mysql的1067错误

由于要升级MySQL到V5.6，所以拷贝my.ini和数据文件到新的系统上。

在启动服务时，又出现1067错误！

查看，主机名.err文件（xiaobin-PC.err）

2013-12-02 20:23:22 3684 [Note] Plugin 'FEDERATED' is disabled.
2013-12-02 20:23:22 171c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2013-12-02 20:23:22 3684 [Note] InnoDB: The InnoDB memory heap is disabled
2013-12-02 20:23:22 3684 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2013-12-02 20:23:22 3684 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-12-02 20:23:22 3684 [Note] InnoDB: Not using CPU crc32 instructions
2013-12-02 20:23:22 3684 [Note] InnoDB: Initializing buffer pool, size = 47.0M
2013-12-02 20:23:22 3684 [Note] InnoDB: Completed initialization of buffer pool
2013-12-02 20:23:22 3684 [Note] InnoDB: Highest supported file format is Barracuda.
2013-12-02 20:23:23 3684 [Warning] InnoDB: Resizing redo log from 2*3072 to 2*1536 pages, LSN=1625977
2013-12-02 20:23:23 3684 [Warning] InnoDB: Starting to delete and rewrite log files.
2013-12-02 20:23:23 3684 [Note] InnoDB: Setting log file .\ib_logfile101 size to 24 MB
2013-12-02 20:23:23 3684 [Note] InnoDB: Setting log file .\ib_logfile1 size to 24 MB
2013-12-02 20:23:24 3684 [Note] InnoDB: Renaming log file .\ib_logfile101 to .\ib_logfile0
2013-12-02 20:23:24 3684 [Warning] InnoDB: New log files created, LSN=1625977
2013-12-02 20:23:24 3684 [Note] InnoDB: 128 rollback segment(s) are active.
2013-12-02 20:23:24 3684 [Note] InnoDB: Waiting for purge to start
2013-12-02 20:23:24 3684 [Note] InnoDB: 5.6.14 started; log sequence number 1625977
2013-12-02 20:23:24 3684 [ERROR] mysql56: unknown variable 'table_cache=256'
2013-12-02 20:23:24 3684 [ERROR] Aborting

从err文件中可以看到错误主要是“未知变量‘table_cache=256’”。

在系统变量中我们找到三个以“table”开头的全局变量：“table_definition_cache”、“table_open_cache”和“table_open_cache_instances”

第一个变量是系统缺省设置；而第三个是系统缺省实例数；

那么，只有第二个是我们要使用的。

对于，这种猜测使用，看看之前是否有文档做出过详细的说明。

在V5.1文档里找到了答案：table_open_cache替换table_cache做为新的变量名称。

table_cache

Deprecated	5.1.3, by table_open_cache
Removed	5.1.3
Command-Line Format	`--table_cache=#`
Option-File Format	`table_cache`
System Variable Name	`table_cache`
Variable Scope	Global
Dynamic Variable	Yes
	Permitted Values
	Type	`numeric`
	Default	`64`
	Range	`1 .. 524288`

This is the old name of table_open_cache before MySQL 5.1.3. From 5.1.3 on, use table_open_cache instead.

重新启动mysql：net start mysql56

正常启动mysql了！

附：my.ini（V5.6）

# 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 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
#
#
# Guildlines 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.
#
#
# 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]
port=3306
[mysql]
default-character-set=utf8
# 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.
#
[mysqld]
# The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved relative to this.
#basedir="E:/Program Files/MySQL/MySQL Server 5.5/"
basedir="E:/Program Files/MySQL56/"
#Path to the database root
#datadir="E:/Program Files/MySQL/MySQL Server 5.5/Data/"
datadir="E:/Program Files/MySQL56/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=utf8
# 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"
# 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=100
# Query cache is used to cache SELECT results and later return them
# without actual executing the same query once again. Having the query
# cache enabled may result in significant speed improvements, if your
# have a lot of identical queries and rarely changing tables. See the
# "Qcache_lowmem_prunes" status variable to check if the current value
# is high enough for your load.
# Note: In case your tables change very often or if your queries are
# textually different every time, the query cache may result in a
# slowdown instead of a performance improvement.
query_cache_size=0
# 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_cache=256
table_open_cache=256
# 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=17M
# 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=8
#*** 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
# If the temporary file used for fast index creation would be bigger
# than using the key cache by the amount specified here, then prefer the
# key cache method. This is mainly used to force long character keys in
# large tables to use the slower key cache method to create the index.
myisam_sort_buffer_size=34M
# 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=25M
# 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
# This buffer is allocated when MySQL needs to rebuild the index in
# REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
# into an empty table. It is allocated per thread so be careful with
# large settings.
sort_buffer_size=256K
#*** INNODB Specific options ***
# 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
# Additional memory pool that is used by InnoDB to store metadata
# information. If InnoDB requires more memory for this purpose it will
# start to allocate it from the OS. As this is fast enough on most
# recent operating systems, you normally do not need to change this
# value. SHOW INNODB STATUS will display the current amount used.
innodb_additional_mem_pool_size=2M
# 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=47M
# 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=24M
# 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=8

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