<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">Thanks for update.</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">Already subscribed to it! :)</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">Cheers,</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">NM</div> <div id="bloop_sign_1385735054642342144"><span style="font-family:helvetica,arial;font-size:13px"></span>-- <br>Nick Maslov<br><span>Sent with <a href="http://airmailapp.com/tracking">Airmail</a></span></div> <br><p style="color:#A0A0A8;">On November 29, 2013 at 12:43:26 PM, Eoghan Glynn (<a href="mailto://eglynn@redhat.com">eglynn@redhat.com</a>) wrote:</p> <blockquote type="cite" class="clean_bq"><span><div><div>
<br>Hi Nick,
<br>
<br>I'm planning to add rate-per-second meters deriving from the
<br>cumulative disk and network meters:
<br>
<br> https://blueprints.launchpad.net/ceilometer/+spec/rates-derived-from-cumulative
<br>
<br>However, the intent is to average these over the polling period,
<br>which typically would be in the range 60s to 600s, and not to
<br>incur the cost of sub-second hypervisor polling.
<br>
<br>Cheers,
<br>Eoghan
<br>
<br>----- Original Message -----
<br>> Hi,
<br>>
<br>> Well, that is the problem exactly - I need to get info every second to track
<br>> traffic bursts, i.e. depth of precision should be on seconds level. So, in
<br>> my case I`ll have to either poll it every second - or approximate it by
<br>> computing an average…
<br>>
<br>> Thanks a lot for your answers!
<br>>
<br>> NM
<br>> --
<br>> Nick Maslov
<br>> Sent with Airmail
<br>>
<br>>
<br>>
<br>> On November 29, 2013 at 11:47:50 AM, Julien Danjou ( julien@danjou.info )
<br>> wrote:
<br>>
<br>>
<br>> On Fri, Nov 29 2013, Nick Maslov wrote:
<br>>
<br>> Hi Nick,
<br>>
<br>> > How do you think, is it a right way to meter such data with ceilometer? I
<br>> > mean, such statistics should be transferred to collector each second, and
<br>> > in
<br>> > case of >1000 VM`s can easily bring down database. How do you think?
<br>>
<br>> You don't _have to_ poll every seconds, you can poll every minute and
<br>> compute an average. That really depends on what precision you need.
<br>>
<br>> You can do the same things with the existing samples provided by
<br>> Ceilometer.
<br>>
<br>> --
<br>> Julien Danjou
<br>> /* Free Software hacker * independent consultant
<br>> http://julien.danjou.info */
<br>>
<br>> - signature.asc, 851 bytes
<br>>
<br>> _______________________________________________
<br>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
<br>> Post to : openstack@lists.openstack.org
<br>> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
<br>>
<br></div></div></span></blockquote></body></html>