2017-08-15 Hicom DR refresh failed for HEELIVE.vwTeachingSession
Date | 2017-08-14 |
Authors | |
Status | Complete |
Summary | Hicom's DR refresh failed so the TIS ETLs only had access to the previous day's data. |
Impact | Revalidation nationally had stale data. |
Root Cause
Hicom have a changed the following column datatypes;
Location VC50 > VC100
Subject VC(max) > Text
Notes VC(max) > Text
Trigger
Their nightly scheduled update.
Resolution
Updated Mirror table definations
Detection
Ran daily row count checks between DR and Mirror and noted the following differences;
owner | tab_name | rc | distinc_rc | Vlookup Mirror RC | RC Diff | Duplicates exist in DR |
HEELIVE | vwTeachingSession | 323336 | 323336 | 323315 | -21 | No |
Action Items
Action Item | Type | Owner | Issue |
---|---|---|---|
mitigate/prevent |
Timeline
Supporting Information
e.g. monitoring dashboards
Slack: https://hee-nhs-tis.slack.com/
Jira issues: https://hee-tis.atlassian.net/issues/?filter=14213