private async Task <bool> TryOperation(Func <Task> func, string operation = null)
{
try
{
await func().ConfigureAwait(false);
return(true);
}
catch (Exception exc)
{
HttpStatusCode httpStatusCode;
string restStatus;
if (!AzureStorageUtils.EvaluateException(exc, out httpStatusCode, out restStatus))
{
throw;
}
if (logger.IsEnabled(LogLevel.Trace))
{
logger.Trace("{0} failed with httpStatusCode={1}, restStatus={2}", operation, httpStatusCode, restStatus);
}
if (AzureStorageUtils.IsContentionError(httpStatusCode))
{
return(false);
}
throw;
}
}
internal async Task <bool> DeleteReminderEntryConditionally(ReminderTableEntry reminderEntry, string eTag)
{
try
{
await DeleteTableEntryAsync(reminderEntry, eTag);
return(true);
}catch (Exception exc)
{
HttpStatusCode httpStatusCode;
string restStatus;
if (AzureStorageUtils.EvaluateException(exc, out httpStatusCode, out restStatus))
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.Trace("DeleteReminderEntryConditionally failed with httpStatusCode={0}, restStatus={1}", httpStatusCode, restStatus);
}
if (AzureStorageUtils.IsContentionError(httpStatusCode))
{
return(false);
}
}
throw;
}
}
public void AzureTableErrorCode_IsContentionError()
{
Assert.IsTrue(AzureStorageUtils.IsContentionError(HttpStatusCode.PreconditionFailed));
Assert.IsTrue(AzureStorageUtils.IsContentionError(HttpStatusCode.Conflict));
Assert.IsTrue(AzureStorageUtils.IsContentionError(HttpStatusCode.NotFound));
Assert.IsTrue(AzureStorageUtils.IsContentionError(HttpStatusCode.NotImplemented));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)503));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)504));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)408));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)500));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)500));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)500));
Assert.IsFalse(AzureStorageUtils.IsContentionError((HttpStatusCode)200));
}
internal async Task <string> UpsertRow(ReminderTableEntry reminderEntry)
{
try
{
return(await UpsertTableEntryAsync(reminderEntry));
}
catch (Exception exc)
{
HttpStatusCode httpStatusCode;
string restStatus;
if (AzureStorageUtils.EvaluateException(exc, out httpStatusCode, out restStatus))
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.Trace("UpsertRow failed with httpStatusCode={0}, restStatus={1}", httpStatusCode, restStatus);
}
if (AzureStorageUtils.IsContentionError(httpStatusCode))
{
return(null); // false;
}
}
throw;
}
}
private void CheckAlertWriteError(string operation, object data1, string data2, Exception exc)
{
HttpStatusCode httpStatusCode;
string restStatus;
if (AzureStorageUtils.EvaluateException(exc, out httpStatusCode, out restStatus) && AzureStorageUtils.IsContentionError(httpStatusCode))
{
// log at Verbose, since failure on conditional is not not an error. Will analyze and warn later, if required.
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.Debug((int)Utilities.ErrorCode.AzureTable_13,
$"Intermediate Azure table write error {operation} to table {TableName} data1 {(data1 ?? "null")} data2 {(data2 ?? "null")}", exc);
}
}
else
{
Logger.Error((int)Utilities.ErrorCode.AzureTable_14,
$"Azure table access write error {operation} to table {TableName} entry {data1}", exc);
}
}