Delete unflushed file from Azure Data Lake Gen 2 - azure

Question

To upload a file to ADL first you need to:
do a put request with the ?resource=file parameters (this creates a file on the ADL)
append data to the file with the ?action=append&position=<N> parameters
lastly, you need to flush the data with ?action=flush&position=<FILE_SIZE>
My question is:
Is there a way to tell the server how long the data should live if it is not flushed(written).
Since you need to create a file first to write data into it, there might be scenarios where the flush does not happen, and you are stuck with an empty file in the data lake.
I could not find anything on the Microsoft documentation about this.
Any info would be appreciated.

Answer 1

Updated 0219:
If you just call the append api, but not call the flush api, then the uncommitted data will be saved in azure within 7 days.
The uncommitted data will be deleted automatically after 7 days and cannot be deleted from the your end.
Origianl:
The SDK for Azure Datalake Storage Gen2 is ready, and you can use it to operate ADLS Gen2 more easier than using rest api.
If you're using .NET/c#, there is a SDK for Azure Datalake Storage Gen2: Azure.Storage.Files.DataLake.
Here is the official doc for how to use this SDK to operate ADLS Gen2, and the c# code below is used to delete a file / upload a file for ADLS Gen2:
static void Main(string[] args)
{
string accountName = "xxx";
string accountKey = "xxx";
StorageSharedKeyCredential sharedKeyCredential =
new StorageSharedKeyCredential(accountName, accountKey);
string dfsUri = "https://" + accountName + ".dfs.core.windows.net";
DataLakeServiceClient dataLakeServiceClient = new DataLakeServiceClient
(new Uri(dfsUri), sharedKeyCredential);
DataLakeFileSystemClient fileSystemClient = dataLakeServiceClient.GetFileSystemClient("w22");
DataLakeDirectoryClient directoryClient = fileSystemClient.GetDirectoryClient("t2");
// use this line of code to delete a file
//directoryClient.DeleteFile("22.txt");
//use the code below to upload a file
//DataLakeFileClient fileClient = directoryClient.CreateFile("22.txt");
//FileStream fileStream = File.OpenRead("d:\\foo2.txt");
//long fileSize = fileStream.Length;
//fileClient.Append(fileStream, offset: 0);
//fileClient.Flush(position: fileSize);
Console.WriteLine("**completed**");
Console.ReadLine();
}
For Java, refer to this doc.
For Python, refer to this doc.