retry on any transport error with a source

libs/sdk-common/src/tonic_wrap/mod.rs

@@ -36,12 +36,6 @@ macro_rules! with_connection_retry {
     ($f:expr) => {{
         use log::debug;
         use std::error::Error;
-        const BROKEN_CONNECTION_STRINGS: [&str; 4] = [
-            "http2 error: keep-alive timed out",
-            "connection error: address not available",
-            "connection error: timed out",
-            "connection error: unexpected end of file",
-        ];
 
         async {
             let res = $f.await;
@@ -73,18 +67,13 @@ macro_rules! with_connection_retry {
                 None => return Err(status),
             };
 
-            // It's a bit of a guess which errors can occur here. hyper Io errors start
-            // with 'connection error'. These are some of the errors seen before.
-            if !BROKEN_CONNECTION_STRINGS.contains(&source.to_string().as_str()) {
-                debug!("transport error string is: '{}'", source.to_string());
-                return Err(status);
-            }
-
             debug!(
-                "with_connection_fallback: initial call failed due to broken connection. Retrying fallback."
+                "with_connection_fallback: got transport error with source '{}'.
+                Retrying fallback.",
+                source.to_string()
             );
 
             $f.await
         }
-   }};
+    }};
 }