Final Update: Sunday, 30 June 2019 22:59 UTC
We've confirmed that all systems are back to normal with no customer impact as of 6/30, 10:05 PM UTC. Our logs show the incident started on 6/30,12 AM UTC and that during the ~ 22 hours that it took to resolve the issue customers in East US experienced Data latency issues while accessing their data in Log analytics.
- Root Cause: The failure was due to recent configuration change to a backend service which exhausted available resources.
- Incident Timeline: 22 hours, 6/30 12 AM UTC through 6/30,10:05 PM UTC
We understand that customers rely on Log analytics as a critical service and apologize for any impact this incident caused.
-Anupama