[Metricbeat] Investigate collection period=1m for googlecloud module

[kaiyan-sheng]

By looking at monitoring metrics on google cloud platform console, they ones I saw all have 1 minute interval. For example:

Also with current code, when period = 5min is set, metrics are collected per minute for 2 or 3 out of the 5 minutes. I would like to see either collecting every minute in each 5-minute instead of partially. Please see kibana snapshot for this:

[elasticmachine]

Pinging @elastic/integrations-platforms (Team:Platforms)

[kaiyan-sheng]

GCP monitoring metrics latency: Sampled every 60 seconds. After sampling, data is not visible for up to 240 seconds.

[exekias]

We had a chat about this and I think we need to change some things. It sounds like we should collect more often but account for the 240 seconds delay when choosing the time range. Also find a way to avoid sending duplicate data