Linux Load Monitoring

About Linux Load Monitoring

Linux Load monitoring allows you setting load average (see http://en.wikipedia.org/wiki/Load_(computing) ) thresholds so that you get alerted if your Linux machine’s load reaches some critical levels preset by you.

Note: for all types of Server/Device monitoring (see Server/Device Monitoring), you need to have Smart Agent downloaded, installed and running on your machine to configure the monitoring (see Downloading Agents and Installing Smart Agent for Windows and Linux).

Adding Linux Load Monitoring

Go to the Monitors menu, select Server-Device->Linux Load and click Add.

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The Add Server/Device Monitor – Step 1 window will open.

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If you have already downloaded and installed Smart Agent for Linux, select it from the Agent list.

Make sure that your Smart Agent for Linux is running, as shown under Agent Status. If the Agent is stopped, run it on your Linux machine (see Downloading, Installing and Running Smart Agent for Linux).

Status Monitoring Smart Agent

If you haven’t downloaded Smart Agent for Linux yet, click on the Download Agent button to download it. Follow the instructions under Downloading, Installing and Running Smart Agent for Linux.

Note that it may take up to 5 min for newly installed Agent to appear in the list (you can click Refresh to refresh the agent list).

Select the Linux Agent from the list, and click Next.

The Add Server/Device Monitor – Step 2 window will appear.

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Select from the Monitor Group combo box the monitor group for this monitor to be assigned to.

You can also create a new monitor group by clicking on the “+” icon next to Add Group.

You can configure here a threshold of Critical severity level for the new monitor (see Thresholds). You can also edit thresholds of the monitor after it is added in your dashboard.

The number of consecutive checks the threshold condition must be met in order for the monitor to enter Critical state is set to be 1 in the threshold.

Enter values under the 1 min, 5 min and 15 min limits. Your monitor will enter Critical state whenever any of these limits are crossed. You can then assign alert rules to your monitor to start receiving alerts whenever the monitor enters a problem state (see Alert Rules in Alerts 2.0).

To add more Server-Device monitors of different types to the same Smart Agent, click the green “+” button under Add More Monitors (see Adding Multiple Server-Device and Application Monitors for the Same Agent).

Click Add when finished.

The Alert Configuration window will appear.

  • Click Send to All Contacts if you want to send alerts for this monitor to all contacts.
  • Click Custom Configuration (Advanced) to configure sending alerts for this monitor only to selected contacts. The Alert Rules window will open. Click on the Add Alert Rule button to configure alert rule(s) for your monitor.

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Set up the alert rule and click Add Rule. See Alert Rules in Alerts 2.0 for more info about alert rules.

Note: To be able to add alert rules, you need to set up thresholds (Critical or Warning) in your monitor first.

A threshold includes two conditions connected by a logical OR. If any of the conditions matches the monitor will enter your specified state.

  • Check fails (response timed out, connection failure, etc)
  • Any or all of your selected metrics meet the failure conditions you specified for them

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See Thresholds for more info.

  • Click Don’t Send Alerts if you don’t want any alerts for this monitor to be sent.

Your newly created Server-Device monitor will appear in your Monitis dashboard. Wait until it loads the first results.

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Note: by default check frequency for Server/Device monitors is 5 min. You can upgrade your Server/Device monitors to run on 1 min frequency. See Check Frequency in Server/Device Monitors for more info.