diff --git a/lightrag/constants.py b/lightrag/constants.py
index 62ca1888..7c2b2701 100644
--- a/lightrag/constants.py
+++ b/lightrag/constants.py
@@ -58,17 +58,17 @@ DEFAULT_MIN_RERANK_SCORE = 0.0
 DEFAULT_RERANK_BINDING = "null"
 
 # Default source ids limit in meta data for entity and relation
-DEFAULT_MAX_SOURCE_IDS_PER_ENTITY = 3
-DEFAULT_MAX_SOURCE_IDS_PER_RELATION = 3
-SOURCE_IDS_LIMIT_METHOD_KEEP = "KEEP"
-SOURCE_IDS_LIMIT_METHOD_FIFO = "FIFO"
+DEFAULT_MAX_SOURCE_IDS_PER_ENTITY = 300
+DEFAULT_MAX_SOURCE_IDS_PER_RELATION = 300
+SOURCE_IDS_LIMIT_METHOD_KEEP = "KEEP"  # Keep oldest
+SOURCE_IDS_LIMIT_METHOD_FIFO = "FIFO"  # First In First Out (Keep newest)
 DEFAULT_SOURCE_IDS_LIMIT_METHOD = SOURCE_IDS_LIMIT_METHOD_KEEP
 VALID_SOURCE_IDS_LIMIT_METHODS = {
     SOURCE_IDS_LIMIT_METHOD_KEEP,
     SOURCE_IDS_LIMIT_METHOD_FIFO,
 }
-# Default file_path limit in meta data for entity and relation
-DEFAULT_MAX_FILE_PATHS = 2
+# Default file_path limit in meta data for entity and relation (Use same limit method as source_ids)
+DEFAULT_MAX_FILE_PATHS = 30
 
 # Field length of file_path in Milvus Schema for entity and relation (Should not be changed)
 # file_path must store all file paths up to the DEFAULT_MAX_FILE_PATHS limit within the metadata.