Windows Workflow 4 Correlation Query includes website instance name in instance key calculation and fails

Question

I am trying to host a long running workflow service on Azure but I am having problems with correlation.
I have got the timeToUnload and the timeToPersist set to 0 and I have

Answer 1

After decompiling and searching a lot, I finnaly found where the key is Generated.

In the class System.ServiceModel.Channels.CorrelationKey, System.ServiceModel

The method GenerateKeyString does the trick. Now I have to find a way to override this method and make my own generating key algorithm so the same instance can run in multiple web servers with different names.

private static Guid GenerateKey(string keyString)
{
  return new Guid(HashHelper.ComputeHash(Encoding.Unicode.GetBytes(keyString)));
}

private static string GenerateKeyString(ReadOnlyDictionaryInternal keyData, string scopeName, string provider)
{
  if (string.IsNullOrEmpty(scopeName))
    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("scopeName", System.ServiceModel.SR.GetString("ScopeNameMustBeSpecified"));
  if (provider.Length == 0)
    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("provider", System.ServiceModel.SR.GetString("ProviderCannotBeEmptyString"));
  StringBuilder stringBuilder1 = new StringBuilder();
  StringBuilder stringBuilder2 = new StringBuilder();
  SortedList sortedList = new SortedList((IDictionary) keyData, (IComparer) StringComparer.Ordinal);
  stringBuilder2.Append(sortedList.Count.ToString((IFormatProvider) NumberFormatInfo.InvariantInfo));
  stringBuilder2.Append('.');
  for (int index = 0; index < sortedList.Count; ++index)
  {
    if (index > 0)
      stringBuilder1.Append('&');
    stringBuilder1.Append(sortedList.Keys[index]);
    stringBuilder1.Append('=');
    stringBuilder1.Append(sortedList.Values[index]);
    stringBuilder2.Append(sortedList.Keys[index].Length.ToString((IFormatProvider) NumberFormatInfo.InvariantInfo));
    stringBuilder2.Append('.');
    stringBuilder2.Append(sortedList.Values[index].Length.ToString((IFormatProvider) NumberFormatInfo.InvariantInfo));
    stringBuilder2.Append('.');
  }
  if (sortedList.Count > 0)
    stringBuilder1.Append(',');
  stringBuilder1.Append(scopeName);
  stringBuilder1.Append(',');
  stringBuilder1.Append(provider);
  stringBuilder2.Append(scopeName.Length.ToString((IFormatProvider) NumberFormatInfo.InvariantInfo));
  stringBuilder2.Append('.');
  stringBuilder2.Append(provider.Length.ToString((IFormatProvider) NumberFormatInfo.InvariantInfo));
  stringBuilder1.Append('|');
  stringBuilder1.Append((object) stringBuilder2);
  return ((object) stringBuilder1).ToString();
}