TIMEFRAME:
10:51AM PST 12/01/2019 to 11:25AM PST 12/01/2019
AFFECTED SYSTEMS:
Two (2) Zuora production tenants in US Hosted Production environment
SYMPTOMS:
Database subsystem active writer unresponsive for one tenant shard
ROOT CAUSE:
Database subsystem bug causing instance failure
RESOLUTION
Recovery and restart of failed instance
FUTURE PREVENTATIVE MEASURES:
Upgrades of database subsystem for this instance scheduled for FY20Q1 to address future stability issues