go network_error ai_generated true

rpc 错误：代码 = Unavailable 描述 = 无法解析服务名称：没有这样的主机

rpc error: code = Unavailable desc = failed to resolve service name: no such host

ID: go/grpc-unavailable-dns-resolution

其他格式: JSON · Markdown 中文 · English
80%修复率
85%置信度
0证据数
2024-09-01首次发现

版本兼容性

版本状态引入弃用备注
1.56.x active — — —
1.57.x active — — —

根因分析

DNS 解析失败，因为目标主机名不存在或 DNS 服务器不可达。

English

DNS resolution fails because the target hostname does not exist or DNS server is unreachable.

generic

解决方案

  1. 85% 成功率 
    resolver := &customResolver{}; conn, err := grpc.Dial("dns:///service.example.com:50051", grpc.WithResolvers(resolver))
  2. 90% 成功率 
    nslookup service.example.com; verify /etc/resolv.conf
  3. 80% 成功率 
    conn, err := grpc.Dial("127.0.0.1:50051", grpc.WithInsecure())

无效尝试

常见但无效的做法:

  1. Hardcoding an IP address instead of hostname. 60% 失败

    IP may change, causing future failures.

  2. Retrying indefinitely without fixing DNS. 90% 失败

    DNS issue persists.

  3. Modifying system DNS settings. 50% 失败

    May not be applicable in containerized environments.