Merge pull request #2417 from danielaskdd/neo4j-retry
Fix: Add Comprehensive Retry Mechanism for Neo4j Storage Operations
This commit is contained in:
Daniel.y
GitHub
commit
2832a2ca7e
3 changed files with 61 additions and 1 deletions
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@ -44,6 +44,23 @@ config.read("config.ini", "utf-8")
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logging.getLogger("neo4j").setLevel(logging.ERROR)
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READ_RETRY_EXCEPTIONS = (
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neo4jExceptions.ServiceUnavailable,
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neo4jExceptions.TransientError,
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neo4jExceptions.SessionExpired,
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ConnectionResetError,
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OSError,
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AttributeError,
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)
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READ_RETRY = retry(
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stop=stop_after_attempt(3),
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wait=wait_exponential(multiplier=1, min=4, max=10),
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retry=retry_if_exception_type(READ_RETRY_EXCEPTIONS),
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reraise=True,
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)
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@final
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@dataclass
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class Neo4JStorage(BaseGraphStorage):
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@ -352,6 +369,7 @@ class Neo4JStorage(BaseGraphStorage):
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# Neo4J handles persistence automatically
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pass
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@READ_RETRY
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async def has_node(self, node_id: str) -> bool:
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"""
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Check if a node with the given label exists in the database
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@ -385,6 +403,7 @@ class Neo4JStorage(BaseGraphStorage):
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await result.consume() # Ensure results are consumed even on error
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raise
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@READ_RETRY
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async def has_edge(self, source_node_id: str, target_node_id: str) -> bool:
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"""
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Check if an edge exists between two nodes
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@ -426,6 +445,7 @@ class Neo4JStorage(BaseGraphStorage):
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await result.consume() # Ensure results are consumed even on error
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raise
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@READ_RETRY
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async def get_node(self, node_id: str) -> dict[str, str] | None:
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"""Get node by its label identifier, return only node properties
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@ -479,6 +499,7 @@ class Neo4JStorage(BaseGraphStorage):
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)
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raise
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@READ_RETRY
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async def get_nodes_batch(self, node_ids: list[str]) -> dict[str, dict]:
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"""
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Retrieve multiple nodes in one query using UNWIND.
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@ -515,6 +536,7 @@ class Neo4JStorage(BaseGraphStorage):
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await result.consume() # Make sure to consume the result fully
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return nodes
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@READ_RETRY
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async def node_degree(self, node_id: str) -> int:
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"""Get the degree (number of relationships) of a node with the given label.
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If multiple nodes have the same label, returns the degree of the first node.
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@ -563,6 +585,7 @@ class Neo4JStorage(BaseGraphStorage):
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)
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raise
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@READ_RETRY
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async def node_degrees_batch(self, node_ids: list[str]) -> dict[str, int]:
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"""
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Retrieve the degree for multiple nodes in a single query using UNWIND.
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@ -621,6 +644,7 @@ class Neo4JStorage(BaseGraphStorage):
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degrees = int(src_degree) + int(trg_degree)
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return degrees
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@READ_RETRY
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async def edge_degrees_batch(
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self, edge_pairs: list[tuple[str, str]]
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) -> dict[tuple[str, str], int]:
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@ -647,6 +671,7 @@ class Neo4JStorage(BaseGraphStorage):
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edge_degrees[(src, tgt)] = degrees.get(src, 0) + degrees.get(tgt, 0)
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return edge_degrees
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@READ_RETRY
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async def get_edge(
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self, source_node_id: str, target_node_id: str
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) -> dict[str, str] | None:
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@ -734,6 +759,7 @@ class Neo4JStorage(BaseGraphStorage):
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)
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raise
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@READ_RETRY
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async def get_edges_batch(
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self, pairs: list[dict[str, str]]
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) -> dict[tuple[str, str], dict]:
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@ -784,6 +810,7 @@ class Neo4JStorage(BaseGraphStorage):
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await result.consume()
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return edges_dict
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@READ_RETRY
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async def get_node_edges(self, source_node_id: str) -> list[tuple[str, str]] | None:
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"""Retrieves all edges (relationships) for a particular node identified by its label.
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@ -851,6 +878,7 @@ class Neo4JStorage(BaseGraphStorage):
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)
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raise
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@READ_RETRY
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async def get_nodes_edges_batch(
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self, node_ids: list[str]
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) -> dict[str, list[tuple[str, str]]]:
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@ -47,6 +47,7 @@ pytest = [
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"pytest>=8.4.2",
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"pytest-asyncio>=1.2.0",
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"pre-commit",
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"ruff",
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]
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api = [
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@ -132,10 +133,11 @@ offline = [
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]
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evaluation = [
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# Test framework dependencies (for evaluation)
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# Test framework dependencies
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"pytest>=8.4.2",
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"pytest-asyncio>=1.2.0",
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"pre-commit",
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"ruff",
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# RAG evaluation dependencies (RAGAS framework)
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"ragas>=0.3.7",
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"datasets>=4.3.0",
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30
uv.lock
generated
30
uv.lock
generated
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@ -2615,6 +2615,7 @@ evaluation = [
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{ name = "pytest" },
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{ name = "pytest-asyncio" },
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{ name = "ragas" },
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{ name = "ruff" },
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]
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observability = [
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{ name = "langfuse" },
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@ -2700,6 +2701,7 @@ pytest = [
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{ name = "pre-commit" },
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{ name = "pytest" },
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{ name = "pytest-asyncio" },
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{ name = "ruff" },
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]
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[package.metadata]
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@ -2778,6 +2780,8 @@ requires-dist = [
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{ name = "qdrant-client", marker = "extra == 'offline-storage'", specifier = ">=1.11.0,<2.0.0" },
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{ name = "ragas", marker = "extra == 'evaluation'", specifier = ">=0.3.7" },
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{ name = "redis", marker = "extra == 'offline-storage'", specifier = ">=5.0.0,<8.0.0" },
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{ name = "ruff", marker = "extra == 'evaluation'" },
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{ name = "ruff", marker = "extra == 'pytest'" },
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{ name = "setuptools" },
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{ name = "setuptools", marker = "extra == 'api'" },
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{ name = "tenacity" },
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@ -5637,6 +5641,32 @@ wheels = [
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{ url = "https://files.pythonhosted.org/packages/3f/50/0a9e7e7afe7339bd5e36911f0ceb15fed51945836ed803ae5afd661057fd/rtree-1.4.1-py3-none-win_arm64.whl", hash = "sha256:3d46f55729b28138e897ffef32f7ce93ac335cb67f9120125ad3742a220800f0", size = 355253, upload-time = "2025-08-13T19:32:00.296Z" },
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]
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[[package]]
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name = "ruff"
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version = "0.14.6"
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source = { registry = "https://pypi.org/simple" }
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sdist = { url = "https://files.pythonhosted.org/packages/52/f0/62b5a1a723fe183650109407fa56abb433b00aa1c0b9ba555f9c4efec2c6/ruff-0.14.6.tar.gz", hash = "sha256:6f0c742ca6a7783a736b867a263b9a7a80a45ce9bee391eeda296895f1b4e1cc", size = 5669501, upload-time = "2025-11-21T14:26:17.903Z" }
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wheels = [
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||||
]
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[[package]]
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name = "s3transfer"
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version = "0.14.0"
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