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[James Eckersall <question251169@xxxxxxxxxxxxxxxxxxxxx>]

New question #251169 on Graphite:
https://answers.launchpad.net/graphite/+question/251169

Hi,

I'm trying to graph some metrics from a ceph cluster, in particular, the total amount of space.
I'm using a collectd plugin and the data being sent to carbon is in kb.  I want it to be displayed in bytes, so I'm using the scale function to multiply it by 1024.
For some reason, the graph is blank.

The data being returned from the render url is below.

Oddly, I have another metric showing space free (also in kb, also using scale(ceph.num_kb_free,1024) and this one works fine.  The figures from the working metric are around 166 trillion.

Have I reached an upper limit somewhere or is this a bug?

I'm actually using grafana and initially thought it was a bug in grafana, but then I tried the same in the graphite webapp and got the same result.

Hope someone can advise/help.

Thanks

J

[{"target": "scale(ceph.num_kb,1024)", "datapoints": [[319861669232640.0, 1404379140], [319861669232640.0, 1404379200], [319861669232640.0, 1404379260], [319861669232640.0, 1404379320], [319861669232640.0, 1404379380], [319861669232640.0, 1404379440], [319861669232640.0, 1404379500], [319861669232640.0, 1404379560], [319861669232640.0, 1404379620], [319861669232640.0, 1404379680], [319861669232640.0, 1404379740], [319861669232640.0, 1404379800], [319861669232640.0, 1404379860], [319861669232640.0, 1404379920], [319861669232640.0, 1404379980], [319861669232640.0, 1404380040], [319861669232640.0, 1404380100], [319861669232640.0, 1404380160], [319861669232640.0, 1404380220], [319861669232640.0, 1404380280], [319861669232640.0, 1404380340], [319861669232640.0, 1404380400], [319861669232640.0, 1404380460], [319861669232640.0, 1404380520], [319861669232640.0, 1404380580], [319861669232640.0, 1404380640], [319861669232640.0, 1404380700], [319861669232640.0, 1404380760], [319861669232640.0, 1404380820], [319861669232640.0, 1404380880], [319861669232640.0, 1404380940], [319861669232640.0, 1404381000], [319861669232640.0, 1404381060], [319861669232640.0, 1404381120], [319861669232640.0, 1404381180], [319861669232640.0, 1404381240], [319861669232640.0, 1404381300], [319861669232640.0, 1404381360], [319861669232640.0, 1404381420], [319861669232640.0, 1404381480], [319861669232640.0, 1404381540], [319861669232640.0, 1404381600], [319861669232640.0, 1404381660], [319861669232640.0, 1404381720], [319861669232640.0, 1404381780], [319861669232640.0, 1404381840], [319861669232640.0, 1404381900], [319861669232640.0, 1404381960], [319861669232640.0, 1404382020], [319861669232640.0, 1404382080], [319861669232640.0, 1404382140], [319861669232640.0, 1404382200], [319861669232640.0, 1404382260], [319861669232640.0, 1404382320], [319861669232640.0, 1404382380], [319861669232640.0, 1404382440], [319861669232640.0, 1404382500], [319861669232640.0, 1404382560], [319861669232640.0, 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1404400620], [null, 1404400680]]}]

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