mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Enterprise 2023-06-21 08:36:38 views: null

Table of contents

1. Encountered problems

Second, find the specific reason for the error

Three, the solution

1. Encountered problems

When there are multiple mysql versions on the computer. The execution path of the previous mysql version may be enabled, so this mysql connection error occurs.

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failu

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Origin blog.csdn.net/m0_52861000/article/details/131289166

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The first startup error com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Solution

troubshooting-sqoop TiDB export table data packets com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Mysql connection error: Communications link failure

If the error is reported according to the microservice project: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

mysql connection error: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

mysql连接com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Connection timed out error

A daily pit: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

MySQL reported an error for the first connection timeout the next morning, the solution com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:

Gerrit mysql error: Communications link failure

Database error: Cause com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure (resolved)

Database error: Cause com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure (resolved)

JDBC连接数据库出现com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

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