Project: HertzBeat (Observability and Analysis / Observability)
File: 2023-02-15-monitor-linux.md

title: Monitoring Linux Operating Systems Using Open Source Real-Time Monitoring HertzBeat author: tom author_title: tom author_url: https://github.com/tomsun28 authorimageurl: https://avatars.githubusercontent.com/u/24788200?s=400&v=4 tags: [opensource, practice] keywords: [Open source monitoring tool, operating system monitoring, Linux monitoring] HertzBeat is an open source, easy-to-use and friendly real-time monitoring tool that does not require Agent and has powerful custom monitoring capabilities. Integrate monitoring-alarm-notification, support monitoring of application services, databases, operating systems, middleware, cloud native, etc., threshold alarms, alarm notifications (email WeChat Dingding Feishu SMS Slack Discord Telegram). It configurable protocol specifications such as Http, Jmx, Ssh, Snmp, Jdbc, Prometheus, etc. You only need to configure YML to use these protocols to customize and collect any metrics you want to collect. Do you believe that you can immediately adapt to a new monitoring type such as K8s or Docker just by configuring YML? HertzBeat's powerful customization, multi-type support, easy expansion, and low coupling, hope to help developers and small and medium teams quickly build their own monitoring tools. Github: https://github.com/apache/hertzbeat HertzBeat Click Add Linux Monitoring Path: Menu -> Operating System Monitoring -> Linux Operating System -> Add Linux Operating System Monitoring Configure the parameters required for new monitoring Linux Fill in the Linux peer IP, SSH port (default 22), account password, etc. on the monitoring page, and finally click OK to add. For other parameters such as collection interval, timeout period, etc., please refer to the help document https://hertzbeat.com/docs/help/mysql/ Complete , now we have added the monitoring of Linux, check the monitoring list to see our added items. Click Operation->Monitoring Details Icon of the monitoring list item to browse the real-time monitoring metric data of Linux. Click Monitoring History Details TAB to browse the historical monitoring metric data chart of Linux. DONE! Done! To sum up, it only takes one step On the HertzBeat monitoring page, configure the IP port account password and add Linux monitoring :::tip Through the above two steps, we have completed the monitoring of Linux. We can view the monitoring details and metrics in HertzBeat at any time to observe its service status. Of course, just looking at it is definitely not perfect. Monitoring is often accompanied by alarm thresholds. When Linux performance metrics exceed our expectations or are abnormal, we can promptly notify our corresponding person in charge. The person in charge receives the notification and handles the problem. It is a complete monitoring and alarm process. ::: Next, we will demonstrate step by step how to configure threshold alarm notifications in the HertzBeat system, so that when Linux metrics are found to be abnormal, they will be notified to us in time Configure an alarm threshold for an important metric Path: Menu -> Threshold Rules -> Add Threshold Select the configured metric object. Linux monitors mainly related metrics such as cpu, memory, disk, network performance, etc. For example, we set the threshold for the metric `CPU utilization` `cpu` ->

When the Linux cpu utilization is greater than 90% When a warning is issued. Here we configure to send an alarm when the `usage>90` of this metric `cpu`, the alarm level is Warning Alarm, which will be triggered after three times, as shown in the figure below. Add message notification recipients Configure the receiver to let the alarm message know who to send and how to send it. Path: Menu -> Alarm Notification -> Alarm Recipient -> Add New Recipient Message notification methods support email, DingTalk, WeChat Work, Feishu, WebHook, SMS, etc. Here we take the commonly used DingTalk as an example. Refer to this https://hertzbeat.com/docs/help/alertdingtalk to configure the robot on DingTalk and set the security custom keyword `HertzBeat `, get the corresponding `accesstoken` value. Configure the receiver parameters in HertzBeat as follows. Alarm Notification->New Recipient->Select DingTalk Robot Notification Method->Set DingTalk Robot ACCESS_TOKEN->OK Configure the associated alarm notification strategy [Add notification strategy] -> [Associate the recipient just set] -> [OK] Configure the alarm notification policy to bind the alarm message with the receiver, so that you can decide which alarms to send to whom. ``` [HertzBeat warning notification] Alarm target object: linux.cpu.usage Affiliated monitoring ID: 483783444839382 Belonging monitoring name: Linux_182.33.34.2 Alarm level: warning alarm Alarm trigger time: 2023-02-15 21:13:44 Content details: The linux cpu usage is too high. now is 95. ``` :::tip This practical article took us to experience how to use the open source real-time monitoring tool HertzBeat to monitor Linux metric data. We can find that HertzBeat, which integrates `monitoring-alarm-notification`, is more convenient in operation and use. Linux can be included in the monitoring and alarm notification, and there is no need to deploy multiple components and write configuration files. ::: Only one docker command is needed to install and experience heartbeat: `docker run -d -p 1157:1157 --name hertzbeat apache/hertzbeat` is a real-time monitoring and alarm system with powerful custom monitoring capabilities and no Agent required. Monitoring of application services, databases, operating systems, middleware, cloud native, etc., threshold alarms, and alarm notifications (email, WeChat, Dingding, Feishu, SMS, Discord, Slack, Telegram). We make protocol specifications such as `Http, Jmx, Ssh, Snmp, Jdbc, Prometheus` configurable, and you only need to configure YML to use these protocols to customize and collect any metrics you want to collect. Do you believe that you can immediately adapt to a new monitoring type such as K8s or Docker just by configuring YML? The powerful customization of `HertzBeat`, multi-type support, easy expansion, and low coupling, hope to help developers and small and medium-sized teams quickly build their own monitoring tools. Github: https://github.com/apache/hertzbeat Gitee: https://gitee.com/hertzbeat/hertzbeat Website Monitoring, Port Availability, Http Api, Ping Connectivity, Jvm, SiteMap, Ssl Certificate, SpringBoot, FTP Server Mysql, PostgreSQL, MariaDB, Redis, ElasticSearch, SqlServer, Oracle, MongoDB, Dameng, OpenGauss, ClickHouse, IoTDB Linux, Ubuntu, CentOS, Windows Tomcat, Nacos, Zookeeper, RabbitMQ, Flink, Kafka, ShenYu, DynamicTp, Jetty, ActiveMQ -Kubernetes, Docker and more for your custom monitoring. Notification support `Discord` `Slack` `Telegram` `Mail` `DingTalk` `WeChat` `Feishu` `SMS` `Webhook`.