grpc resource_error ai_generated true

内部错误: grpc: 服务器上超过最大并发流数

INTERNAL: grpc: max concurrent streams exceeded on server

ID: grpc/grpc-max-concurrent-streams-exceeded

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
1证据数
2023-11-20首次发现

版本兼容性

版本状态引入弃用备注
grpc-go 1.61.0 active — — —
grpc-java 1.60.0 active — — —
envoy 1.27.0 active — — —
nginx 1.25.0 active — — —

根因分析

服务器的 HTTP/2 最大并发流限制（默认 100）已达到，新流被拒绝。

English

Server's HTTP/2 max concurrent streams limit (default 100) is reached, and new streams are rejected.

generic

官方文档

https://grpc.io/docs/guides/performance/#flow-control

解决方案

  1. Increase the server's max concurrent streams limit. In gRPC-Go, use:
  import "google.golang.org/grpc"
  s := grpc.NewServer(grpc.MaxConcurrentStreams(200))
  Or set environment variable GRPC_GO_MAX_CONCURRENT_STREAMS=200 before starting the server.
  2. Reduce the number of long-lived streams by batching requests or using unary RPCs instead of streaming. Alternatively, add more server instances behind a load balancer to distribute streams.

无效尝试

常见但无效的做法:

  1. 85% 失败

    The limit is on the server side per connection; client pool size doesn't affect server stream limits.

  2. 90% 失败

    Stream count is unrelated to message size; this does not free up stream slots.