show error message when replication connection failed to establish a …

…connection
elixir-ecto · Jan 22, 2025 · 5afa8c9 · 5afa8c9
1 parent bca9131
commit 5afa8c9
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diff --git a/lib/postgrex/replication_connection.ex b/lib/postgrex/replication_connection.ex
@@ -502,6 +502,10 @@ defmodule Postgrex.ReplicationConnection do
         maybe_handle(mod, :handle_connect, [mod_state], %{s | protocol: protocol})
 
       {:error, reason} ->
+        Logger.error(
+          "#{inspect(pid_or_name())} (#{inspect(mod)}) failed to connect to Postgres: #{Exception.format(:error, reason)}"
+        )
+
         if s.auto_reconnect do
           {:keep_state, s, {{:timeout, :backoff}, s.reconnect_backoff, nil}}
         else

diff --git a/lib/postgrex/simple_connection.ex b/lib/postgrex/simple_connection.ex
@@ -362,6 +362,10 @@ defmodule Postgrex.SimpleConnection do
         end
 
       {:error, reason} ->
+        Logger.error(
+          "#{inspect(pid_or_name())} (#{inspect(mod)}) failed to connect to Postgres: #{Exception.format(:error, reason)}"
+        )
+
         if state.auto_reconnect do
           {:keep_state, state, {{:timeout, :backoff}, state.reconnect_backoff, nil}}
         else
@@ -466,6 +470,13 @@ defmodule Postgrex.SimpleConnection do
     end
   end
 
+  defp pid_or_name do
+    case Process.info(self(), :registered_name) do
+      {:registered_name, atom} when is_atom(atom) -> atom
+      _ -> self()
+    end
+  end
+
   defp opts(mod), do: Process.get(mod)
 
   defp put_opts(mod, opts), do: Process.put(mod, opts)