DMS endpoint connection test fails for Postgres 15, DMS 3.5.1

Question

I've been successfully running DMS migrations into a Postgres 14 target for some months now. Seeing that DMS 3.5.1 now supports Postgres 15.x, I created a Postgres 15.3 database and tried to setup DMS 3.5.1 against it. Unfortunately I get the following error when running a connection test on the endpoint:

> Test Endpoint failed: Application-Status: 1020912, Application-Message: Cannot connect to ODBC provider Network error has occurred, Application-Detailed-Message: RetCode: SQL_ERROR SqlState: 08001 NativeError: 101 Message: FATAL: no pg_hba.conf entry for host *MY_HOST*, user *MY_USER*, database *MY_DB*, no encryption

I'm using the same CloudFormation templates that were previously successful with Postgres 14. I have also verified that I can connect to the database with the same credentials (using psql).

Accepted Answer

Hey for PostgreSQL 15, SSL is on by default so if you are not using then try updating the rds force ssl parameter to 0 and retry

Answer

I was getting same error, 
After modifying DMS postgress endpoint SSL mode "**none**" to "**require**", 
it resolved my error while doing test endpoint connection 
![Enter image description here](/media/postImages/original/IM69CRhnhVR6a5l4QEJJsCFw)

Answer

Hi, support for pg v15 in DMS v3.5.1 is leading-edge: announced a week ago. See https://docs.aws.amazon.com/dms/latest/userguide/CHAP_ReleaseNotes.html

Given your the strong basis of your trial based on your previous experience (and guessing that you have proper pg_hba.conf  from you v14 activity) , you may well have reached a "teething problem" of this new release. I would suggest you to open a Support case via AWS console. Service teams do not monitor re:Post for such issues.

Especially since https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Target.PostgreSQL.html doesn't mention any restriction specific to pg v15

Best,

Didier

Answer

Have you ensured your security group on your RDS instance allows connections from the host used for DMS?

Answer

I have the same issue as the author, how can I fix this issue?

DMS endpoint connection test fails for Postgres 15, DMS 3.5.1

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