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 describes how to create a dashboard for monitoring a single Lambda function. Use the example presented here to create a dashboard that fits your specific needs.

Getting Started

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.

Feel free to reach out to us via our in-app chat or by sending us an email at [email protected].