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28 lines
1.3 KiB
Markdown
28 lines
1.3 KiB
Markdown
# Top tab
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The Top tab allows you to run [Netdata Functions](/docs/top-monitoring-netdata-functions.md) on a node where a Netdata Agent is running. These routines are exposed by a given collector.
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They can be used to retrieve additional information to help you troubleshoot or to trigger some action to happen on the node itself.
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> **Tip**
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>
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> You can also execute a Function from the [Nodes tab](/docs/dashboards-and-charts/nodes-tab.md), by pressing the `f(x)` button.
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> **Note**
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> If you get an error saying that your node can't execute Functions please check the [prerequisites](/docs/top-monitoring-netdata-functions.md#prerequisites).
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The main view of this tab provides you with (depending on the Function) two elements: a visualization on the top and a table on the bottom.
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Visualizations vary depending on the Function and most allow for user customization.
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On the top right-hand corner you can:
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- Refresh the results (Given that the dashboard is on `Paused` mode)
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- Set the update interval of the results.
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## Functions bar
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The bar on the right-hand side allows you to select which Function to run, on which node, and then depending on the Function, there might be more fine-grained filtering available.
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For example the `Block-devices` Function allows you to filter per Device, Type, ID, Model and Serial number or the Block devices on your node.
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