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docs: add note about dpdk and socket availability (#10324)

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Joshua Powers 2021-12-21 15:27:04 -07:00 committed by GitHub
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plugins/inputs/dpdk/README.md
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@ -24,10 +24,11 @@ to discover and test the capabilities of DPDK libraries and to explore the expos
> `DPDK version >= 20.05`. The default configuration include reading common statistics from `/ethdev/stats` that is
> available from `DPDK version >= 20.11`. When using `DPDK 20.05 <= version < DPDK 20.11` it is recommended to disable
> querying `/ethdev/stats` by setting corresponding `exclude_commands` configuration option.
>
> **NOTE:** Since DPDK will most likely run with root privileges, the socket telemetry interface exposed by DPDK
> will also require root access. This means that either access permissions have to be adjusted for socket telemetry
> interface to allow Telegraf to access it, or Telegraf should run with root privileges.
> **NOTE:** The DPDK socket must exist for Telegraf to start successfully. Telegraf will attempt
> to connect to the DPDK socket during the initialization phase.
## Configuration