There is an emerging remote computing environment known as the "cloud," which provides users with on-demand access to computing resources and services via the Internet. When it comes to keeping tabs on what's going on in the cloud, log files come in handy. The management of logs is critical in figuring out what's wrong with a cloud network or in troubleshooting existing problems. Logs can be difficult to manage and read. The logs of our cloud virtual machines are being monitored in real time, and an alert will be generated for any information, debug, error, warning, or trace messages that are found. It makes it easier for the administrators to understand what they're doing. In addition, our logic helps to generate warning messages prior to different resource quotas, such as virtual CPUs, floating IPs, and so forth. When a feature like that is available, it can help administrators to increase or release quotas without causing any inconvenience to users who create virtual machines. Through simulation, we test the feasibility and performance of our system design. We used Nagios which is currently, one of the best open-source monitoring tools in the world. With the continuous development of cloud computing, Cloud platform as a production system, comprehensive system monitoring is an essential link and an important means to maintain the reliability and stability of cloud platform. Combined with the characteristics of Telegram/ SMTP platform, this project uses Nagios Core services to collect the monitoring data of OpenStack cloud platform, and uses the alert visualization tool - Nagios to display the monitoring data in real time, designs and implements a comprehensive, intelligent and efficient monitoring system. Through testing, the system can effectively improve the reliability and stability of monitoring and alerting of cloud platform.

Real-time-Monitoring,open-source monitoring systems, remote computing environment, hybrid cloud management, Nagios time series instances, metric alerting.