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Hi Guys, In my company we use wavefront for monitoring. And I'm very big fan of this master piece. I would like to understand how does aggregation work in wavefront. I have telegraf agent in server which sends the upates every minute from influx DB. But in wavefront I have the provision of doing aggregation for an hour or even a day. Does wavefront hit influx DB for getting that info or caches 8 days data so anything from 10 mins to 8 days is actually looked upon in the sort of distributed cache ? Can someone please confirm this. I'm very curious to know this.

I am running following wavefront query to get `SINGLE  VALUE` which is Average over the given time range for which the query is being called. This works fine in the dashboard but it times out when called through the REST API. Can this query be optimized:      mavg(1vw, avg(ts(telegraf.response.times.99.percentile , accountid="123" and env="prod" and myvar!="true”))) I tried with following but does not help mavg(1vw, avg(align(900s, mean, ts(telegraf.response.times.99.percentile , accountid=“123” and env=“prod” and myvar!=“true”))))

I am think of of using wavefront as a key-value store for counters, as it is easily available as charts. However, it would introduce many new keys. I am thinking it might require to delete those keys periodically. For statsD, to delete an existing key, I could just delete the corresponding whisper directory. Is this possible to do in wavefront? If so, which wavefront API can do this work? Or, is introducing new keys (say 2000 per day) not a problem, and they don't need to be deleted? (I read about the pricing, it only charges by rate of writing: https://www.wavefront.com/pricing/ )

I want to setup an alert when a certificate needs to be renewed in my service.  I would like to simply create a warning type alert on the certificate expiration date minus 30 days or so.  I've looked at the query language and what I've come up with is pretty ugly, so I'm trying to see if there is something better. For example, if a certificate expires on June 17, 2019, I could do something like the following: (year("America/Los_Angeles")=2019 and month("America/Los_Angeles")>=5 and day("America/Los_Angeles")>=18) or (year("America/Los_Angeles")=2019 and month("America/Los_Angeles")>=6) I'm hoping there is something better that I could use.

Hi, I'd like to use a new point Tag I've created from a taggify() expression as the input of another ts() expression. https://workday.wavefront.com/u/vRCXnbP9Py Here, I'd like to use the new tag "mypod" as the input to another tag "pod" in the first ts() expression. I've tried using the query as the input but that doesn't seem to work. Any help would be appreciated. Sameer

Is there a function to do frequency (e.g., Fourier) analysis on time series data? I see periodic (every hour) activity spikes on time series data and would like to be able to detect the spikes automatically and alert on them.

Hello.  I have a Single Stat Chart on my dashboard that is labeled with the service name being monitored.  This service runs in three environment and I would like the name to display indicating which environment it is signifying. I created a dashboard variable called "env" and added a list of three environments, (prod, stage, dev) According to the documentation, i should be able to name the chart Service name: ${env} and have it display "Service name: prod", "Service name: stage", etc. Any idea why it doesn't seem to replace the ${} with the value on the chart name or is there a different way to approach? Thanks for any help.