Error ODS activation - sql error when accessing a table.

Question

Hi,
sometimes occurs an error by activation ODS. I have proces chain and when is loaded second packet an error occurs. In monitor>>
-RSMPC 128, datapacket 3 is wrong, with status number 9
-RSMPC 131
-RSDRO 108 - communcation error (sql error when accessing a table)
In sm21>
-sql error when accessing a table
-The exception, which is assigned to the class 'CX_SY_OPEN_SQL_DB', was  
either                                                      caught nor passed along using a RAISING clause, in the procedure <b>"UPDATE_ATAB"</b>   "(FORM)"                                                                    
Since the caller of the procedure could not have expected this exception     
   to occur, the running program was terminated.                               
  The reason for the exception is:                                             
  The database system recognized that your last operation on the database      
  would have led to a deadlock.                                                
  Therefore, your transaction was rolled back                                  
  to avoid this.                                                                       
  ORACLE always terminates any transaction that would result in deadlock.      
  The other transactions involved in this potential deadlock                   
  are not affected by the termination.
I have BW 3.5.
Thank You very much.

Answer 1

There are a few different scenarios that I can think of where this might come up that all involve what might resulting in parallel (concurrent)processes:
Loading packets in parallel - that is there are X number of processes loading packets concurrently. This could be set in your IMG settings system wide or in the InfoPackage for just this datasource.   You seem to indicate that you don't have this.
Database parallel processing - RSAMDIN - ORA_PARALLEL_DEGREE ( there was a different RSADMIN parm for older versions - forget what SP the change came with).
You have multiple InfoPackages for the datasource, each loading what should be a different range of data, and they run atthe same time.
You could be loading from two different datasources to the ODS at the same time.
If any of these are true, I would look at bumping the INITRANS setting up.  Your DBA will probably need to do this for table and its indices.  There is a Note - 831234 that allows you to create a parameter in RSADMIN that will specify a INITRANS value (e.g. 20) rather than using the default. The ODS would need to be activated to pick this new setting up for the table to be altered. 
You could also look at the Processing settings for the InfoPackage and change to PSA first, then target to see if that helps. 
Or if you are loading from two different datasources at the same time, you might adjust your schedule so that doesn't happen.
Pizzaman