Experiencing Data Latency for Log Analytics - 06/20 - Mitigating

Root cause has been isolated to high load on backend component which was impacting Log Analytics. To address this issue, we have rolled out configuration fix, Paused and restarted the responsible backend services along with scaling out backend services to catch up with latency to mitigate the issue. We have applied a series of mitigation steps and we are continuing to monitor the service health to validate mitigation in West Europe. Additional engineering teams are being engaged to verify if additional mitigation workstreams are needed and issue is mitigated for UK South. The next update will be provided in 6 hours or as events warrant. Some customers may continue to experience issues with data access, missed or delayed log search alerts, data gaps and data latency and issues with Azure Sentinel.

Due to the impact to Log Analytics, customers using Azure Automation to delete/link automation accounts to workspaces will be impacted. Customers using Azure Automation for update management solution may see their machines in a 'Not Assessed' state and automation account not linked to Log Analytics. Customers using automation for change tracking solution may not see their data updated in Log Analytics Workspace.

As our mitigation steps were successfully applied and backend services returning healthy. We are currently in the process of catching up with ingestion backlogs

Update: Wednesday, 22 June 2022 11:34 UTC

• Work Around: None
• Next Update: Before 06/22 18:00 UTC

-Sai Kumar