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Documenting

DateneDate

Authors

Reuben Roberts Andy Dingley

Status

Done

Summary

https://hee-tis.atlassian.net/browse/TIS21-2191

Impact

NDW downstream processes compromised, including Hicom Leave Manager data transfer

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The overnight job to transfer data to the NDW for the TIS production, staging and NIMDTA environments failed. This in turn triggered the failure of the NDW ETL process, and consequently the data transfer to Hicom Leave Manager. Due to further oversight, the same issue recurred the following night. In both instances, the TIS and NDW jobs were rerun, but Hicom only imports data once a day, so this system would have been left with data two days stale. The following graphic indicates the downstream effects, particularly the ‘Hicom Leave Manager Server’ swimlane: ETLs on Swim-lane .

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Trigger

  • Breaking change in third-party component, and subsequent misunderstanding that the initial job rerun was not a fix to the underlying problem per se.

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