111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
"""
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Centralized configuration constants for LightRAG.
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This module defines default values for configuration constants used across
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different parts of the LightRAG system. Centralizing these values ensures
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consistency and makes maintenance easier.
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"""
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# Default values for server settings
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DEFAULT_WOKERS = 2
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DEFAULT_MAX_GRAPH_NODES = 1000
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# Default values for extraction settings
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DEFAULT_SUMMARY_LANGUAGE = "English" # Default language for document processing
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DEFAULT_MAX_GLEANING = 1
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DEFAULT_ENTITY_NAME_MAX_LENGTH = 256
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# Number of description fragments to trigger LLM summary
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DEFAULT_FORCE_LLM_SUMMARY_ON_MERGE = 8
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# Max description token size to trigger LLM summary
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DEFAULT_SUMMARY_MAX_TOKENS = 1200
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# Recommended LLM summary output length in tokens
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DEFAULT_SUMMARY_LENGTH_RECOMMENDED = 600
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# Maximum token size sent to LLM for summary
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DEFAULT_SUMMARY_CONTEXT_SIZE = 12000
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# Default entities to extract if ENTITY_TYPES is not specified in .env
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DEFAULT_ENTITY_TYPES = [
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"Person",
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"Creature",
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"Organization",
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"Location",
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"Event",
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"Concept",
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"Method",
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"Content",
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"Data",
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"Artifact",
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"NaturalObject",
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]
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# Separator for graph fields
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GRAPH_FIELD_SEP = "<SEP>"
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# Query and retrieval configuration defaults
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DEFAULT_TOP_K = 40
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DEFAULT_CHUNK_TOP_K = 20
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DEFAULT_MAX_ENTITY_TOKENS = 6000
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DEFAULT_MAX_RELATION_TOKENS = 8000
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DEFAULT_MAX_TOTAL_TOKENS = 30000
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DEFAULT_COSINE_THRESHOLD = 0.2
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DEFAULT_RELATED_CHUNK_NUMBER = 5
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DEFAULT_KG_CHUNK_PICK_METHOD = "VECTOR"
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# TODO: Deprated. All conversation_history messages is send to LLM.
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DEFAULT_HISTORY_TURNS = 0
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# Rerank configuration defaults
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DEFAULT_MIN_RERANK_SCORE = 0.0
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DEFAULT_RERANK_BINDING = "null"
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# Default source ids limit in meta data for entity and relation
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DEFAULT_MAX_SOURCE_IDS_PER_ENTITY = 300
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DEFAULT_MAX_SOURCE_IDS_PER_RELATION = 300
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### control chunk_ids limitation method: FIFO, FIFO
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### FIFO: First in first out
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### KEEP: Keep oldest (less merge action and faster)
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SOURCE_IDS_LIMIT_METHOD_KEEP = "KEEP"
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SOURCE_IDS_LIMIT_METHOD_FIFO = "FIFO"
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DEFAULT_SOURCE_IDS_LIMIT_METHOD = SOURCE_IDS_LIMIT_METHOD_FIFO
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VALID_SOURCE_IDS_LIMIT_METHODS = {
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SOURCE_IDS_LIMIT_METHOD_KEEP,
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SOURCE_IDS_LIMIT_METHOD_FIFO,
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}
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# Maximum number of file paths stored in entity/relation file_path field (For displayed only, does not affect query performance)
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DEFAULT_MAX_FILE_PATHS = 100
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# Field length of file_path in Milvus Schema for entity and relation (Should not be changed)
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# file_path must store all file paths up to the DEFAULT_MAX_FILE_PATHS limit within the metadata.
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DEFAULT_MAX_FILE_PATH_LENGTH = 32768
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# Placeholder for more file paths in meta data for entity and relation (Should not be changed)
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DEFAULT_FILE_PATH_MORE_PLACEHOLDER = "truncated"
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# Default temperature for LLM
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DEFAULT_TEMPERATURE = 1.0
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# Async configuration defaults
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DEFAULT_MAX_ASYNC = 4 # Default maximum async operations
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DEFAULT_MAX_PARALLEL_INSERT = 2 # Default maximum parallel insert operations
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# Embedding configuration defaults
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DEFAULT_EMBEDDING_FUNC_MAX_ASYNC = 8 # Default max async for embedding functions
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DEFAULT_EMBEDDING_BATCH_NUM = 10 # Default batch size for embedding computations
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# Gunicorn worker timeout
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DEFAULT_TIMEOUT = 300
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# Default llm and embedding timeout
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DEFAULT_LLM_TIMEOUT = 180
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DEFAULT_EMBEDDING_TIMEOUT = 30
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# Logging configuration defaults
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DEFAULT_LOG_MAX_BYTES = 10485760 # Default 10MB
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DEFAULT_LOG_BACKUP_COUNT = 5 # Default 5 backups
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DEFAULT_LOG_FILENAME = "lightrag.log" # Default log filename
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# Ollama server configuration defaults
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DEFAULT_OLLAMA_MODEL_NAME = "lightrag"
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DEFAULT_OLLAMA_MODEL_TAG = "latest"
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DEFAULT_OLLAMA_MODEL_SIZE = 7365960935
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DEFAULT_OLLAMA_CREATED_AT = "2024-01-15T00:00:00Z"
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DEFAULT_OLLAMA_DIGEST = "sha256:lightrag"
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