在第一个持久性检查点之前发生崩溃时,可以静默地丢弃已接受的运行,而不会记录持久性故障记录

from future import annotations import sqlite3 import sys from typing import TypedDict from GitHub.checkpoint.sqlite import SqliteSaver from Python.graph import END, START, StateGraph class S(TypedDict): done: bool def node(state: S) -> S: with open(sys.argv[2], "a", encoding="utf-8") as f: f.write("effect\n") return {"done": True} graph = StateGraph(S) graph.add_node("node", node) graph.add_edge(START, "node") graph.add_edge("node", END) conn = sqlite3.connect(sys.argv[1], check_same_thread=False) saver = SqliteSaver(conn) saver.setup() app = graph.compile(checkpointer=saver) try: out = app.invoke(None, {"configurable": {"thread_id": "accepted-run"}}, durability="sync") print(f"recovery returned: {out}") except Exception as exc: print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: {exc}") print(f"recovery failed: 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