我遇到了一个类似的问题，我无法从任何地方连接到我的MYSQL Server。它甚至没有加载到MYSL工作台上。这...
Oracle Integration-OIC - Version 18.2.5 and later: Creating DB Connection Fails With Error "CLOUD-0005: Unable to establish connection. Please check connection param
报错:connect to [Default Network] xx.xx.xx.xx:xx failed, Connection refused(111) 报错:SSH protocol handshake error,Socket error:Connection reset by peer 通常是由于存在防火墙或配置策略阻断,您可以通过以下方法排查。 检查服务器的/etc/hosts.allow文件是否存在堡垒机IP,如无,请加入堡垒机IP。同时检查/et...
This preceding command is used to connect to a DB instance in non-SSL mode. If the SSL connection is enabled, an error is reported when you run this command. Fault Locating On the DDS console, click the instance name. On theBasic Informationpage, check whether SSL is enabled. ...
Opening connection ... Connection jdbc:mysql://source.wowip.kr:3306/?user=sourceur&password=sourceps&useServerPrepStmts=false&characterEncoding=UTF-8 The list of schema names could not be retrieved (error: 0). ReverseEngineeringMysqlJdbc.getSchemata :Access denied for user 'sourceur'@'192.168...
DBConnectionError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on 'controller' ([Errno 111] ECONNREFUSED)") [SQL: u'SELECT 1'] 回到顶部 2.查看 mysql 状态 2.1查看 mysql 的最大连接数 mysql>showvariableslike'max_connections';+---+---+|Variable_name|Value|+--...
2021-09-27 09:05:18.381 185184 ERROR keystone DBConnectionError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on 'controller' ([Errno 111] Connection refused)") 2021-09-27 09:05:18.381 185184 ERROR keystone
MISSING_CONNECTION_OPTION, MISSING_NAME_FOR_CHECK_CONSTRAINT, MULTIPLE_LOAD_PATH, NAMESPACE_ALREADY_EXISTS, NAMESPACE_NOT_EMPTY, NAMESPACE_NOT_FOUND, NON_PARTITION_COLUMN, NOT_NULL_ASSERT_VIOLATION, NOT_NULL_CONSTRAINT_VIOLATION, NO_HANDLER_FOR_UDAF, NULLABLE_COLUMN_OR_FIELD, NULLABLE_ROW_ID_ATTR...
DB error: Unable to establish connection (2.481355s) # 子表可以查询 taos> select count(*) from api_log.api_log_20220912_100013093100100000; count(*) | === 48 | Query OK, 1 rows in database (0.003815s) 报错日志 new log file === 09...
1) 查看控制台日志:eas/admin/logs/admin.log com.kingdee.eas.tools.admin.framework.database.exception.DBException: Get database connection failed! cause by java.sql.SQLException: I/O Error: DB server closed connection. 2)进一步查看sqlserver数据库日志;如果是Oracle就查看警告日志或者监听日志 ...