The following code currently won't emit any telemetry:

conn = connect(connection_name="py")
r = conn.execute_string("select 2;")
print(r[0].fetchall())

on the other hand the following code works (sends telemetry)

with connect(connection_name="py") as conn:
    r = conn.execute_string("select 2;")
    print(r[0].fetchall())

The difference is that context manager handles connection closing differently than handler registered atexit. The handler was configured to basically not send telemetry, causing potential loss of observability.

However, the handler is already doing additional REST calls (in majority of cases):

which under the hood does:

This PR proposes to adopt similar approach (send but not retry) in telemetry close handler.