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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2020/04/10 03:10:12 UTC
[GitHub] [rocketmq-externals] imaffe opened a new issue #554:
[rocketmq-connect-jdbc: if db config wrong,
sink task will repeatedly tries connect to database]
imaffe opened a new issue #554: [rocketmq-connect-jdbc: if db config wrong, sink task will repeatedly tries connect to database]
URL: https://github.com/apache/rocketmq-externals/issues/554
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**BUG REPORT**
1. Please describe the issue you observed:
- What did you do (The steps to reproduce)?
Use a wrong JdbcSinkConnector database configuration, and stop the connector
- What did you expect to see?
Hope it stops prints error message after connector stops:
- What did you see instead?
It keeps on printing
```
2020-04-10 08:19:33 ERROR Druid-ConnectionPool-Create-1988777075 - create connection SQLException, url: jdbc:mysql://127.0.0.1:3307?useSSL=true&verifyServerCertificate=false&serverTimezone=GMT%2B8&characterEncoding=utf8, errorCode 0, state 08S01
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:172) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1644) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779) ~[rocketmq-connect-jdbc-0.0.1-SNAPSHOT.jar:na]
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
```
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