2025/08/26 Weaviate调试记录

快两年没上这个帐号了

回来的原因是想记录一些配置/调试遇见的bug，因为内容比较零散，不适合放在个人主页。

由于需要在Linux环境下用GPU，将虚拟机卸载换成了双系统，不能再通过宿主机的虚拟网卡方式配置代理，因此出现了代理与Weaviate不兼容的问题。

具体来说，使用  connect_to_local  时会报错（截取部分）：

　grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
　status = StatusCode.UNAVAILABLE
　details = "failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:xxxxx: Socket closed"
　debug_error_string = "UNKNOWN:Error received from peer {grpc_status:14, grpc_message:"failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:xxxxx: Socket closed"}"

le_ping_exception
    raise WeaviateGRPCUnavailableError(
weaviate.exceptions.WeaviateGRPCUnavailableError: 
Weaviate v1.32.2 makes use of a high-speed gRPC API as well as a REST API.
Unfortunately, the gRPC health check against Weaviate could not be completed.

This error could be due to one of several reasons:
- The gRPC traffic at the specified port is blocked by a firewall.
- gRPC is not enabled or incorrectly configured on the server or the client.
    - Please check that the server address and port (localhost:50051) are correct.
- your connection is unstable or has a high latency. In this case you can:
    - increase init-timeout in `weaviate.connect_to_local(additional_config=wvc.init.AdditionalConfig(timeout=wvc.init.Timeout(init=X)))`
    - disable startup checks by connecting using `skip_init_checks=True

可以看到grpc没有尝试连接正常配置的端口，而是去连接了代理端口。

对于这种情况，最开始的措施是手动指明代理

proxies = Proxies(
　　 http="http://127.0.0.1/xxxxx/",
　　 https="http://127.0.0.1/xxxxx/"
)
self.client = weaviate.connect_to_local(
     host=host,
     port=http_port,
     grpc_port=grpc_port,
　　　additional_config=AdditionalConfig(
　　　　  proxies=proxies
     )
)

但是这种情况会报错（打开代理调用本地weaviate服务就会报错）

_response_dict
    raise UnexpectedStatusCodeError(location, response)
weaviate.exceptions.UnexpectedStatusCodeError: Meta endpoint! Unexpected status code: 502, with response body: None.

因为事实上，这段代码要从python连接到本地的docker环境（http://127.0.0.1:8081），根本就不应该通过代理。

于是我通过.bashrc配置了全局的no_proxy变量，设置本地不通过代理。

但是修改.bashrc并source ~/.bashrc后，新配置只在当前终端和新打开的终端中生效。因此将终端关闭后重新打开即可。

对于这种Python本地连接Docker Weaviate本地的情况，并不需要额外在代码中（包括docker-compose.yml）中配置代理。