Ok that appears to have been the problem.  Getting rid of 
db._common_fields.append(standard_fields) fixed it.  Didn't hone in on the 
exact problem but maybe it's because I had not null on created_by, 
modified_by fields which defaulted to auth.user_id.  Does a scheduled task 
even have a concept of a logged in user?

On Friday, January 10, 2014 7:07:32 PM UTC-5, User wrote:
>
> I created a bare bones app and the scheduler seems to work without error.  
> Not really sure what's happening with the problem app but if I had to guess 
> I'm thinking it might be related to using
>
> db._common_fields.append(standard_fields)
>
> where standard_fields is a table with fields such as date_created, 
> created_by, modified_by etc. which in turn has defaults like 
> auth.user_id.  Unexpected by me, these got appended to the scheduler 
> tables. Maybe there is some problematic interaction with this.
>
> I'm going to try explicitly adding standard_fields to my app tables rather 
> than using db._common_fields.append to see if that fixes it.
>
>
> On Friday, January 10, 2014 10:53:22 AM UTC-5, User wrote:
>
>> postgresql.  Also my app which uses same database works and I can see the 
>> tables and the row in scheduler_task table from appadmin
>>
>> On Friday, January 10, 2014 9:57:25 AM UTC-5, Niphlod wrote:
>>>
>>> what db are you using ?
>>> that error usually pops up when the scheduler can't access the 
>>> scheduler_* tables.
>>>
>>> On Friday, January 10, 2014 2:09:26 AM UTC+1, User wrote:
>>>>
>>>> I'm just getting started with the scheduler and I'm getting an error 
>>>> when I start it on windows 7:
>>>>
>>>> C:\www\web2py>python web2py.py -K my_app
>>>> web2py Web Framework
>>>> Created by Massimo Di Pierro, Copyright 2007-2014
>>>> Version 2.8.2-stable+timestamp.2013.12.09.17.54.55
>>>> Database drivers available: SQLite(sqlite3), MySQL(pymysql), PostgreSQL
>>>> (psycopg2
>>>> ), PostgreSQL(pg8000), MSSQL(pyodbc), DB2(pyodbc), Teradata(pyodbc), 
>>>> Ingres(pyod
>>>> bc), IMAP(imaplib)
>>>> starting single-scheduler for "my_app"...
>>>> ERROR:web2py.scheduler.mycomputer#10144:Error retrieving status
>>>> ERROR:web2py.scheduler.mycomputer#10144:Error retrieving status
>>>>
>>>>
>>>> This error just continually repeats until I ctrl-c.
>>>> Here is my scheduler.py:
>>>>
>>>> # coding: utf8
>>>> def doit():
>>>>     print 'hello world'
>>>>     
>>>> tasks = dict(
>>>>     doit=doit,        
>>>> )
>>>> from gluon.scheduler import Scheduler
>>>> scheduler = Scheduler(db, tasks)
>>>>
>>>>
>>>> I created a single row in the scheduler_task table. What is causing 
>>>> this error? How do I begin to debug this? (Note when browsing my site 
>>>> there 
>>>> are no errors).
>>>>
>>>>

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