[rrd-users] How to Create the rrd that storeor update million of requests per second

[nate]

Kashif Qazi wrote:
>
> Hi All,
>
> I have to store each request data to rrd database. the request granularity
> can be more or less than one million hits per second.
> can rrd support granularity in milli/micro seconds.
> how to create the rrd that can take one million samples per second is this
> possible.

I believe rrdtool has a maximum resolution of 1 update per second per
file. The amount of disk I/O required to do a million samples per second,
even if rrd's format did support it, are pretty astronomical.

What you probably want is some sort of entirely in-memory database,
I'm not sure what product to suggest.

nate