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mysql启动报错解决-3
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场景还原：
初始化
#/usr/local/webserver/mysql/bin/mysql_install_db --user=mysql --basedir=/usr/local/webserver/mysql/ --datadir=/home/mysqldata
Installing MySQL system tables...
150205 11:48:00 [Note] Flashcache bypass: disabled
150205 11:48:00 [Note] Flashcache setup error is : ioctl failed
OK
Filling help tables...
150205 11:48:00 [Note] Flashcache bypass: disabled
150205 11:48:00 [Note] Flashcache setup error is : ioctl failed
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/local/webserver/mysql//bin/mysqladmin -u root password ‘new-password‘
/usr/local/webserver/mysql//bin/mysqladmin -u root -h kooxoo17.ktep3.kuxun.cn password ‘new-password‘
Alternatively you can run:
/usr/local/webserver/mysql//bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.
See the manual for more instructions.
You can start the MySQL daemon with:
cd /usr/local/webserver/mysql/ ; /usr/local/webserver/mysql//bin/mysqld_safe &
You can test the MySQL daemon with mysql-test-run.pl
cd /usr/local/webserver/mysql//mysql-test ; perl mysql-test-run.pl
Please report any problems with the /usr/local/webserver/mysql//scripts/mysqlbug script!
Percona recommends that all production deployments be protected with a support
contract (http://www.percona.com/mysql-suppport/) to ensure the highest uptime,
be eligible for hot fixes, and boost your team‘s productivity.
启动
/usr/local/webserver/mysql/bin/mysqld_safe --defaults-file=/home/mysql_config/my.cnf --user=mysql --basedir=/usr/local/webserver/mysql/ --datadir=/home/mysqldata &
未启动成功：
看日志报错如下：
150205 16:17:03 mysqld_safe Starting mysqld daemon with databases from /home/mysqldata
150205 16:17:03 [Warning] ‘--default-character-set‘ is deprecated and will be removed in a future release. Please use ‘--character-set-server‘ instead.
150205 16:17:03 [Warning] ‘--log-long-format‘ is deprecated and will be removed in a future release. Please use ‘--log-short-format‘ instead.
150205 16:17:03 [Warning] ‘--log_slow_queries‘ is deprecated and will be removed in a future release. Please use ‘‘--slow_query_log‘/‘--slow_query_log_file‘‘ instead.
150205 16:17:03 [Warning] --myisam_max_extra_sort_file_size is deprecated and does nothing in this version. It will be removed in a future release.
150205 16:17:03 [Note] Flashcache bypass: disabled
150205 16:17:03 [Note] Flashcache setup error is : ioctl failed
150205 16:17:03 [Note] Flashcache setup error is : ioctl failed
/usr/local/webserver/mysql/libexec/mysqld: File ‘/home/mysql_config/log/mysql-bin.index‘ not found (Errcode: 13)
File ‘/home/mysql_config/log/mysql-bin.index‘ not found (Errcode: 13)
150205 16:17:03 [ERROR] Aborting
150205 16:17:03 [Note] /usr/local/webserver/mysql/libexec/mysqld: Shutdown complete
150205 16:17:03 mysqld_safe mysqld from pid file /home/mysql_config/run/mysql.pid ended
原因：
mkdir -p /home/mysql_config/log
手工创建的这个目录，那么默认是root权限，mysql无法写入，所以不会生成mysql-bin.index这个文件。
解决方法：
chown -R mysql.mysql /home/mysql_config/
原文：http://tenderrain.blog.51cto.com/9202912/1612033
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