The document discusses Symantec's use of Cloudbreak and Ambari to provision their big data platforms. Some key points: - Symantec handles huge volumes of security data and needed a scalable analytics platform. - They used Cloudbreak to provision Hadoop clusters on multiple clouds in a self-service manner for developers. - Cloudbreak was customized to support their specific AWS configurations, Openstack integration, and monitoring/alerting needs. - Ambari is used for cluster installation and management. Custom stacks were also developed. - Monitoring is done via Ambari, OpenTSDB, Grafana and PagerDuty to ensure cluster health.