Applies to OnCommand Workflow Automation (WFA) 5.1.x Supported ActiveIQ Unified Manager or OnCommand Unified Manager version (UM) Issue Within WFA, one or more Unified Manager data sources is failing ...Applies to OnCommand Workflow Automation (WFA) 5.1.x Supported ActiveIQ Unified Manager or OnCommand Unified Manager version (UM) Issue Within WFA, one or more Unified Manager data sources is failing acquisition with the message: Host "wfa_server_name" is blocked because of many connection errors; unblock with "mysqladmin flush-hosts".