Postgres 10 shutting down on installation in Ubuntu 14
listening on IPv4 address &quot;127.0.0.1&quot;, port 5432, listening on Unix socket &quot;/var/run/postgresql/.s.PGSQL.5432&quot;, database system is ready to accept connections

Just your server starting up.


database system was shut down at 2017-12-16 02:41:39 PST

You always get this message at bootup, it's produced by the &quot;expected state&quot; of the write-ahead log manager.


incomplete startup packet

Nothing happened here.. a client buzzed in and then left., produced by a backend.


received fast shutdown request, aborting any active  transactions, database system is shut down, worker process: logical replication launcher (PID 19050) exited with exit code 1

This is just the postmaster shutting down