Thanks Sean. Unfortunately that's not what I need -- I need the TOTAL rate that SIP messages are being processed across the deployment. So I need to SUM across the nodes. I think your formula gives me the average rate per node?
Mat On 24 June 2016 at 21:17, Sean Beckett <[email protected]> wrote: > It seems that > > SELECT MEAN(value) FROM sipMessages WHERE time > now() -7d GROUP BY > time(1h), tag_message_type > > would return what you want. That will give the average of the "value" > field per hour, per message_type, but across all nodes. If that isn't what > you want, can you clarify why not? > > On Fri, Jun 24, 2016 at 2:57 AM, <[email protected]> wrote: > >> I've hit an issue that I think, sadly, is going to prevent us from >> deploying InfluxDB. The following is an example of this issue, but in >> reality it manifests in different ways in many of our use cases. >> >> I have a set of nodes each reporting the rate at which differnet SIP >> messages are being received (in terms of messages per s) >> >> timestamp | tag_node | tag_message_type | value >> --------------------------------------------------- >> | node1 | INVITE | 1728 >> | node1 | BYE | 1051 >> | node2 | INVITE | 1521 >> | node2 | BYE | 1241 >> >> Each node reports writes these stats to InfluxDB roughly every 5s. >> >> I want to draw charts showing the total rate of different types of SIP >> messages being processed across my deployment, split by message_type. >> >> Ideally I would do this like so: >> >> SELECT sum("value") FROM "sipMessages" WHERE WHERE time > now() - 7d >> GROUP BY time(1h), "tag_message_type" >> >> The problem here is that this sums across different values of node, but >> also sums multiple points within each series. So the number I get returned >> is ~720 times higher than it should be. If I knew that there were always >> going to be exactly 720 measurements in each time interval I could divide >> by 720, but this 720 is only an approximation. [it is also the case that >> using Grafana to draw the graphs this "1h" period changes automatically >> based on the period that I'm graphing over] >> >> What I really need to do is to run an average aggregation within each >> series over each GROUP BY time period (so that for each node / message_type >> combination I have one data point per time period), and then sum the >> results of those aggregations across the different series. >> >> I don't believe this is possibe though, and I can't see any way to work >> around it? >> >> What I don't understand is why this isn't a critical issue for lots of >> users as this seems like a very standard use case. Is there a reason that >> other users are able to avoid this issue? >> >> Would adding this capability (to do per series aggregation within "GROUP >> BY time" intervals) be technically difficult? >> >> -- >> Remember to include the InfluxDB version number with all issue reports >> --- >> You received this message because you are subscribed to the Google Groups >> "InfluxDB" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/influxdb. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/influxdb/c7be9920-759c-49e5-a23f-a4800c18b979%40googlegroups.com >> . >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Sean Beckett > Director of Support and Professional Services > InfluxDB > > -- > Remember to include the InfluxDB version number with all issue reports > --- > You received this message because you are subscribed to a topic in the > Google Groups "InfluxDB" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/influxdb/uXdYy9JA6_E/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/influxdb. > To view this discussion on the web visit > https://groups.google.com/d/msgid/influxdb/CALGqCvPvaBsKuruQ5j1mXtftTo70R7LjYm%2BTNq43QBwCRtzwZA%40mail.gmail.com > <https://groups.google.com/d/msgid/influxdb/CALGqCvPvaBsKuruQ5j1mXtftTo70R7LjYm%2BTNq43QBwCRtzwZA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- Remember to include the InfluxDB version number with all issue reports --- You received this message because you are subscribed to the Google Groups "InfluxDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/influxdb. To view this discussion on the web visit https://groups.google.com/d/msgid/influxdb/CAKyPxTQQsnLyC%3DV_KOJTdRvSA9n1fNtGwm7v63TmH7mScy0YBw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
