diff --git a/crates/ces-mq/src/send_queue.rs b/crates/ces-mq/src/send_queue.rs
index b941beef..7d83ac09 100644
--- a/crates/ces-mq/src/send_queue.rs
+++ b/crates/ces-mq/src/send_queue.rs
@@ -99,7 +99,13 @@ impl MessageSendQueue {
         let inner = self.inner.lock();
         inner
             .iter()
-            .map(|(k, v)| (k.clone(), v.messages.clone()))
+            .filter_map(|(k, v)| {
+                if !v.messages.is_empty() {
+                    Some((k.clone(), v.messages.clone()))
+                } else {
+                    None
+                }
+            })
             .collect()
     }
 
@@ -124,7 +130,14 @@ impl MessageSendQueue {
         let mut inner = self.inner.lock();
         for (k, v) in inner.iter_mut() {
             let seq = next_sequence_for(k);
+            let before_size = v.messages.len();
             v.messages.retain(|msg| msg.sequence >= seq);
+            if log::log_enabled!(target: "ces_mq", log::Level::Trace) {
+                let n = before_size - v.messages.len();
+                if n > 0 {
+                    log::trace!("purge {k} messages: {n}, by next sequence: {seq}");
+                }
+            }
         }
     }
 
diff --git a/crates/cestory/src/ceseal_service.rs b/crates/cestory/src/ceseal_service.rs
index 25f5515e..73ef5d1a 100644
--- a/crates/cestory/src/ceseal_service.rs
+++ b/crates/cestory/src/ceseal_service.rs
@@ -671,7 +671,7 @@ impl<Platform: pal::Platform + Serialize + DeserializeOwned> Ceseal<Platform> {
             if safe_mode_level > 0 {
                 continue
             }
-            trace!("State synced");
+            trace!(block = block.block_header.number, "chain storage synced");
             state.purge_mq();
             let block_number = block.block_header.number;
 
@@ -885,8 +885,8 @@ impl<Platform: pal::Platform + Serialize + DeserializeOwned> Ceseal<Platform> {
                         AttestationReport::SgxIas { ra_report, .. } => {
                             match IasFields::from_ias_report(&ra_report[..]) {
                                 Ok((ias_fields, _)) => {
-                                    info!("measurement       :{}", hex::encode(ias_fields.measurement()));
-                                    info!("measurement hash  :{}", ias_fields.measurement_hash());
+                                    info!("RA report measurement       :{}", hex::encode(ias_fields.measurement()));
+                                    info!("RA report measurement hash  :{:?}", ias_fields.measurement_hash());
                                 },
                                 Err(e) => {
                                     error!("deserial ias report to IasFields failed: {:?}", e);
@@ -909,13 +909,13 @@ impl<Platform: pal::Platform + Serialize + DeserializeOwned> Ceseal<Platform> {
             .as_ref()
             .map(|state| state.send_mq.all_messages_grouped().into_iter().collect())
             .unwrap_or_default();
-        if log::log_enabled!(log::Level::Debug) {
+        if log::log_enabled!(log::Level::Trace) && !messages.is_empty() {
             for (_, msgs) in &messages {
                 for (index, SignedMessage { message, sequence, .. }) in msgs.iter().enumerate() {
-                    debug!(
+                    trace!(
                         target: "ces_mq",
-                        "mq egress message {index} [seq: {}, sender: {}, destination: {:?}]",
-                        sequence, message.sender, message.destination
+                        "got egress message {index} [sender: {}, destination: {:?}, seq: {sequence}]",
+                        message.sender, message.destination
                     );
                 }
             }