Re: How to debug incomplete message on postgres 12.3 docker

Dave Cramer
www.postgres.rocks

On Sun, 16 Jan 2022 at 10:13, R Batchen <batchenr(at)gmail(dot)com> wrote:

>
> Hello,
>
> I hope i reached the right mailing list, i have psql 12.3 container that
> is the db of apache guacamole container is connected to,
> the apache guacamole stopped working and i started to get this message on
> the postgres:
>
> LOG: incomplete message from client
>
> How can I debug it?
>
> i want to see when and who did the translation and what is the incomplete query ? because i did approached guacamole mailing list and they said my DB is closing connection in the middle of the transaction
>
> and its psql issue and i am not able to debug it because i only have this incomlit msg.
>
> *Is there a way to catch this transaction?*
>
> full logs :
>
> postgres_gqm_1 | 2022-01-13T19:32:24.187916615Z 2022-01-13 19:32:24.187 UTC [4394] LOG: incomplete message from client
>
> guacamole_1 | 2022-01-13T19:32:24.214231454Z 19:32:24.214 [http-nio-8080-exec-6] ERROR o.a.g.rest.RESTExceptionMapper - Unexpected internal error:
> guacamole_1 | 2022-01-13T19:32:24.214398980Z ### Error rolling back transaction. Cause: org.postgresql.util.PSQLException: This connection has been closed.
> guacamole_1 | 2022-01-13T19:32:24.214445260Z ### Cause: org.postgresql.util.PSQLException: This connection has been closed.
>
>
> docker file :
>
> postgres_gqm:
>
> image: postgres:12.3
> environment:
> PGDATA: /var/lib/postgresql/data/guacamole
> POSTGRES_DB: db
> POSTGRES_PASSWORD: XXX
> POSTGRES_USER: user
> restart: always
> volumes:
> - ./init:/docker-entrypoint-initdb.d:ro
> - ./data:/var/lib/postgresql/data:rw
> logging:
> driver: "json-file"
> options:
> max-size: "750m"
>
>
> My guess is that the container dropped the connection somehow. Either
network error or application error. I would look at the logs on the
container.

There is no way to debug this on the postgres side (that I am aware of)

Dave