Non-technical Description

An issue occurred with an overnight task which meant users were only seeing one trainee in the revalidation app.

Trigger

Detection

Resolution

Timeline

All times in BST unless indicated

• 22 Jun 2023 :

• 22 Jun 2023 :

• 22 Jun 2023 08:53 : User reported (on Teams) revalidation module is showing one person under notice

• 22 Jun 2023 09:30 : Stopped the 2-hourly checks of submitted recommendation, shortly after stopped the service temporarily to stop unhelpful logging

• 22 Jun 2023 09:41 : Moved sync start messages to new queues for debugging

• 22 Jun 2023 09:43 : Found logging to suggest incident started at 00:05 - around the time of the gmc sync job starting

• 22 Jun 2023 ~ 9:45 : Stopped gmc-client task on prod

• 22 Jun 2023 ~10:00 : Restarted gmc-client task on prod, observed the same issue, task stopped again.

• 22 Jun 2023 10:15 : Changed Log level for gmc-client (set to debug) and pushed to preprod

• 22 Jun 2023 11:30 added JAVA_TOOL_OPTIONS in task definition, then updated memory from 512M to 2G.

Root Cause(s)

Action Items

Lessons Learned