Azure cosmosdb OMS报告DocumentDb listKeys故障

OMS报告了一个奇怪的错误，我们无法追踪。我已经查找了有关此错误的文档，但运气不佳

OMS报告的错误为：

OperationName:      Microsoft.DocumentDb/databaseAccounts/listKeys/action
Level:              Error 
ActivityStatus:     Failed 
ActivitySubstatus:  499
ResourceGroup:      Our own Azure hosted API
Category:           Administrative
HTTPRequest:        { "clientRequestId": "[]", "clientIpAddress": "[]", "method": "POST" }
Properties:         { "statusCode": "499", "serviceRequestId": null, "statusMessage": "{\"error\":{\"code\":\"ClientClosedRequest\",\"message\":\"The connection has been closed by the client while the server is still processing its request for 'Microsoft.DocumentDB'.\"}}" }
ResourceProvider:   Microsoft.DocumentDb
SourceSystem:       Azure
Type:               AzureActivity

DocumentDb似乎试图获取有关Azure订阅的信息，但失败（“客户端已关闭连接，而服务器仍在处理其对“Microsoft.DocumentDb”的请求”）

此错误现在大约每周发生两次，似乎没有任何作用，但OMS报告为严重错误

如果任何人有关于这个错误的信息或经验，我将非常感谢一些关于它的情报