grpc resource_error ai_generated true

RESOURCE_EXHAUSTED: grpc: max retry attempts (3) exceeded with exponential backoff for method /Service/Call

ID: grpc/max-retry-attempts-exceeded-with-backoff

Also available as: JSON · Markdown · 中文
80%Fix Rate
82%Confidence
1Evidence
2024-06-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
gRPC v1.50.0 active — — —
gRPC v1.60.0 active — — —
gRPC v1.64.0 active — — —

Root Cause

The gRPC client's retry mechanism exhausted its configured maximum retry attempts (e.g., 3) due to persistent transient failures on the server, such as high latency or intermittent unavailability.

generic

中文

gRPC 客户端的重试机制因服务器持续出现瞬时故障（如高延迟或间歇性不可用）而耗尽配置的最大重试次数（例如 3 次）。

Official Documentation

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

Workarounds

  1. 75% success Increase the max retry attempts and adjust backoff parameters in the client config: `retryPolicy: { maxAttempts: 5, initialBackoff: 0.1s, maxBackoff: 10s }` 
    Increase the max retry attempts and adjust backoff parameters in the client config: `retryPolicy: { maxAttempts: 5, initialBackoff: 0.1s, maxBackoff: 10s }`
  2. 70% success Add circuit breaker logic to skip retries after a threshold to reduce load: use `grpc.retry_buffer_size` to limit pending retries. 
    Add circuit breaker logic to skip retries after a threshold to reduce load: use `grpc.retry_buffer_size` to limit pending retries.
  3. 85% success Investigate server logs for errors like 'UNAVAILABLE' or 'DEADLINE_EXCEEDED' and fix the root cause (e.g., scale server replicas or optimize DB queries). 
    Investigate server logs for errors like 'UNAVAILABLE' or 'DEADLINE_EXCEEDED' and fix the root cause (e.g., scale server replicas or optimize DB queries).

中文步骤

  1. 在客户端配置中增加最大重试次数并调整退避参数：`retryPolicy: { maxAttempts: 5, initialBackoff: 0.1s, maxBackoff: 10s }`
  2. 添加断路器逻辑以在达到阈值后跳过重试以减少负载：使用 `grpc.retry_buffer_size` 限制待处理重试。
  3. 调查服务器日志中的错误（如 'UNAVAILABLE' 或 'DEADLINE_EXCEEDED'）并修复根本原因（例如扩展服务器副本或优化数据库查询）。

Dead Ends

Common approaches that don't work:

  1. 70% fail

    Simply increasing the max retry count in the config (e.g., to 10) may delay failure but does not address the server-side issue causing failures.

  2. 60% fail

    Disabling retries entirely will cause immediate failures on transient errors, worsening user experience.

  3. 80% fail

    Changing the backoff strategy to a linear one without server fixes still results in retries hitting the same limit.