public static void CommandFailureRetry(RetryState retryState, string commandKeyword)
{
Logger.Write(TraceEventType.Information, string.Format(
CultureInfo.InvariantCulture,
"{0} retry number {1}. Delaying {2} ms before retry. Exception: {3}",
commandKeyword,
retryState.RetryCount,
retryState.Delay.TotalMilliseconds.ToString(CultureInfo.InvariantCulture),
retryState.LastError.ToString()));
RetryPolicyUtils.RaiseAmbientRetryMessage(retryState, SqlSchemaModelErrorCodes.ServiceActions.CommandRetry);
}
protected override bool ShouldRetryImpl(RetryState retryState)
{
Contract.Assert(retryState != null);
if (IsLessThanMaxRetryCount(retryState.RetryCount, _maxRetryCount))
{
retryState.Delay = RetryPolicyUtils.CalcExponentialRetryDelay(retryState.RetryCount, _intervalFactor, _minInterval, _maxInterval);
return(true);
}
retryState.Delay = TimeSpan.Zero;
return(false);
}
protected override bool CanRetrySqlException(SqlException sqlException)
{
// Enumerate through all errors found in the exception.
foreach (SqlError err in sqlException.Errors)
{
RetryPolicyUtils.AppendThrottlingDataIfIsThrottlingError(sqlException, err);
if (RetryPolicyUtils.IsNonRetryableDataTransferError(err.Number))
{
Logger.Write(TraceEventType.Error, string.Format(Resources.ExceptionCannotBeRetried, err.Number, err.Message));
return(false);
}
}
// Default is to treat all SqlException as retriable.
return(true);
}
protected override bool CanRetrySqlException(SqlException sqlException)
{
// Enumerate through all errors found in the exception.
bool foundRetryableError = false;
foreach (SqlError err in sqlException.Errors)
{
RetryPolicyUtils.AppendThrottlingDataIfIsThrottlingError(sqlException, err);
if (!RetryPolicyUtils.IsRetryableNetworkConnectivityError(err.Number))
{
// If any error is not retryable then cannot retry
return(false);
}
foundRetryableError = true;
}
return(foundRetryableError);
}
private void RetryConnectionCallback(RetryState retryState)
{
RetryPolicyUtils.RaiseSchemaAmbientRetryMessage(retryState, SqlSchemaModelErrorCodes.ServiceActions.ConnectionRetry, _azureSessionId);
}