[rrd-developers] [PATCH] rrdcached "SLURP" for extreme update rates

Tobias Oetiker tobi at oetiker.ch
Thu Oct 2 21:16:30 CEST 2008

Hi Kevin,

Yesterday kevin brintnall wrote:

> This patch introduces a new way to feed updates to 'rrdcached'.  This
> feature is designed for sites with an *EXTREMELY* high update rate.

yes speed, speed, speed.

> A client on a high-privilge control socket may issue the following
> command:
>   ->  SLURP /somewhere/filename
>   <-  0 Processed 6840502 lines, 6840502 entries, 0 failures

iiks ... being able to instruct 'network services' to read in data
from a local file system always sends shivers down my spine. I
would much rather see an extension to the UPDATE command where I
could tell it how may lines I am going to submit. And then proceede
to send the data. This should be similarly fast I guess but the
accessing of the filesystem would be a client responsability.

otoh, what would happen if the normal protocol was enhanced, so
that the client could submit an id with its update command. The
server would then tag its responses with these ids. The client
would then not have to wait for each response, but could match them


Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900

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