2 grpc protocol_error ai_generated partial

INTERNAL: grpc: client-side streaming write failed: stream closed with error code 2

ID: grpc/client-side-streaming-write-failure

Also available as: JSON · Markdown · 中文
82%Fix Rate
86%Confidence
1Evidence
2024-08-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
gRPC v1.55.0 active — — —
gRPC v1.61.0 active — — —
gRPC v1.65.0 active — — —

Root Cause

The gRPC client-side streaming RPC encountered a write failure because the server prematurely closed the stream due to an internal error or timeout, leaving the client unable to send further messages.

generic

中文

gRPC 客户端流式 RPC 遇到写入失败，因为服务器因内部错误或超时而提前关闭流，导致客户端无法发送更多消息。

Official Documentation

https://grpc.io/docs/guides/error/

Workarounds

  1. 75% success Implement a retry loop with backoff for the streaming RPC: `for attempt in range(3): try: call.write(msg); break; except Exception: time.sleep(0.5*2**attempt)` 
    Implement a retry loop with backoff for the streaming RPC: `for attempt in range(3): try: call.write(msg); break; except Exception: time.sleep(0.5*2**attempt)`
  2. 80% success Check the server's stream deadline and increase it if too low: in server config, set `grpc.max_connection_age` or adjust client deadline to match. 
    Check the server's stream deadline and increase it if too low: in server config, set `grpc.max_connection_age` or adjust client deadline to match.
  3. 70% success Add client-side logic to detect stream closure and recreate the stream: `if call.done(): call = stub.StreamingMethod()` 
    Add client-side logic to detect stream closure and recreate the stream: `if call.done(): call = stub.StreamingMethod()`

中文步骤

  1. 为流式 RPC 实现带退避的重试循环：`for attempt in range(3): try: call.write(msg); break; except Exception: time.sleep(0.5*2**attempt)`
  2. 检查服务器的流超时时间，如果太低则增加：在服务器配置中设置 `grpc.max_connection_age` 或调整客户端超时以匹配。
  3. 添加客户端逻辑以检测流关闭并重新创建流：`if call.done(): call = stub.StreamingMethod()`

Dead Ends

Common approaches that don't work:

  1. 60% fail

    Retrying the entire streaming RPC from scratch may work but is inefficient and does not prevent the server-side issue.

  2. 50% fail

    Reducing the client's message size does not help if the server closes the stream due to a logic error or resource limit.

  3. 90% fail

    Ignoring the error and continuing to write to the closed stream will cause a panic or crash.