diff --git a/flink-doris-connector/src/main/java/org/apache/doris/flink/backend/BackendClient.java b/flink-doris-connector/src/main/java/org/apache/doris/flink/backend/BackendClient.java
index 9881ec5f0..319fda82a 100644
--- a/flink-doris-connector/src/main/java/org/apache/doris/flink/backend/BackendClient.java
+++ b/flink-doris-connector/src/main/java/org/apache/doris/flink/backend/BackendClient.java
@@ -134,7 +134,11 @@ private void close() {
      * @throws ConnectedFailedException throw if cannot connect to Doris BE
      */
     public TScanOpenResult openScanner(TScanOpenParams openParams) {
-        logger.debug("OpenScanner to '{}', parameter is '{}'.", routing, openParams);
+        logger.info(
+                "OpenScanner to '{}', table is '{}', tablets is '{}'",
+                routing,
+                openParams.table,
+                openParams.tablet_ids);
         if (!isConnected) {
             open();
         }
@@ -161,7 +165,10 @@ public TScanOpenResult openScanner(TScanOpenParams openParams) {
                 ex = e;
             }
         }
-        logger.error(ErrorMessages.CONNECT_FAILED_MESSAGE, routing);
+        logger.error(
+                "Connect to doris {} failed, to open scanner for tablet {}",
+                routing,
+                openParams.tablet_ids);
         throw new ConnectedFailedException(routing.toString(), ex);
     }
 
diff --git a/flink-doris-connector/src/main/java/org/apache/doris/flink/rest/PartitionDefinition.java b/flink-doris-connector/src/main/java/org/apache/doris/flink/rest/PartitionDefinition.java
index dd57a991a..9f2bd07dd 100644
--- a/flink-doris-connector/src/main/java/org/apache/doris/flink/rest/PartitionDefinition.java
+++ b/flink-doris-connector/src/main/java/org/apache/doris/flink/rest/PartitionDefinition.java
@@ -144,4 +144,20 @@ public String toString() {
                 + '\''
                 + '}';
     }
+
+    public String toStringWithoutPlan() {
+        return "PartitionDefinition{"
+                + "database='"
+                + database
+                + '\''
+                + ", table='"
+                + table
+                + '\''
+                + ", beAddress='"
+                + beAddress
+                + '\''
+                + ", tabletIds="
+                + tabletIds
+                + '}';
+    }
 }
diff --git a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/DorisValueReader.java b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/DorisValueReader.java
index e55e1775f..2db4f7984 100644
--- a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/DorisValueReader.java
+++ b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/DorisValueReader.java
@@ -182,6 +182,11 @@ public void run() {
                                         } catch (InterruptedException e) {
                                             throw new DorisRuntimeException(e);
                                         }
+                                    } else {
+                                        LOG.info(
+                                                "Async scan finished , tablets: {}, offset: {}",
+                                                partition.getTabletIds(),
+                                                offset);
                                     }
                                 }
                             } finally {
@@ -245,6 +250,11 @@ public boolean hasNext() {
                     eos.set(nextResult.isEos());
                     if (!eos.get()) {
                         rowBatch = new RowBatch(nextResult, schema).readArrow();
+                    } else {
+                        LOG.info(
+                                "Scan finished, tablets: {}, offset: {}",
+                                partition.getTabletIds(),
+                                offset);
                     }
                 }
                 hasNext = !eos.get();
diff --git a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/ValueReader.java b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/ValueReader.java
index 9e4539349..9e1d091eb 100644
--- a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/ValueReader.java
+++ b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/reader/ValueReader.java
@@ -34,7 +34,7 @@ public static ValueReader createReader(
             DorisReadOptions readOptions,
             Logger logger)
             throws DorisException {
-        logger.info("create reader for partition: {}", partition);
+        logger.info("create reader for partition: {}", partition.toStringWithoutPlan());
         if (readOptions.getUseFlightSql()) {
             return new DorisFlightValueReader(
                     partition,