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64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
import os
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from typing import Any, final
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from dataclasses import dataclass
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import pipmaster as pm
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import configparser
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if not pm.is_installed("redis"):
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pm.install("redis")
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# aioredis is a depricated library, replaced with redis
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from redis.asyncio import Redis
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from lightrag.utils import logger
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from lightrag.base import BaseKVStorage
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import json
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config = configparser.ConfigParser()
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config.read("config.ini", "utf-8")
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@final
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@dataclass
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class RedisKVStorage(BaseKVStorage):
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def __post_init__(self):
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redis_url = os.environ.get(
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"REDIS_URI", config.get("redis", "uri", fallback="redis://localhost:6379")
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)
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self._redis = Redis.from_url(redis_url, decode_responses=True)
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logger.info(f"Use Redis as KV {self.namespace}")
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async def get_by_id(self, id: str) -> dict[str, Any] | None:
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data = await self._redis.get(f"{self.namespace}:{id}")
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return json.loads(data) if data else None
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async def get_by_ids(self, ids: list[str]) -> list[dict[str, Any]]:
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pipe = self._redis.pipeline()
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for id in ids:
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pipe.get(f"{self.namespace}:{id}")
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results = await pipe.execute()
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return [json.loads(result) if result else None for result in results]
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async def filter_keys(self, keys: set[str]) -> set[str]:
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pipe = self._redis.pipeline()
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for key in keys:
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pipe.exists(f"{self.namespace}:{key}")
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results = await pipe.execute()
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existing_ids = {keys[i] for i, exists in enumerate(results) if exists}
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return set(keys) - existing_ids
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async def upsert(self, data: dict[str, dict[str, Any]]) -> None:
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pipe = self._redis.pipeline()
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for k, v in data.items():
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pipe.set(f"{self.namespace}:{k}", json.dumps(v))
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await pipe.execute()
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for k in data:
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data[k]["_id"] = k
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async def index_done_callback(self) -> None:
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# Redis handles persistence automatically
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pass
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