB.
2020-11-11 7:55:26 0 [Note] InnoDB: Waiting for purge to start
2020-11-11 7:55:26 0 [Note] InnoDB: 10.4.14 started; log sequence number 300297; transaction id 171
2020-11-11 7:55:26 0 [Note] InnoDB: Loading buffer pool(s) from D:XAMPmysqldataib_buffer_pool
2020-11-11 7:55:26 0 [Note] Plugin 'FEEDBACK' is disabled.
2020-11-11 7:55:26 0 [Note] Server socket created on IP: '::'.
my.ini
# Example MySQL config file for small systems.
#
# This is for a system with little memory (<= 64M) where MySQL is only used
# from time to time and it's important that the mysqld daemon
# doesn't use much resources.
#
# You can copy this file to
# D:/XAMP/mysql/bin/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is D:/XAMP/mysql/data) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.
# The following options will be passed to all MySQL clients
[client]
# password = your_password
port=3306
socket="D:/XAMP/mysql/mysql.sock"
# Here follows entries for some specific programs
# The MySQL server
default-character-set=utf8mb4
[mysqld]
port=3306
socket="D:/XAMP/mysql/mysql.sock"
basedir="D:/XAMP/mysql"
tmpdir="D:/XAMP/tmp"
datadir="D:/XAMP/mysql/data"
pid_file="mysql.pid"
# enable-named-pipe
key_buffer=16M
max_allowed_packet=1M
sort_buffer_size=512K
net_buffer_length=8K
read_buffer_size=256K
read_rnd_buffer_size=512K
myisam_sort_buffer_size=8M
log_error="mysql_error.log"
# Change here for bind listening
# bind-address="127.0.0.1"
# bind-address = ::1 # for ipv6
# Where do all the plugins live
plugin_dir="D:/XAMP/mysql/lib/plugin/"
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
# commented in by lampp security
#skip-networking
#skip-federated
# Replication Master Server (default)
# binary logging is required for replication
# log-bin deactivated by default since XAMPP 1.4.11
#log-bin=mysql-bin
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id =1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
# where you replace <host>, <user>, <password> by quoted strings and
# <port> by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host = <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user = <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin
# Point the following paths to different dedicated disks
#tmpdir = "D:/XAMP/tmp"
#log-update = /path-to-dedicated-directory/hostname
# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000
# Comment the following if you are using InnoDB tables
#skip-innodb
innodb_data_home_dir="D:/XAMP/mysql/data"
innodb_data_file_path=ibdata1:10M:autoextend
innodb_log_group_home_dir="D:/XAMP/mysql/data"
#innodb_log_arch_dir = "D:/XAMP/mysql/data"
## You can set .._buffer_pool_size up to 50 - 80 %
## of RAM but beware of setting memory usage too high
innodb_buffer_pool_size=48M
## Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size=5M
innodb_log_buffer_size=8M
innodb_flush_log_at_trx_commit=1
innodb_lock_wait_timeout=50
innodb_flush_method=normal
## UTF 8 Settings
#init-connect='SET NAMES utf8'
#collation_server=utf8_unicode_ci
#character_set_server=utf8
#skip-character-set-client-handshake
#character_sets-dir="D:/XAMP/mysql/share/charsets"
sql_mode=NO_ZERO_IN_DATE,NO_ZERO_DATE,NO_ENGINE_SUBSTITUTION
log_bin_trust_function_creators=1
character-set-server=utf8mb4
collation-server=utf8mb4_general_ci
[mysqldump]
max_allowed_packet=16M
[mysql]
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[isamchk]
key_buffer=20M
sort_buffer_size=20M
read_buffer=2M
write_buffer=2M
[myisamchk]
key_buffer=20M
sort_buffer_size=20M
read_buffer=2M
write_buffer=2M
[mysqlhotcopy]
一切都工作得很好，直到大约一个星期前，我已经尝试增加innoDB缓冲池和设置flush方法为正常，没有任何工作。如有任何帮助，不胜感激。
如果XAMPP没有以管理员身份运行，则可能出现此问题。
- 确保XAMPP以Administrator用户安装
- 端口3306可用，没有其他MySQL实例正在运行
- 检查防火墙，确保端口3306没有被分配
通常通过安装XAMPP和第一次启动服务，它提示在Windows防火墙中添加条目，允许Apache端口80和MySQL端口3306。我相信如果在您的情况下缺少条目，那么在Windows防火墙中添加3306条目或卸载>>重新启动系统>>重新安装XAMPP。