SAP Knowledge Base Article - Preview

2074582 - Lookup_ext performance problem - SAP Data Services 4.2

Symptom

  • After upgrade from SAP Data Services 3.2 to 4.2 SP3 lookup_ext function where a source table of dozen million rows need to lookup values in a lookup table of dozen million rows using PRE_LOAD_CACHE has poor performance.
  • The creation of a persistent cache table is taking a very long time. It takes up to 5 times more than in previous SAP Data Services 3.2 environment.

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Environment

  • SAP Data Services 4.2 SP03
  • Linux Redhat 6.5
  • Oracle 11g

Product

SAP Data Services 4.2

Keywords

PCACHE, PERFORMANCE, POOR, 4.2, SAP DATA SERVICES, DS, LOOKUP_EXT , KBA , EIM-DS , Data Services (Use Subcomponent) , Problem

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