[pve-devel] Telegraf added in-built Proxmox support - thoughts versus our external metric support?

Alexandre DERUMIER aderumier at odiso.com
Mon Sep 7 15:47:46 CEST 2020


Hi,

>>Anyway, I do not think that we should drop our direct plugins (yet), some
>>people like me, are happy feeding directly to InfluxDB without anything
>>in-between.

me too ;)


I'm not sure, but I think than we send more metrics to influxdb, than we stream through the cluster. 

and the plugin does seem to use /cluster/resources api, but seem to do 1 api request by vm.
(So with a lot of vm, maybe it'll flood the api)


----- Mail original -----
De: "Thomas Lamprecht" <t.lamprecht at proxmox.com>
À: "Proxmox VE development discussion" <pve-devel at lists.proxmox.com>, "Victor Hooi" <victorhooi at yahoo.com>
Envoyé: Lundi 7 Septembre 2020 08:57:31
Objet: Re: [pve-devel] Telegraf added in-built Proxmox support - thoughts versus our external metric support?

Hi, 

On 07.09.20 03:42, Victor Hooi wrote: 
> I know that Proxmox has it's own inbuilt InfluxDB client: 
> 
> https://pve.proxmox.com/wiki/External_Metric_Server 
> 
> However, Telegraf recently added first-party support for Proxmox: 
> 
> https://github.com/influxdata/telegraf/tree/master/plugins/inputs/proxmox 

great! 

> Telegraf lets you output to InfluxDB, Graphite, Prometheus, as well as a 
> bunch of others (Telegraf in-built output clients 
> <https://github.com/influxdata/telegraf/tree/master/plugins/outputs>) 
> 
> What do you think of using the above and contributing to that, instead of 
> maintaining our own Proxmox InfluxDB support? 
> 
> Or are there advantages to maintaining our own code here? 

The pvestatd, which queries statistics periodically, does also the sending 
of said statistics without extra overhead. API request may get, at least 
partially, up to date information with an extra overhead, e.g., if storage 
stats are to be queried too. That could be addressed by providing a pvestatd 
fed cache in /run (fast memory tmpfs) or so and provide access to that over 
the API. 

Anyway, I do not think that we should drop our direct plugins (yet), some 
people like me, are happy feeding directly to InfluxDB without anything 
in-between. 

But, we definitively want to mention this in the documentation and see how 
we can improve integration. 

cheers, 
Thomas 



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