Fix: Add Neo4j connection pool configuration parameters

Added configurable connection pool parameters to Neo4jDriver to fix
"network abort" and "Response write failure" errors caused by stale
connections.

Changes:
- Added max_connection_pool_size parameter (default: 200)
- Added connection_timeout parameter (default: 60s)
- Added max_connection_lifetime parameter (default: 7200s = 2hr)
- Added liveness_check_timeout parameter (default: 60s) - CRITICAL FIX
- Added connection_acquisition_timeout parameter (default: 120s)

The liveness_check_timeout=60s enables connection validation after 60s
of idle time, preventing reuse of stale connections that were closed by
the Neo4j server.

Version: graphiti-core-varming 0.23.2

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

graphiti_core/driver/neo4j_driver.py

@@ -38,11 +38,34 @@ class Neo4jDriver(GraphDriver):
         user: str | None,
         password: str | None,
         database: str = 'neo4j',
+        max_connection_pool_size: int = 200,
+        connection_timeout: float = 60.0,
+        max_connection_lifetime: float = 7200.0,
+        liveness_check_timeout: float = 60.0,
+        connection_acquisition_timeout: float = 120.0,
     ):
+        """Initialize Neo4j driver with connection pool configuration.
+
+        Args:
+            uri: Neo4j connection URI (bolt://, neo4j://, etc.)
+            user: Username for authentication
+            password: Password for authentication
+            database: Database name (default: 'neo4j')
+            max_connection_pool_size: Max connections per host (default: 200)
+            connection_timeout: Timeout for TCP connection (default: 60s)
+            max_connection_lifetime: Max time connection is kept (default: 7200s = 2hr)
+            liveness_check_timeout: Idle time before connection check (default: 60s)
+            connection_acquisition_timeout: Timeout to acquire connection (default: 120s)
+        """
         super().__init__()
         self.client = AsyncGraphDatabase.driver(
             uri=uri,
             auth=(user or '', password or ''),
+            max_connection_pool_size=max_connection_pool_size,
+            connection_timeout=connection_timeout,
+            max_connection_lifetime=max_connection_lifetime,
+            liveness_check_timeout=liveness_check_timeout,
+            connection_acquisition_timeout=connection_acquisition_timeout,
         )
         self._database = database
 

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "graphiti-core-varming"
 description = "A temporal graph building library (Varming fork with database parameter fix)"
-version = "0.23.1"
+version = "0.23.2"
 authors = [
     { name = "Paul Paliychuk", email = "paul@getzep.com" },
     { name = "Preston Rasmussen", email = "preston@getzep.com" },