ERROR when trying to train the model, as specified in the MADLIB tutorial

[Leonard Edwin]

Hello, I have been evaluating your implementation of the HDB2.1.1 sandbox, as 
requested - to validate the MADLIB installation is working as stated in the 
'Apache Madlib Confluence' tutorials.

However, I get the following ERROR when trying to train the model, as specified 
in the tutorial:

18:30:25 [SELECT - 0 rows, 839.195 secs] [Code: 0, SQL State: XX000] ERROR: 
plpy.SPIError: failed to acquire resource from resource manager, queued 
resource request is timed out due to no resource (plpython.c:4663) Where: 
Traceback (most recent call last): PL/Python function "logregr_train", line 23, 
in <module> return logistic.logregr_train(**globals()) PL/Python function 
"logregr_train", line 133, in logregr_train PL/Python function "logregr_train", 
line 260, in __logregr_train_compute PL/Python function "logregr_train", line 
75, in __compute_logregr PL/Python function "logregr_train", line 114, in 
__enter__ PL/Python function "logregr_train", line 197, in runSQL PL/Python 
function "logregr_train" ... 1 statement(s) executed, 0 rows affected, 
exec/fetch time: 839.195/0.000 sec [0 successful, 1 errors]

QUESTION - what can I do to resolve the error and continue with my evaluation 
of MADLIB using HAWQ??