使用talend连接一个mysql数据库，提示没有权限，最后发现mysql服务器的配置中只监听了127.0.0.1的端口，拒绝非本地的请求。通过将/etc/mysql/my.cnf中的bind_address项注释掉，/etc/init.d/mysql restart重启mysql服务器后，talend可以正常的访问该数据库：
root@ubuntu:~/extract/extract_mysql# vi /etc/mysql/my.cnf # # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options, # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html # This will be passed to all mysql clients # It has been reported that passwords should be enclosed with ticks/quotes # escpecially if they contain "#" chars... # Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [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 # # 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 #
使用grant all 对部署talend的机器ip赋予权限：
mysql> grant all on *.* to root@172.28.0.74 idetified by '123456'; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'idetified by '123456'' at line 1 mysql> grant all on *.* to root@172.28.0.74 idetified by '123456'; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'idetified by '123456'' at line 1 mysql> grant all on *.* to 'root'@'172.28.0.74' identified by '123456'; Query OK, 0 rows affected (0.16 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)