Setting Up Your Lambda Function Metrics Dashboard

Interested in using the Coralogix AWS Lambda Telemetry Exporter v.0.2.0 to collect and send us Lambda function metrics? This tutorial provides two methods for setting up a dashboard for monitoring a single Lambda function:

Import a pre-built dashboard to Granfana (recommended)
Manually create a dashboard that fits your specific needs

Import a Pre-Built Dashboard

STEP 1. Download the attached JSON file.

STEP 2. Import the file to Grafana as a pre-built dashboard.

Create a Dashboard

Use the example presented here to create a dashboard that fits your specific needs.

STEP 1. Create a new Coralogix - Grafana dashboard.

Select Grafana in the upper right-hand menu of your Coralogix dashboard.

Click Dashboard settings

STEP 2. Create a new variable

Select Variables in the left-hand menu > Click Add variable

Create a new variable with the input below > Click update
- Name: faas_name
- Type: Constant
- Value: Input the Lambda function that you wish to monitor. (Using a constant will make it easy to replicate the dashboard for other functions in the future.)

STEP 3. Create panels.

Create an ‘Invocations’ panel. Click Add panel > Add empty panel

Set options:
- Panel options > Title = Invocations
- Legend > Legend mode = Hidden
- Standard options > Unit = requests/sec (rps)
- Standard options > Min = 0
Add queries:
- sum(increase(faas_executions_total{faas_name="$faas_name"}[1m])) OR on() vector(0)
Create a ‘Durations’ panel (per invocation). Click Add panel > Add empty panel
- Set options:
  - Panel options → Title = Durations (per invocation)
  - Standard options → Unit = milliseconds (ms)
  - Standard options → Min = 0
- Add queries:
  - sum(increase(faas_init_duration_ms_sum{faas_name="$faas_name"}[1m])) / sum(increase(faas_invoke_duration_ms_count{faas_name="$faas_name"}[1m])) with Legend = Initialisation duration (averaged over all invocations)
  - sum(increase(faas_restore_duration_ms_sum{faas_name="$faas_name"}[1m])) / sum(increase(faas_invoke_duration_ms_count{faas_name="$faas_name"}[1m])) with Legend = Restoration duration (averaged over all invocations)
  - sum(increase(faas_invoke_duration_ms_sum{faas_name="$faas_name"}[1m])) / sum(increase(faas_invoke_duration_ms_count{faas_name="$faas_name"}[1m])) with Legend = Average invoke duration
  - sum(increase(faas_overhead_duration_ms_sum{cx_subsystem_name="lambda-telemetry-test"}[1m])) / sum(increase(faas_invoke_duration_ms_count{cx_subsystem_name="lambda-telemetry-test"}[1m])) with Legend = Average overhead (runtime after invoke) duration
Create an ‘Errors/Timeouts’ panel. Click Add panel > Add empty panel
- Set options:
  - Panel options > Title = Errors/Timeouts
  - Standard options > Unit = requests/sec (rps)
  - Standard options > Min = 0
- Add queries:
  - sum(increase(faas_errors_total{faas_name="$faas_name"}[1m])) OR on() vector(0) with Label = errors
  - sum(increase(faas_timeouts_total{faas_name="$faas_name"}[1m])) OR on() vector(0) with Label = timeouts
Create a ‘Memory Consumption’ panel. Click Add panel > Add empty panel
- Set options:
  - Panel options > Title = Memory Consumption
  - Standard options > Unit = megabytes
  - Standard options > Min = 0
- Add queries:
  - max(faas_mem_usage_MB{faas_name="$faas_name"}) with Label = maximum memory consumption
  - max(faas_mem_limit_MB{faas_name="$faas_name"}) with Label = available memory
Create a ‘Cold Invocations’ panel. Click Add panel > Add empty panel
- Set options:
  - Panel options > Title = Cold Invocations
  - Standard options > Unit = requests/sec (rps)
  - Standard options > Min = 0
- Add queries:
  - sum(increase(faas_init_duration_ms_count{faas_name="$faas_name"}[1m])) with Label = Cold invocations
  - sum(increase(faas_restore_duration_ms_count{faas_name="$faas_name"}[1m])) with Label = Restorations
Create an ‘Initialization / Restoration Duration’ panel. Click Add panel > Add empty panel
- Set options:
  - Panel options > Title = Initialization / Restoration Duration
  - Standard options > Unit = milliseconds (ms)
  - Standard options > Min = 0
- Add queries:
  - sum(increase(faas_init_duration_ms_sum{faas_name="$faas_name"}[1m])) / sum(increase(faas_init_duration_ms_count{faas_name="$faas_name"}[1m])) with Label = Cold invocations
  - sum(increase(faas_restore_duration_ms_sum{faas_name="$faas_name"}[1m])) / sum(increase(faas_restore_duration_ms_count{faas_name="$faas_name"}[1m])) with Label = Average restoration duration

STEP 4. Organize panels.

Click Add panel > Add new row
Set Title: Cold start
Adjust the panels as displayed in the image below

STEP 5. Enjoy your Lambda Function Dashboard!

Support

Need help?

Our world-class customer success team is available 24/7 to walk you through your setup and answer any questions that may come up.

Contact us via our in-app chat or by emailing [email protected].

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