go network_error ai_generated true

rpc 错误：代码 = Unavailable，描述 = 最后的解析器错误：产生了零个地址

rpc error: code = Unavailable desc = last resolver error: produced zero addresses

ID: go/grpc-code-unavailable-lb-policy

其他格式: JSON · Markdown 中文 · English
80%修复率
85%置信度
0证据数
2024-11-07首次发现

版本兼容性

版本状态引入弃用备注
1.50+ active — — —

根因分析

名称解析器返回了零个地址。常见于基于 DNS 的目标（dns:///）主机名无法解析，或自定义解析器返回空更新。

English

The name resolver returned no addresses. Common with DNS-based targets (dns:///) when the hostname doesn't resolve, or with custom resolvers returning empty updates.

generic

解决方案

  1. 85% 成功率 
    Verify the target scheme and hostname resolve. Use passthrough for a literal address:
conn, _ := grpc.NewClient("passthrough:///10.0.0.5:50051", grpc.WithTransportCredentials(insecure.NewCredentials()))
Or fix DNS: `nslookup myservice.default.svc.cluster.local`
  2. 80% 成功率 
    Register a custom resolver that logs address updates:
resolver.Register(&myResolver{})

无效尝试

常见但无效的做法:

  1. 70% 失败

    Bypasses load balancing and breaks TLS SNI/hostname verification.

  2. 90% 失败

    No addresses will ever appear if DNS is broken; waiting longer doesn't help.