4ss3g4f edited a comment on issue #5414:
URL:
https://github.com/apache/dolphinscheduler/issues/5414#issuecomment-830560388
API logs:
```
[ERROR] 2021-05-01 13:10:27.762
com.alibaba.druid.pool.DruidDataSource:[2572] - create connection SQLException,
url:
jdbc:postgresql://10.100.234.124:5432/dolphinscheduler?characterEncoding=utf8,
errorCode 0, state 08P01
org.postgresql.util.PSQLException: ERROR: no such user
at
org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:438)
at
org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:222)
at
org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:450)
at org.postgresql.Driver.connect(Driver.java:252)
at
com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at
com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1644)
at
com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2570)
```
Seems like can not connect to postgres,

We have delete `id=34` from t_ds_user table, but still same error,
We used crunchydata postgres, should be no issue rught, any postgres
implementation shoud work right ??

What is the problem, please help ??
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