Fix incorrect metric recording

Author: johnramsden

cortes.server.block.toml

@@ -24,4 +24,5 @@ eviction_interval_ms = 1000  # Evict every 1s
 [metrics]
 ip_addr = "127.0.0.1"
 port = 9000
-file_metrics_directory = "./logs"
+file_metrics_directory = "./logs"
+eviction_metrics = true

cortes.server.zns.toml

@@ -25,3 +25,4 @@ eviction_interval_ms = 1000  # Evict every 1s
 ip_addr = "127.0.0.1"
 port = 9000
 file_metrics_directory = "./logs"
+eviction_metrics = true

oxcache/src/server.rs

@@ -459,7 +459,8 @@ async fn handle_connection<T: RemoteBackend + Send + Sync + 'static>(
                                     METRICS.update_metric_histogram_latency("get_hit_latency_ms", start.elapsed(), MetricType::MsLatency);
                                     METRICS.update_metric_counter("hit", 1);
                                     METRICS.update_hitratio(HitType::Hit);
-                                    METRICS.update_metric_counter("written_bytes_total", chunk.size);
+                                    METRICS.update_metric_counter("read_bytes_total", chunk.size);
+                                    METRICS.update_metric_counter("bytes_total", chunk.size);
                                     tracing::debug!("REQ[{}] CACHE HIT completed successfully", request_id);
                                     Ok(())
                                 }
@@ -541,7 +542,8 @@ async fn handle_connection<T: RemoteBackend + Send + Sync + 'static>(
                                     METRICS.update_metric_counter("miss", 1);
                                     METRICS.update_metric_histogram_latency("get_miss_latency_ms", start.elapsed(), MetricType::MsLatency);
                                     METRICS.update_hitratio(HitType::Miss);
-                                    METRICS.update_metric_counter("read_bytes_total", chunk_size);
+                                    METRICS.update_metric_counter("written_bytes_total", chunk_size);
+                                    METRICS.update_metric_counter("bytes_total", chunk_size);
                                     tracing::debug!("REQ[{}] CACHE MISS completed successfully", request_id);
                                     Ok(write_response)
                                 }
@@ -551,7 +553,6 @@ async fn handle_connection<T: RemoteBackend + Send + Sync + 'static>(
                             std::io::Error::new(std::io::ErrorKind::Other, format!("cache.get_or_insert_with failed: {}", e))
                         })?;
                         tracing::debug!("REQ[{}] Request completed successfully", request_id);
-                        METRICS.update_metric_counter("bytes_total", chunk_size);
                     }
                     request::Request::Close => {
                         tracing::debug!("Received close request");