diff --git a/dragonfly-client/src/task/mod.rs b/dragonfly-client/src/task/mod.rs
index 09b76020..b4ee5ded 100644
--- a/dragonfly-client/src/task/mod.rs
+++ b/dragonfly-client/src/task/mod.rs
@@ -231,7 +231,13 @@ impl Task {
                 return Err(err);
             }
         };
-        info!("interested pieces: {:?}", interested_pieces);
+        info!(
+            "interested pieces: {:?}",
+            interested_pieces
+                .iter()
+                .map(|p| p.number)
+                .collect::<Vec<u32>>()
+        );
 
         // Construct the pieces for the download task started response.
         let mut pieces = Vec::new();
@@ -338,6 +344,9 @@ impl Task {
         info!(
             "interested pieces after removing the finished piece: {:?}",
             interested_pieces
+                .iter()
+                .map(|p| p.number)
+                .collect::<Vec<u32>>()
         );
 
         // Check if all pieces are downloaded.
@@ -552,7 +561,14 @@ impl Task {
                 }
                 announce_peer_response::Response::NormalTaskResponse(response) => {
                     // If the task is normal, download the pieces from the remote peer.
-                    info!("normal task response: {:?}", response);
+                    info!(
+                        "normal task response: {:?}",
+                        response
+                            .candidate_parents
+                            .iter()
+                            .map(|p| p.id.clone())
+                            .collect::<Vec<String>>()
+                    );
 
                     // Send the download peer started request.
                     in_stream_tx
diff --git a/dragonfly-client/src/task/piece.rs b/dragonfly-client/src/task/piece.rs
index 80199019..5c7f5332 100644
--- a/dragonfly-client/src/task/piece.rs
+++ b/dragonfly-client/src/task/piece.rs
@@ -154,8 +154,13 @@ impl Piece {
             }
 
             info!(
-                "calculate interested pieces by range: {:?}, {:?}",
-                range, pieces
+                "calculate interested pieces by range: {:?}, piece length: {:?}. pieces: {:?}",
+                range,
+                piece_length,
+                pieces
+                    .iter()
+                    .map(|piece| piece.number)
+                    .collect::<Vec<u32>>()
             );
             return Ok(pieces);
         }
@@ -194,8 +199,12 @@ impl Piece {
         }
 
         info!(
-            "calculate interested pieces by content length: {:?}",
+            "calculate interested pieces by content length, piece length: {:?}, pieces: {:?}",
+            piece_length,
             pieces
+                .iter()
+                .map(|piece| piece.number)
+                .collect::<Vec<u32>>()
         );
         Ok(pieces)
     }