SAP ABAP Data Element MC_CM_PSIZE (Packet Size of Data Processing in Copy Management)
Hierarchy
☛ BBPCRM (Software Component) BBPCRM
   ⤷ CRM (Application Component) Customer Relationship Management
     ⤷ CRM_APPLICATION (Package) All CRM Components Without Special Structure Packages
       ⤷ MCS (Package) R/3 application development: Logistics Information Warehouse
Basic Data
Data Element MC_CM_PSIZE
Short Description Packet Size of Data Processing in Copy Management  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type MC_PSIZE    
Data Type NUMC   Character string with only digits 
Length 6    
Decimal Places 0    
Output Length 6    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 10 Pack. Size 
Medium 15 DP packet size 
Long 27 Data processing packet size 
Heading 10 Pack. Size 
Documentation

Definition

When "Data packet size" is selected, the system displays the number of data records that will be read from the database table in the source info structure for later processing in Copy Management.

The packet size has a direct influence on the commit frequency of the program (the frequency of the DB commit). In turn, these affect the number of rollback segments required, and how big the rollback area will need to be to run the copy job. In the rollback area, information about data changes for a possible DB rollback are stored.

A large (small) data packet causes a low (high) commit frequency and therefore generally requires a large (small) rollback area ("many" ("few") rollback segments).

Therefore program termination for example ("DBIF_RSQL_ERROR") can be counteracted by the following parametrization:

  • "Snapshot too old": Increase the size of the data packets
  • "Rollback-Segment too small": Reduce the size of the data packets

A data packet size of 10,000 is preset; if no value is entered, 1,000 records are selected for each.

When reading external data via Functional Enhancement RMCAF000, the packet size is available as an import parameter I_PSIZE of the customer exit EXIT_RMCAF000_001. A packet size of 50,000 is preset here.

It is only possible to configure the packet size in the expert mode; in all other cases, 1,000 is used.

History
Last changed by/on SAP  19980728 
SAP Release Created in