报错情况如下(看上去是和数据库有关): com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureThe last packet successfully received from the server was59milliseconds ago. The last packet sent successfully to the server was59milliseconds ago.at sun.reflect.NativeConstructorAccessor...
2017-12-29 10:43:19,776 ERROR [com.alibaba.druid.pool.DruidDataSource] - <init datasource error, url: jdbc:mysql://localhost:3306/hxrc>com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was0ms ago. at sun.reflect.NativeConstruc...
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 按照 这个信息去解决问题 ,走了弯路没有找到问题的根本原因。 二、解决方法 问题解决历程 一 起初真的以为是 MySQL什么连接超时原因,但我还是不敢确定,因为以前用MySQL默认的端口没有什么问题啊。 Caused by: com.mys...
报错:org. apache hadoop. hive. metastore. HiveMetaException: Failed to get schema version / Underlying cause: com mysql jdbc. exceptions. jdbc Communications Exception: Communications link failure 解决方案: 在启动Hive前,没有启动mysql服务, service mysql start 1. 打开mysql服务后,再启动...
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure 1. 2. 3. 4. 5. 6. 7. 8. 解决办法 # 先排除yml配置的数据库连接问题,最关键的几个点有: - driver-class-name: com.mysql.jdbc.Driver # 查看数据库是否有开放权限 ...
Move Over and Click Link 2019-12-03 15:19 − Move Over and Click Link [Documentation] 等待悬浮菜单中的元素出现并单击元素 [Arguments] ${hover_locator} ${opt_locator} Sleep 1s Wai... 燕十三丶 0 212 Needleless Injection Site -Failure Analysis Of Needle-Free Connectors 2019-12-18 14...
报错:org. apache hadoop. hive. metastore. HiveMetaException: Failed to get schema version / Underlying cause: com mysql jdbc. exceptions. jdbc Communications Exception: Communications link failure 解决方案: 在启动Hive前,没有启动mysql服务, ...
具体来说，错误信息指出连接失败的原因是“Communications link failure”，这通常是由于网络连接问题导致的...
简介:java程序启动连接mysql时报错com.mysql.jdbc.exceptions.jdbc4.CommunicationsExcepti:Communications link failur 问题描述: 报错如下: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was0milliseconds ago. The driver has not...
若依分离版本,后端启动一段时间后会提示错误,mysql8版本。Communications link failure 已完成 #I4Y9B6 cuker919 创建于 2022-03-17 13:33 若依分离版本,后端启动一段时间后会提示错误。 第一种错误: 10:35:18.096 [Druid-ConnectionPool-Create-1381864772] ERROR c.a.d.p.DruidDataSource - [run,...