Summary
EuWest1 Read Replica experienced high CPU utilization on 18th of October 2019, between 13:00 and 14:20 UTC due to a high load generated by complex queries. Only one tenant was affected by this incident. During our investigations, we identified the affected endpoints and the queries that were causing high load. We pinpointed the cause of the issue: requests generated by one of the tenants. We reconfigured our databases to support the increased load, contacted the tenant to check their systems. Once the tenant has confirmed that they reduced the API rate, the incident was over.
What Are We Doing About This?
In order to avoid future incidents, we defined the following actions:
At Mambu we take our commitment to deliver a high quality service very seriously and we sincerely apologise for the inconvenience this issue has caused. If you have any questions, please contact us via our usual support channels.