diff --git a/src/main/java/com/tencent/msdk/dns/core/cache/database/CacheDbHelper.java b/src/main/java/com/tencent/msdk/dns/core/cache/database/CacheDbHelper.java
index d61c424..d86a519 100644
--- a/src/main/java/com/tencent/msdk/dns/core/cache/database/CacheDbHelper.java
+++ b/src/main/java/com/tencent/msdk/dns/core/cache/database/CacheDbHelper.java
@@ -153,7 +153,8 @@ public void clear() {
                 if (db != null) {
                     try {
                         db.endTransaction();
-                    } catch (Exception ignored) {
+                    } catch (Exception e) {
+                        DnsLog.e("db end transaction error " + e);
                     }
                 }
             }