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docs: fix unresolved file references (#13488)
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collectors/ebpf.plugin
database
docs/guides/troubleshoot
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@ -8,7 +8,7 @@ sidebar_label: "eBPF"
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# eBPF monitoring with Netdata
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The Netdata Agent provides many [eBPF](https://ebpf.io/what-is-ebpf/) programs to help you troubleshoot and debug how applications interact with the Linux kernel. The `ebpf.plugin` uses [tracepoints, trampoline, and2 kprobes](#data-collection) to collect a wide array of high value data about the host that would otherwise be impossible to capture.
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The Netdata Agent provides many [eBPF](https://ebpf.io/what-is-ebpf/) programs to help you troubleshoot and debug how applications interact with the Linux kernel. The `ebpf.plugin` uses [tracepoints, trampoline, and2 kprobes](#how-netdata-collects-data-using-probes-and-tracepoints) to collect a wide array of high value data about the host that would otherwise be impossible to capture.
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> ❗ eBPF monitoring only works on Linux systems and with specific Linux kernels, including all kernels newer than `4.11.0`, and all kernels on CentOS 7.6 or later. For kernels older than `4.11.0`, improved support is in active development.
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@ -20,8 +20,6 @@ For hands-on configuration and troubleshooting tips see our [tutorial on trouble
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<figcaption>An example of virtual file system (VFS) charts made possible by the eBPF collector plugin.</figcaption>
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</figure>
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<a id="data-collection"> </a>
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## How Netdata collects data using probes and tracepoints
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Netdata uses the following features from the Linux kernel to run eBPF programs:
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@ -38,13 +38,13 @@ The default mode `[db].mode = dbengine` has been designed to scale for longer re
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for parent Agents in the _Parent - Child_ setups
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The other available database modes are designed to minimize resource utilization and should only be considered on
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[Parent - Child](/docs/metrics-storage-management/how-streaming-works) setups at the children side and only when the
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[Parent - Child](/docs/metrics-storage-management/how-streaming-works.mdx) setups at the children side and only when the
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resource constraints are very strict.
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So,
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- On a single node setup, use `[db].mode = dbengine`.
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- On a [Parent - Child](/docs/metrics-storage-management/how-streaming-works) setup, use `[db].mode = dbengine` on the
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- On a [Parent - Child](/docs/metrics-storage-management/how-streaming-works.mdx) setup, use `[db].mode = dbengine` on the
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parent to increase retention, a more resource efficient mode like, `dbengine` with light retention settings, and
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`save`, `ram` or `none` modes for the children to minimize resource utilization.
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@ -64,7 +64,7 @@ Metrics retention is controlled only by the disk space allocated to storing metr
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CPU required by the agent to query longer timeframes.
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Since Netdata Agents usually run on the edge, on production systems, Netdata Agent **parents** should be considered.
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When having a [**parent - child**](/docs/metrics-storage-management/how-streaming-works.md) setup, the child (the
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When having a [**parent - child**](/docs/metrics-storage-management/how-streaming-works.mdx) setup, the child (the
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Netdata Agent running on a production system) delegates all of its functions, including longer metrics retention and
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querying, to the parent node that can dedicate more resources to this task. A single Netdata Agent parent can centralize
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multiple children Netdata Agents (dozens, hundreds, or even thousands depending on its available resources).
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@ -51,7 +51,7 @@ and you must do it manually, using the following steps:
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:::note
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In some cases a simple restart of the Agent can fix the issue.
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Read more about [Starting, Stopping and Restarting the Agent](/docs/configure/start-stop-restart).
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Read more about [Starting, Stopping and Restarting the Agent](/docs/configure/start-stop-restart.md).
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:::
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