When: 14:51 - 15:16 PDT April 17 (06:51 - 07:16 KST April 18; 21:51 - 22:16 GMT April 17) Impact: Service recovery began at 15:12 PDT and was fully operational at 15:16 PDT. Root Cause & Remediation: ElastiCache infrastructure failed and triggered a failover event. Further investigation in process with AWS to identify root cause and next steps.