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Census Bureau

Census Bureau. System IPT Decennial Systems Database Modernization Support. DRIS Decennial Response Integration System. Date: 07/30/2007. Index. What have we done in past 3 months dscmotd1 and DE101 compare Moved to DE101 and then to BE101 And many more … Work done on DE101

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Census Bureau

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  1. Census Bureau System IPT Decennial Systems Database Modernization Support DRIS Decennial Response Integration System Date: 07/30/2007

  2. Index • What have we done in past 3 months • dscmotd1 and DE101 compare • Moved to DE101 and then to BE101 • And many more … • Work done on DE101 • Scripts creation for load • Studying application for index creation • UECT creation from UNM • Writing script based on state retrieval • Unit testing for UECT

  3. Full load • Full test for UECT load- successful • Compare times with old machine • Performance and tuning • Partitioning tables • Comparing results for 2000 • Change in retrieval criteria • Retrieval criteria to LCO basis • Changed scripts • Partitioned tables based on LCO • Unit testing and full testing • Taking advantage based on CPUs • Running scripts in parallel

  4. Move DE101 to BE101 • Move scripts from DE101 to BE101 • Test all scripts for performance • Data modeling • Version difference • Production m/c • Work around/Solution • Reverse Engineering effort

  5. What have we done in past 3 months • dscmotd1 and DE101 compare • Moved to DE101 and then to BE101 • And many more … dscmotd1 BE101 DE101 • Got acceptable and best results on DE101 • Moved schema to DE101

  6. Work done on DE101 • Scripts created for • Data load • Indexes • analyzing table objects • Study application to create proper indexes • Fast data retrieval • Fast data update • Test data load and compare with old machine • Acceptable results • Data load in 1.5 hrs for whole country compare to 30 hrs on old machine

  7. UECT creation from UNM • Scripts based on state retrieval – 2000 • Unit testing • Full load testing • Full test for UECT load- successful • Compare times with old machine UNM table UECT process UNM table Retrieval based on state

  8. Performance & Tuning • Results not up to the mark • P & T was needed • Data size, too high • table partitioning UECT process Retrieval based on state

  9. Change in retrieval criteria • Data retrieval based on LCO and NOT on state based • Unit and full testing • Advantages of CPU bound operations • Scripts run in parallel UECT process Retrieval based on LCO

  10. Moving from DE101 to BE101 • Got new host • DE101 - Production • BE101 – Beta/test • Same configuration • Whole testing to be done

  11. Data Modeling Problems • Data repository was not compatible with Database version • Could not do data modeling using Oracle designer • Work around using third party tool. No stoppage of work Oracle db 10g Desktop Data modeling X Designer repository 6.x Versions not compatible DE101

  12. Work Around • Work around using third party tool. No stoppage of work Desktop Data modeling Third party tool Oracle db 10g Versions compatible Scripts creation/ execution DE101

  13. Reverse Engineering effort – not done Oracle db Desktop Data modeling DE101 Designer repository Versions compatible BE104

  14. THE END

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