Datastream pricing
This page describes pricing for Datastream. To see the pricing for other products, read the Pricing documentation.
If you pay in a currency other than USD, then the prices listed in your currency on Google Cloud SKUs apply.
Pricing summary
Datastream pricing is based on gigabytes (GBs) processed. Usage is billed in per-byte increments. There are no additional costs for running streams other than data processed, and an idle stream does not incur any cost.
Change data capture (CDC) and backfill
Datastream streams data from a source to a destination by one of two methods:
- Change data capture (CDC): Datastream captures ongoing changes from the source in real time.
- Backfill: Datastream takes a historical snapshot of data that exists in a table.
Each streaming method is charged at a different rate, described in Pricing details.
Pricing details
In this section, you'll see the charges that apply for each streaming method when using Datastream.
To see the costs that you'll incur for using Datastream for a region where Datastream is available, select a region from the drop-down menu below.
Datastream CDC costs are tiered, meaning that as your usage increases, the price per GB decreases. The reduced price applies only to usage within the tier (GBs processed in lower tiers will still be charged based on the cost for that tier). Backfill uses a flat rate, but the first 500 GB each month is free. See a detailed example below.
Contact sales for pricing beyond 10 TB (CDC).
Usage of other Google Cloud resources
In addition to the cost of data processed by Datastream, you're billed for any resources that you use to transfer, store, or process your data, such as:
Pricing example
As an example, consider a stream that processes data from a source with the following characteristics:
| Backfill of data currently in the source | 600 GB |
| Volume of changes in a month (CDC) | 3,000 GB |
| Destination | BigQuery |
| Region | Iowa (us-central1) |
This Datastream stream will perform a one-time backfill of existing data, as well as capture ongoing changes from the source. The data is written directly to BigQuery, so there are no additional charges for ingesting the data in BigQuery.
Datastream pricing would use the following formula:
Backfill charge = (backfill size - 500 GB) * backfill price = (600 - 500) * $0.40 = $40.00
CDC charge = (2,500 GB * $2.00/GB) + (500 GB * $1.50/GB) = $5,000.00 + $750.00 = $5,750.00
Total Datastream charge = Backfill charge + CDC charge = $40.00 + $5,750.00 = $5,790.00
What's next
- Read the Datastream documentation.
- Get started with Datastream.
- Try the Pricing calculator.
- Learn about Datastream solutions and use cases.