go runtime_error ai_generated true

rpc错误：代码=先决条件失败 描述=资源版本冲突：期望3，得到5

rpc error: code = FailedPrecondition desc = resource version conflict: expected 3, got 5

ID: go/grpc-failed-precondition-state-mismatch

其他格式: JSON · Markdown 中文 · English
80%修复率
84%置信度
0证据数
2024-10-05首次发现

版本兼容性

版本状态引入弃用备注
1.0 active — — —
1.1 active — — —

根因分析

请求违反了先决条件，例如在乐观并发控制场景中资源版本过时。

English

The request violates a precondition, such as an outdated resource version in an optimistic concurrency control scenario.

generic

解决方案

  1. 90% 成功率 Fetch the latest resource version and retry the update. 
    currentResource, err := client.GetResource(ctx, &pb.GetRequest{Id: id})
if err != nil { return err }
req.Version = currentResource.Version
resp, err := client.UpdateResource(ctx, req)
  2. 85% 成功率 Implement a retry loop with backoff to handle concurrent updates. 
    for i := 0; i < 3; i++ {
    resp, err := client.UpdateResource(ctx, req)
    if err == nil { return resp }
    if status.Code(err) != codes.FailedPrecondition { return err }
    time.Sleep(100 * time.Millisecond)
    // Refresh resource
}

无效尝试

常见但无效的做法:

  1. Retry the same request without updating the version. 100% 失败

    The version mismatch will persist, causing the same error.

  2. Ignore the version and force the update. 80% 失败

    This can lead to data corruption or lost updates.