Web Server Operation and Maintenance Manual: A Complete Strategy for Daily Monitoring and Management

For any enterprise that relies on online business, the stable operation of the website server is the core foundation for the normal development of the business. Once there are problems such as downtime and slow response, it will not only affect the user experience, but also directly cause economic losses. However, many operation and maintenance personnel are often caught in the dilemma of passive fire fighting in their daily work, and lack a systematic monitoring and management system. This article will sort out a complete set of website server operation and maintenance practical strategies from daily monitoring, parameter management, fault handling, performance optimization, etc., to help operation and maintenance personnel turn passive into active and build a technical base for business operation.

How to build a website server monitoring system?

efficient monitoring is the front link of website server operation and maintenance, which can detect latent risk in advance and avoid fault expansion. To build a scientific monitoring system, it is necessary to cover the core operation indicators of the server, while taking into account real-time and traceability.

1, core indicators real-time monitoring

to focus on monitoring the CPU usage of the website server, memory usage, disk IO and internet bandwidth of the four core indicators, you can use ZabbixPrometheus and other open source monitoring tools to set a reasonable threshold alarm, such as when the CPU usage exceeds 80% for 5 consecutive minutes Trigger email or SMS alarm to ensure that the operation and maintenance personnel can perceive the abnormality at the first time.

2, application layer status monitoring

In addition to hardware level monitoring, it is also necessary to cover the application services running on the website server, such as the status monitoring of the Web service database service. You can confirm whether the application service responds normally by sending regular heartbeat requests, checking port connectivity, etc. Once the service stops or the response times out, immediately trigger an alarm and try to automatically restart.

Second, how to manage the core parameters of the website server?

the core parameters of the web server directly affect the stability and performance of operation, it is necessary to establish a standardized parameter configuration and maintenance process in daily management to avoid compatibility problems caused by random modification.

1, system parameters regular inspection

regularly inspect the system core parameters of the website server every week, including kernel parameters file handle limit process number limit, etc., to ensure that the parameter configuration meets the current business load requirements. For example, for high concurrency scenarios, it is necessary to adjust the upper limit of file handles appropriately to avoid the error of "too many open files", which affects user request processing.

2, application parameter version control

for Web application database applications running on the web server, to establish a parameter version control mechanism, testing environment verification is required before each modification of parameters, no compatibility problems are confirmed and then synchronized to the production environment, and parameter modification logs are recorded to facilitate subsequent traceability of the root cause of the problem.

How to deal with the sudden failure of the website server?

even if there is a perfect monitoring system, the website server may still have a sudden failure, at this time, fast and effective emergency treatment is the key to reduce losses, operation and maintenance personnel need to establish a standardized fault handling process.

1, fault classification rapid positioning

first classify according to the scope and severity of the fault, such as the whole site downtime as a first-level fault, and the slow response of local pages as a second-level fault. Then quickly locate the root cause of the problem through the monitoring log system, such as checking the system log application error log of the website server to confirm whether it is a hardware failure application vulnerability or a network attack.

2, Recovery and Recovery

locate the fault, give priority to quick recovery operations, such as switching the standby website server to restart abnormal services or rolling back the application version. After the fault recovery, it is necessary to organize a review meeting to analyze the deep causes of the fault, optimize the monitoring threshold or management process, and avoid similar problems from happening again.

4, how to optimize the performance of the website server?

as the business volume grows, the load of the website server will gradually increase, and regular performance optimization can prolong the service life of the server, improve the user access experience, and reduce the operation and maintenance cost.

1, quota dynamic adjustment

dynamically adjust the quota according to the business load fluctuation of the website server, such as allocating more CPU and memory resources to the core application during peak hours, and releasing idle resources to background tasks during low peak hours. For Cloud as a Service, you can also use the elastic scaling function to automatically increase or decrease the server instance to match the business needs.

2, redundancy and cache strategy optimization

configure the caching mechanism on the website server, such as using Redis to cache database query results and Nginx to cache static resources to reduce the request pressure of the backend server. At the same time, establish a server redundancy architecture to distribute user requests to multiple website servers through load balancing to avoid single points of failure and improve the fault tolerance of the overall system.

To sum up, the operation and maintenance of the website server is a systematic project, which requires the whole process from monitoring system construction, core parameter management, fault emergency treatment to performance optimization. By establishing a standardized DevOps flow, the operation and maintenance personnel can effectively reduce the failure risk of the website server, improve the operation stability, and provide reliable technical support for the continuous development of online business. At the same time, it can also reduce the workload of passive fire fighting and improve the efficiency and value of operation and maintenance work.