如何修复kaa errer启动后检查日志

Question

我在安装kaa单节点时按照一步一步的步骤进行操作，但是在启动后检查日志时出错.----> cat / var / log / kaa / * | grep错误

这是错误：

2019-01-31 14:14:34,956 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 14:14:34,961 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 14:14:37,769 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 14:14:37,773 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 14:14:37,897 [main] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Cannot create PoolableConnectionFactory (No active connection found for master : Could not connect to HostAddress{host='localhost', port=3306, type='master'}.Connection refused (Connection refused))
2019-01-31 14:14:37,910 [main] ERROR o.s.web.context.ContextLoader - Context initialization failed
2019-01-31 14:30:23,673 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 14:30:23,678 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 14:30:27,142 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 14:30:27,146 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 14:30:27,266 [main] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Cannot create PoolableConnectionFactory (No active connection found for master : Could not connect to HostAddress{host='localhost', port=3306, type='master'}.Connection refused (Connection refused))
2019-01-31 14:30:27,279 [main] ERROR o.s.web.context.ContextLoader - Context initialization failed
2019-01-31 22:34:01,662 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 22:34:01,667 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 22:34:04,979 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000319: Could not get database metadata
2019-01-31 22:34:04,983 [main] ERROR o.h.tool.hbm2ddl.SchemaUpdate - HHH000299: Could not complete schema update
2019-01-31 22:34:05,115 [main] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Cannot create PoolableConnectionFactory (No active connection found for master : Could not connect to HostAddress{host='localhost', port=3306, type='master'}.Connection refused (Connection refused))
2019-01-31 22:34:05,128 [main] ERROR o.s.web.context.ContextLoader - Context initialization failed

谢谢 ：）

Answer 1

你是否正确安装和配置了MaridDB？端口3306是MySQL / MariaDB连接的默认端口。

这里正确的步骤：

1. 安装MariaDB（sudo apt install mariadb *）
2. mysql -u root -p
3. 创建用户'sqladmin'@'localhost'由'admin'识别;授予所有特权。通过GRANT OPTION到'sqladmin'@'localhost'; FLUSH特权;
4. 创建数据库kaa CHARACTER SET utf8 COLLATE utf8_general_ci;