DATA OPS

Honeycomb Monthly Cardinality Cost Report to BigQuery and Email

Each month it snapshots Honeycomb per-column cardinality and event volume into BigQuery for trend analysis.

CategoryData Ops
Enginesim
Difficultyintermediate
Triggerschedule
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerMonthly schedule kicks off export
  • ActionPull per-column cardinality and volume from HoneycombHoneycomb
  • ActionAppend snapshot to BigQuery and compare month-over-monthGoogle BigQueryBigQuery
  • LogicRank columns by cost contribution and growth
  • OutputEmail ranked digest to finance and engineeringGmailGmail

What it does

Once a month this workflow exports a full per-column cardinality and event-volume snapshot from Honeycomb into a BigQuery table, builds a month-over-month comparison against prior snapshots, and emails a digest of the biggest cost-driving high-cardinality columns to finance and engineering stakeholders.

When to use it

Use it when you need an auditable cost-trend record and a recurring report tying Honeycomb event volume back to spend. Good for FinOps reviews and budget planning where someone always asks "is observability cost going up, and why."

How it works

  1. 1A monthly schedule kicks off the export.
  2. 2Pull per-column cardinality and event volume for all datasets from Honeycomb.
  3. 3Append the snapshot to a BigQuery table and run a month-over-month comparison query.
  4. 4Logic ranks columns by cost contribution and growth to find the top offenders.
  5. 5Email the digest with the ranked table and trend chart to finance and engineering leads.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect HoneycombDistributed traces and queries.
  2. 2
    Connect BigQueryDatasets, queries, schemas.
  3. 3
    Connect GmailRead, draft, send, label.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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