/// <summary>
/// Delete Azure Function Logs from an Azure storage account given the storage connection string.
/// </summary>
/// <param name="functionName"></param>
/// <param name="storageConnectionString"></param>
/// <returns></returns>
public static bool RemoveAzureFunctionLogs(string functionName, string storageConnectionString)
{
if (!string.IsNullOrEmpty(storageConnectionString))
{
var operationContext = new OperationContext();
var storageAccount = CloudStorageAccount.Parse(storageConnectionString);
var tableClient = storageAccount.CreateCloudTableClient();
var logs = FunctionLogs.GetAzureFunctionLogs(functionName);
var table = tableClient.GetTableReference(Constants.AzureFunctionLogTableName);
var partitions = logs.GroupBy(log => log.PartitionKey);
var executionLogsCount = logs.Count(log => log.PartitionKey.Equals(Constants.AzureFunctionLogExecutionPartitionKey,
StringComparison.CurrentCultureIgnoreCase));
var count = 0;
const int batchLimit = 100;
IList <TableResult> deleteResults;
foreach (var partition in partitions)
{
var tb = new TableBatchOperation();
var logCount = partition.Count();
while (logCount > 0)
{
var logPool = partition.Skip(count);
//azure storage can only process 100 operations at any given time
var selectedLogs = logPool.Take(batchLimit).ToList();
selectedLogs.ForEach(log => tb.Add(TableOperation.Delete(log)));
try
{
deleteResults = table.ExecuteBatch(tb, null, operationContext);
tb.Clear();
}
catch (Exception e)
{
deleteResults = new List <TableResult>();
Console.WriteLine("--ERROR-- Could not delete logs. {0}", e);
}
var deletedLogsCount = deleteResults.Count(result => result.HttpStatusCode == 204);
count += deletedLogsCount;
Console.WriteLine("Deleted {0}/{1} logs", count, executionLogsCount);
logCount = logCount - selectedLogs.Count;
}
}
return(true);
}
return(false);
}
private bool RemoveAzureFunctionLogs()
{
var connectionString = ConfigurationManager.AppSettings["AzureStorageConnectionString"];
if (!string.IsNullOrEmpty(connectionString))
{
var operationContext = new OperationContext();
var storageAccount = CloudStorageAccount.Parse(connectionString);
var tableClient = storageAccount.CreateCloudTableClient();
var logs = FunctionLogs.GetAzureFunctionLogs(FunctionName);
var table = tableClient.GetTableReference("AzureFunctionsLogTable");
logs.ForEach(entity => table.Execute(TableOperation.Delete(entity)));
return(true);
}
return(false);
}
protected override bool Setup()
{
return(FunctionLogs.RemoveAllCLoudWatchLogs(FunctionName));
}
