在针对Cosmos DB更改Feed的应用程序见解中记录的异常以下触发了Azure功能:
Microsoft.Azure.Documents.ChangeFeedProcessor.Exceptions.LeaseLostException
[{“ severityLevel”:“错误”,“ outerId”:“ 0”,“消息”:“租约 “,” parsedStack“:[{” assembly“:” Microsoft.Azure.Documents.ChangeFeedProcessor, 版本= 2.2.6.0,文化=中性, PublicKeyToken = 31bf3856ad364e35“,”方法“:” Microsoft.Azure.Documents.ChangeFeedProcessor.LeaseManagement.DocumentServiceLeaseStoreManager + d__16.MoveNext“,” level“:0,” line“:0},{” assembly“:” System.Private。 CoreLib,版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw“,”级别“:1,” line“:0},{” assembly“:” System.Private.CoreLib, 版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess“,”级别“:2,” line“:0},{” assembly“:” System.Private.CoreLib, 版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification“,” level“:3,” line“:0},{” assembly“:” Microsoft.Azure.Documents.ChangeFeedProcessor, 版本= 2.2.6.0,文化=中性, PublicKeyToken = 31bf3856ad364e35“,”方法“:” Microsoft.Azure.Documents.ChangeFeedProcessor.PartitionManagement.PartitionController + d__9.MoveNext“,” level“:4,” line“:0},{” assembly“:” System.Private。 CoreLib,版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw“,”级别“:5,” line“:0},{” assembly“:” System.Private.CoreLib, 版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess“,”级别“:6,”行“:0},{” assembly“:” System.Private.CoreLib, 版本= 4.0.0.0,文化=中性, PublicKeyToken = 7cec85d7bea7798e“,”方法“:” System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification“,” level“:7,” line“:0},{” assembly“:” Microsoft.Azure.Documents.ChangeFeedProcessor, 版本= 2.2.6.0,文化=中性, PublicKeyToken = 31bf3856ad364e35“,”方法“:” Microsoft.Azure.Documents.ChangeFeedProcessor.HealthMonitoringPartitionControllerDecorator + d__3.MoveNext“,” level“:8,” line“:0}”,“ type”:“ Microsoft.Azure.Documents。 ChangeFeedProcessor.Exceptions.LeaseLostException“,” id“:” 517071“}
Cosmos DB更改Feed触发Azure功能:
public static class NotificationChangeFeed
{
[FunctionName(nameof(NotificationChangeFeed))]
public static async Task Run([CosmosDBTrigger(
databaseName: CosmosDBConstants.DataBaseName,
collectionName: CosmosDBConstants.NotificationContainer,
ConnectionStringSetting = CosmosDBConstants.ConnectionStringName,
CreateLeaseCollectionIfNotExists = true,
LeaseCollectionName = CosmosDBConstants.LeaseConainer)]IReadOnlyList<Document> input,
[Inject] ILoggingService loggingService,
[Inject] IEmailProcessor emailProcessor)
{
var logger = new Logger(loggingService);
try
{
if (input != null && input.Count > 0)
{
foreach (Document document in input)
{
string requestBody = document.ToString();
var notification = requestBody.AsPoco<Notification>();
await emailProcessor.HandleEmailAsync(notification, logger);
logger.Info($"Email Notification sent successfully for file name: {document.Id}");
}
}
}
catch (Exception ex)
{
logger.Error($"Unable to process Documents for Email Notification for Files: {input?.Count}", ex,
nameof(NotificationChangeFeed));
throw;
}
}
}
答案 0 :(得分:0)
此错误表示lease is lost, that would typically happen when it is taken by another host. Other cases: communication failure, number of retries reached, lease not found.
Checkpoint
实现(如果您完全使用manual checkpointing
)。答案 1 :(得分:0)
LeaseLost是一个正常信号,表示当前实例拥有一个租约,但是由于负载平衡(可能是另一个实例出现或实例数量正在更改),它被另一台主机占用了。在初始化(首次启动一组实例)或由于实例数量更改而进行的重新平衡期间,这是预期的。
没有什么希望用户做的,因为这是正常生命周期的一部分。现在,该租约由另一个实例处理,该实例将读取该租约作用于的分区中发生的更改。