Identity Service Availability Improvements
Maintenance window: April 8, 2021 00:01 to 04:00Impacted Cloud services:
Identity
Under some circumstances, specifically constant monitoring of applications using monitors that login frequently or applications with extremely long session or idle durations, stale data can be kept ‘in-cache’ when no longer needed. Over time this can lead to cache congestion. In some rare circumstances, slow cache response times have resulted. The slow cache responses have caused serious impacts on Identity response times. The cache support libraries leveraged by Identity have been updated to resolve this issue.
As part of the updates, the Identity configuration has been adjusted to provide additional bandwidth to the cache
As part of the deployment, infrastructure will be upgraded to a more recent version of the cache engine along with hardware tuning
Dedicated Identity services use a different cache engine and are not affected by this issue
Impact Level : minor
No downtime is expected for the impacted Cloud services while this maintenance is being performed. The scheduled maintenance is designed to mitigate disruptions to service availability and performance for the impacted Cloud services. However, it is possible for the impacted Cloud services to be unavailable and/or performance degraded for a short period of time during the maintenance window. Note that no changes are being applied for other Cloud services outside of the list of impacted services above and no service availability or performance disruption is expected for other Cloud services.