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Is there any risk on running the Full Data Collection Job in RRDI?


Jorge Valdeiglesias (541623) | asked Aug 01 '13, 10:16 a.m.
edited Sep 17 '13, 6:26 a.m. by Krzysztof Ka┼║mierczyk (7.4k34694)
 We are having an issue with some lost data (never retrieved) in the DWH and the solution in the Sandbox was re running the full ETL. Problem is I've been told that in an older version of RTC you lost some calculated data when you do that.

Question is, is there any risk on running the Full Data Collection Job? Is there any consideration to be taken into account?

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Francesco Chiossi (5.7k1719) | answered Aug 05 '13, 4:53 a.m.
edited Aug 05 '13, 4:57 a.m.
Hello Jorge,

the order on which the jobs are executed by the scheduled data collection is the following:
  • Jazz Team Server/Common and Repository
  • Rational® Team Concert/Common and Repository
  • Rational Quality Manager/Common and Repository
  • Rational Team Concert/APT and SCM
  • Rational Team Concert/Work Items and Build
  • Rational Quality Manager/Work Items
  • Rational Quality Manager/Quality Management
  • Jazz Team Server/Requirements
  • Jazz Team Server/Star
See: Running the data collection jobs

The full data collection jobs can only be started manually.

The effect on reports showing historical trends that are calculated during the ETL run will be that, if for example the full ETL will take 1 week to complete, you will only have 1 data point in the report instead of the expected 7.

Best Regards,
Francesco
Jorge Valdeiglesias selected this answer as the correct answer

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Krzysztof Ka┼║mierczyk (7.4k34694) | answered Aug 01 '13, 11:01 a.m.
Hello Jorge,
Running full DWH job may take even couple of days, depending on how old your repository is. During that time there are running many SQL queries on RTC database. This might impact your server performance,

Best regards,
Krzysztof Kazmierczyk

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Jorge Valdeiglesias (541623) | answered Aug 01 '13, 1:46 p.m.
 Yes, I imagine it will take a while, but beside that, is there any other consideration? For example, how would you run the jobs? One by one? Or is there an specific order to run them, o maybe a command. And most important, how will this affect the calculated data (for example, now the burndown charts use the time the ETL was run to draw a point in the chart)?

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