Communities
A collaborative platform to connect and grow with like-minded Informaticans across the globe
Product Communities
Connect and collaborate with Informatica experts and champions
Discussions
Have a question? Start a Discussion and get immediate answers you are looking for
User Groups
Customer-organized groups that meet online and in-person. Join today to network, share ideas, and get tips on how to get the most out of Informatica
Get Started
Community Guidelines
Knowledge Center
Troubleshooting documents, product guides, how to videos, best practices, and more
Knowledge Base
One-stop self-service portal for solutions, FAQs, Whitepapers, How Tos, Videos, and more
Support TV
Video channel for step-by-step instructions to use our products, best practices, troubleshooting tips, and much more
Documentation
Information library of the latest product documents
Velocity (Best Practices)
Best practices and use cases from the Implementation team
Learn
Rich resources to help you leverage full capabilities of our products
Trainings
Role-based training programs for the best ROI
Certifications
Get certified on Informatica products. Free, Foundation, or Professional
Product Learning Paths
Free and unlimited modules based on your expertise level and journey
Resources
Library of content to help you leverage the best of Informatica products
Tech Tuesdays Webinars
Most popular webinars on product architecture, best practices, and more
Product Availability Matrix
Product Availability Matrix statements of Informatica products
SupportFlash
Monthly support newsletter
Support Documents
Informatica Support Guide and Statements, Quick Start Guides, and Cloud Product Description Schedule
Product Lifecycle
End of Life statements of Informatica products
Ideas
Events
Change Request Tracking
Marketplace
English
  • Informatica Data Quality 10.4.1
  • All Products

Table of Contents

Search

  1. Preface
  2. Introduction to Transformations
  3. Transformation Ports
  4. Transformation Caches
  5. Address Validator Transformation
  6. Aggregator Transformation
  7. Association Transformation
  8. Bad Record Exception Transformation
  9. Case Converter Transformation
  10. Classifier Transformation
  11. Comparison Transformation
  12. Consolidation Transformation
  13. Data Masking Transformation
  14. Data Processor Transformation
  15. Decision Transformation
  16. Duplicate Record Exception Transformation
  17. Expression Transformation
  18. Filter Transformation
  19. Hierarchical to Relational Transformation
  20. Java Transformation
  21. Java Transformation API Reference
  22. Java Expressions
  23. Joiner Transformation
  24. Key Generator Transformation
  25. Labeler Transformation
  26. Lookup Transformation
  27. Lookup Caches
  28. Dynamic Lookup Cache
  29. Macro Transformation
  30. Match Transformation
  31. Match Transformations in Field Analysis
  32. Match Transformations in Identity Analysis
  33. Normalizer Transformation
  34. Merge Transformation
  35. Parser Transformation
  36. Python Transformation
  37. Rank Transformation
  38. Read Transformation
  39. Relational to Hierarchical Transformation
  40. REST Web Service Consumer Transformation
  41. Router Transformation
  42. Sequence Generator Transformation
  43. Sorter Transformation
  44. SQL Transformation
  45. Standardizer Transformation
  46. Union Transformation
  47. Update Strategy Transformation
  48. Web Service Consumer Transformation
  49. Parsing Web Service SOAP Messages
  50. Generating Web Service SOAP Messages
  51. Weighted Average Transformation
  52. Window Transformation
  53. Write Transformation
  54. Appendix A: Transformation Delimiters

Developer Transformation Guide

Developer Transformation Guide

Back Next

Run-time Properties

Run-time Properties

Set the run-time properties to enable and configure lookup caching. You must add the Lookup transformation to a mapping before you can configure run-time lookup properties.
The following table describes run-time properties for Lookup transformations that perform flat file, reference table, or relational lookups:
Property
Description
Lookup Caching Enabled
Indicates whether the Integration Service caches lookup values.
When you enable lookup caching, the Integration Service queries the lookup source once, caches the values, and looks up values in the cache. Caching the lookup values can increase performance on large lookup tables.
When you disable caching, each time a row passes into the transformation, the Integration Service issues a select statement to the lookup source for lookup values.
The Integration Service always caches flat file lookups.
Lookup Data Cache Size
Amount of memory that the Data Integration Service allocates to the data cache for the transformation at the start of the mapping run. Select Auto to have the Data Integration Service automatically calculate the memory requirements at run time. Enter a specific value in bytes when you tune the cache size. Default is Auto.
Lookup Index Cache Size
Amount of memory that the Data Integration Service allocates to the index cache for the transformation at the start of the mapping run. Select Auto to have the Data Integration Service automatically calculate the memory requirements at run time. Enter a specific value in bytes when you tune the cache size. Default is Auto.
Cache File Name Prefix
Prefix for the cache file. You can specify the cache file name prefix for a persistent lookup cache.
Pre-build Lookup Cache
Allows the Integration Service to build the lookup cache before the Lookup transformation receives the data. The Integration Service can build multiple lookup cache files at the same time to increase performance.
Configure one of the following options:
  • Auto. The Integration Service determines the value.
  • Always Allowed. Allows the Integration Service to build the lookup cache before the Lookup transformation receives the data. The Integration Service can build multiple lookup cache files at the same time to increase performance.
  • Always disallowed. The Integration Service cannot build the lookup cache before the Lookup transformation receives the first row.
Lookup Cache Directory Name
Directory used to build the lookup cache files when you configure the Lookup transformation to cache the lookup source.
Default is the CacheDir system parameter. You can configure another system parameter or user-defined parameter for this property.
Re-cache from Lookup Source
Rebuilds the lookup cache to synchronize the persistent cache with the lookup table. Recache the lookup from the database when the Lookup transformation has a persistent lookup cache and the lookup table changes occasionally.
0 COMMENTS
We’d like to hear from you!