Add debug log to FailOnMismatch tee behaviour (#1323)

Co-authored-by: Lucas Kent <rubickent@gmail.com>

shotover/src/transforms/tee.rs

@@ -6,7 +6,7 @@ use anyhow::Result;
 use async_trait::async_trait;
 use metrics::{register_counter, Counter};
 use serde::Deserialize;
-use tracing::trace;
+use tracing::{debug, trace};
 
 pub struct TeeBuilder {
  pub tx: TransformChainBuilder,
@@ -170,10 +170,22 @@ impl Transform for Tee {
  .process_request(requests_wrapper.clone(), self.timeout_micros),
  requests_wrapper.call_next_transform()
  );
- let tee_response = tee_result?;
+ let mut tee_response = tee_result?;
  let mut chain_response = chain_result?;
 
  if !chain_response.eq(&tee_response) {
+ debug!(
+ "Tee mismatch: \nchain response: {:?} \ntee response: {:?}",
+ chain_response
+ .iter_mut()
+ .map(|m| m.to_high_level_string())
+ .collect::<Vec<_>>(),
+ tee_response
+ .iter_mut()
+ .map(|m| m.to_high_level_string())
+ .collect::<Vec<_>>()
+ );
+
  for message in &mut chain_response {
  *message = message.to_error_response(
  "ERR The responses from the Tee subchain and down-chain did not match and behavior is set to fail on mismatch".into())?;