What does this log entry mean - Cancel initiated for Exchange Producer

Question

Is there anybody who can tell me what could this log entry mean:
--Cancel initiated for Exchange Producer: <<66800621>> DbGateway Exchange*
I'm asking because I have problem. In two physical sources (physical databases) I have two tables TABLE_1 has 60k rows TABLE_2 has 1 row. Next step these tables are "Binary Join" by BI server
so it looks like here:
-------------------- Sending query to database named OBI (id: <<66800621>>):
select T7101.SYMBOL as c1,
T7101.TABLE_1 as c2
from
TABLE_1 T7101 /* TABLE_1_ALIAS */
order by c2
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Sending query to database named OBI_BACK (id: <<66800638>>):
select T46142.KATEGORIA as c1,
T46142.FIRMANO as c2
from
TABLE_2 T46142
order by c2
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Execution Node: <<66800638>>, Close Row Count = 1, Row Width = 24 bytes
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Cancel initiated for Exchange Producer: <<66800621>> DbGateway Exchange
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Execution Node: <<66800621>> DbGateway Exchange, Close Row Count = 3, Row Width = 80 bytes
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Execution Node: <<66800638>> DbGateway Exchange, Close Row Count = 1, Row Width = 24 bytes
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Execution Node: <<66800654>> Binary Join, Close Row Count = 0, Row Width = 104 bytes
+++marek.gregor:c350000:c350006:----2010/03/03 13:30:17
-------------------- Execution Node: <<66800582>> Projection, Close Row Count = 0, Row Width = 76 bytes
As you see first is executed select from TABLE_2 (Node: <<66800638>>, Close Row Count = 1) and this is correct number of close row count
next we have
Cancel initiated for Exchange Producer:(for node with SELECT ROM TABLE_2) - and I don't know what that's mean
and after this we have
Execution Node: <<66800621>> DbGateway Exchange, Close Row Count = 3
And this is incorrect number of CloseRowCount (should be aprox. 60k)
Finally result is wrong because we have no records (inner join by BI Server doesn't work :( )
Thank you for help
Edited by: markog on Mar 3, 2010 2:03 PM

Answer 1

I'm wrestling with getting all of this to work myself.
Can you see the job in XGrid Admin? It sounds as if the job is failing, but I can't be sure. Clicking on the job in XGrid Admin should give you a "play by play" and tell you where it is failing.
My experience has shown me that permissions is the root cause of alot of issues, and I cannot find any clear reference on what permissions the "Podcasts" folder needs to make all of this work.
Following the documentation, the "pcastxgrid" user doesn't actually get assigned any permissions via the file system or Group membership, so I'm not sure how all of this needs to be set.
Hope this helps.