diff --git a/src/connector/src/sink/iceberg/mod.rs b/src/connector/src/sink/iceberg/mod.rs
index 7f5e24e7d51a2..5fffe83c6a788 100644
--- a/src/connector/src/sink/iceberg/mod.rs
+++ b/src/connector/src/sink/iceberg/mod.rs
@@ -43,9 +43,9 @@ use serde_derive::Deserialize;
 use url::Url;
 use with_options::WithOptions;
 
-use self::prometheus::base_file_metrics_writer::BaseFileWriterWithMetricsBuilder;
-use self::prometheus::partition_metrics_writer::FanoutPartitionedWriterWithMetricsBuilder;
-use self::prometheus::position_delete_metrics_writer::PositionDeleteWriterWithMetricsBuilder;
+use self::prometheus::monitor_base_file_writer::BaseFileWriterWithMetricsBuilder;
+use self::prometheus::monitor_partition_writer::FanoutPartitionedWriterWithMetricsBuilder;
+use self::prometheus::monitor_position_delete_writer::PositionDeleteWriterWithMetricsBuilder;
 use super::{
     Sink, SinkError, SinkWriterParam, SINK_TYPE_APPEND_ONLY, SINK_TYPE_OPTION, SINK_TYPE_UPSERT,
 };
@@ -449,12 +449,12 @@ impl IcebergWriter {
                 .iceberg_position_delete_cache_num
                 .clone(),
         );
-        let euality_delete_builder =
+        let equality_delete_builder =
             builder_helper.equality_delete_writer_builder(unique_column_ids.clone(), 0)?;
         let delta_builder = EqualityDeltaWriterBuilder::new(
             data_file_builder,
             position_delete_builder,
-            euality_delete_builder,
+            equality_delete_builder,
             unique_column_ids,
         );
         let partition_delta_builder = FanoutPartitionedWriterWithMetricsBuilder::new(
diff --git a/src/connector/src/sink/iceberg/prometheus/mod.rs b/src/connector/src/sink/iceberg/prometheus/mod.rs
index 298c549e5b62f..d91cb12acaf53 100644
--- a/src/connector/src/sink/iceberg/prometheus/mod.rs
+++ b/src/connector/src/sink/iceberg/prometheus/mod.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub mod base_file_metrics_writer;
-pub mod partition_metrics_writer;
-pub mod position_delete_metrics_writer;
-pub mod write_metrics_writer;
+pub mod monitor_base_file_writer;
+pub mod monitor_partition_writer;
+pub mod monitor_position_delete_writer;
+pub mod monitor_write_writer;
diff --git a/src/connector/src/sink/iceberg/prometheus/base_file_metrics_writer.rs b/src/connector/src/sink/iceberg/prometheus/monitor_base_file_writer.rs
similarity index 100%
rename from src/connector/src/sink/iceberg/prometheus/base_file_metrics_writer.rs
rename to src/connector/src/sink/iceberg/prometheus/monitor_base_file_writer.rs
diff --git a/src/connector/src/sink/iceberg/prometheus/partition_metrics_writer.rs b/src/connector/src/sink/iceberg/prometheus/monitor_partition_writer.rs
similarity index 100%
rename from src/connector/src/sink/iceberg/prometheus/partition_metrics_writer.rs
rename to src/connector/src/sink/iceberg/prometheus/monitor_partition_writer.rs
diff --git a/src/connector/src/sink/iceberg/prometheus/position_delete_metrics_writer.rs b/src/connector/src/sink/iceberg/prometheus/monitor_position_delete_writer.rs
similarity index 100%
rename from src/connector/src/sink/iceberg/prometheus/position_delete_metrics_writer.rs
rename to src/connector/src/sink/iceberg/prometheus/monitor_position_delete_writer.rs
diff --git a/src/connector/src/sink/iceberg/prometheus/write_metrics_writer.rs b/src/connector/src/sink/iceberg/prometheus/monitor_write_writer.rs
similarity index 97%
rename from src/connector/src/sink/iceberg/prometheus/write_metrics_writer.rs
rename to src/connector/src/sink/iceberg/prometheus/monitor_write_writer.rs
index e38e7d12507b8..6610bb785dd6f 100644
--- a/src/connector/src/sink/iceberg/prometheus/write_metrics_writer.rs
+++ b/src/connector/src/sink/iceberg/prometheus/monitor_write_writer.rs
@@ -67,7 +67,7 @@ impl<F: IcebergWriter> IcebergWriter for WriteMetricsWriter<F> {
 
     async fn write(&mut self, record: RecordBatch) -> Result<()> {
         self.write_qps.inc();
-        let _ = self.write_latency.start_timer();
+        let _timer = self.write_latency.start_timer();
         self.appender.write(record).await
     }