chengshiwen commented on issue #5414:
URL:
https://github.com/apache/dolphinscheduler/issues/5414#issuecomment-830733412
@4ss3g4f Hi, it seems the postgresql connection problem. Could you check the
command in Terminal on some host with `psql`?
```bash
PGPASSWORD=${DATABASE_PASSWORD} psql -h ${DATABASE_HOST} -p ${DATABASE_PORT}
-U ${DATABASE_USERNAME} -d ${DATABASE_DATABASE} -tAc "select 1"
```
eg.
```bash
PGPASSWORD=QiLw{vZlFy7GEs3cVch-+5oU psql -h 10.100.234.124 -p 5432 -U
postgres -d dolphinscheduler -tAc "select 1"
PGPASSWORD=QiLw{vZlFy7GEs3cVch-+5oU psql -h 10.100.234.124 -p 5432 -U
postgres -d dolphinscheduler -tAc "SELECT * FROM public.t_ds_user"
```
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