Google Cloud Platform: how to monitor memory usage of VM instances

Question

I have recently performed a migration to Google Cloud Platform, and I really like it.

However I can\'t find a way to monitor the memory usage of the VM intances. As

Answer 1

The agent metrics page may be useful: https://cloud.google.com/monitoring/api/metrics_agent

You'll need to install stackdriver. See: https://app.google.stackdriver.com/?project="your project name"

The stackdriver metrics page will provide some guidance. You will need to change the "project name" (e.g. sinuous-dog-133823) to suit your account:

https://app.google.stackdriver.com/metrics-explorer?project=sinuous-dog-133823&timeSelection={"timeRange":"6h"}&xyChart={"dataSets":[{"timeSeriesFilter":{"filter":"metric.type=\"agent.googleapis.com/memory/bytes_used\" resource.type=\"gce_instance\"","perSeriesAligner":"ALIGN_MEAN","crossSeriesReducer":"REDUCE_NONE","secondaryCrossSeriesReducer":"REDUCE_NONE","minAlignmentPeriod":"60s","groupByFields":[],"unitOverride":"By"},"targetAxis":"Y1","plotType":"LINE"}],"options":{"mode":"COLOR"},"constantLines":[],"timeshiftDuration":"0s","y1Axis":{"label":"y1Axis","scale":"LINEAR"}}&isAutoRefresh=true

This REST call will get you the cpu usage. You will need to modify the parameters to suite your project name (e.g. sinuous-dog-133823) and other params to suit needs.

GET /v3/projects/sinuous-cat-233823/timeSeries?filter=metric.type="agent.googleapis.com/memory/bytes_used" resource.type="gce_instance"& aggregation.crossSeriesReducer=REDUCE_NONE& aggregation.alignmentPeriod=+60s& aggregation.perSeriesAligner=ALIGN_MEAN& secondaryAggregation.crossSeriesReducer=REDUCE_NONE& interval.startTime=2019-03-06T20:40:00Z& interval.endTime=2019-03-07T02:51:00Z& $unique=gc673 HTTP/1.1
Host: content-monitoring.googleapis.com
authorization: Bearer 
cache-control: no-cache
Postman-Token: 039cabab-356e-4ee4-99c4-d9f4685a7bb2