The Google Cloud Storage (GCS) data lake leverages Google Cloud Storage for storing and accessing your data in the GCP infrastructure. It offers state-of-the-art performance and scalability, along with ensuring the security and privacy of your data.

RudderStack lets you configure GCS data lake as a destination to which you can send your event data seamlessly.

Setting user permissions in GCS data lake

To set up GCS data lake as a destination in RudderStack, you will need to create a new user role and grant the required permissions to create schemas and temporary tables.

Creating the role and adding permissions

  1. Go to the Google Cloud IAM Admin console and click on CREATE ROLE.
  2. Then, fill in the details as shown:
Role details
  1. Fill the details and click on ADD PERMISSIONS.
  2. Under Filter permissions by role, select Storage Object Admin and grant the required permissions:
Setting permissions
  1. The permission required to successfully use the GCS data lake destination is shown:
storage.objects.create
storage.object.get
  1. Then, click on CREATE. This will successfully create the role.

Creating the service account and attaching the role

  1. Go to the Service Accounts option in the Google Cloud IAM Admin console.
  2. Then, select the project containing the dataset that you want to use.
  3. Next, click on CREATE SERVICE ACCOUNT.
  4. Fill in the details as shown below and click on CREATE.
Service account details
  1. Then, select the previously created role and click on CONTINUE.
Role details
  1. Finally, click on DONE.

Creating and downloading the JSON key

  1. Click on the three dots under Actions in the service account that you just created and select Manage keys, as shown:
Manage keys option
  1. Click on ADD KEY, followed by Create new key, as shown:
Creating new key
  1. In the resulting pop-up, select JSON and click on CREATE.
Downloading JSON key
  1. Finally, download this JSON file. This file is required while setting up the GCS data lake destination in RudderStack.

Configuring GCS data lake destination in RudderStack

To send event data to GCS data lake, you first need to add it as a destination in RudderStack and connect it to your data source. Once the destination is enabled, events will automatically start flowing to GCS data lake via RudderStack.

To configure GCS data lake as a destination in RudderStack, follow these steps:

  1. In your RudderStack dashboard, set up the data source. Then, select Google Cloud Storage Data Lake from the list of destinations.
  2. Assign a name to your destination and then click on Next.

Connection settings

GCS data lake destination settings in RudderStack GCS data lake destination settings in RudderStack

Enter the following credentials in the Connection Credentials page:

  • GCS Storage Bucket Name: The name of the GCS bucket used to store data before loading it into the GCS data lake.
  • Prefix: If specified, RudderStack will create a folder in the bucket with this prefix and push all the data within that folder. For example, https://storage.googleapis.com/<bucketName>/<prefix>/.
  • Namespace: If specified, all the data for the destination will be pushed to https://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>. If you don't specify a namespace in the settings, RudderStack sets it to the source name, by default.
  • Table Suffix: This optional setting lets you define a custom path under which your table data is stored. For example, if you set this field to rs, your data will be pushed to https://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/<table-name>/rs.
  • Choose time window layout: This option lets you set the timestamp-defined layout structure under which the table data will be stored.
GCS data lake destination settings in RudderStack

For example, if you choose the option Upto Hour (year=YYYY/month=MM/day=DD/hour=HH) and an event called Product Clicked is received at 2022-08-06T17:30:00.000T, then the data will be stored in the following location:

https://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/<table_name>/<table_suffix>/year=2022/month=08/day=06/hour=17/
The default value for this setting is YYYY/MM/DD/HH.
  • Credentials: Enter the content of the downloaded credentials JSON file in this field.
  • Sync Frequency: Specify how often RudderStack should sync the data to your GCS data lake.
  • Sync Starting At: This optional setting lets you specify the particular time of the day (in UTC) when you want RudderStack to sync the data to the data lake.

Finding your data in the GCS data lake

RudderStack converts your events into Parquet files and dumps them into the configured GCS bucket. Before dumping the events, RudderStack groups the files by the event name based on the time (in UTC) they were received.

The folder structure is similar to the following format:

https://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/<tableName>/YYYY/MM/DD/HH

As specified in the Connection settings section above:

  • <prefix> is the GCS prefix used while configuring the GCS data lake destination in RudderStack. If not specified, RudderStack will omit this value.
  • <namespace> is the namespace specified in the destination settings. If not specified, RudderStack sets it to the source name.
  • <tableName> is set to the event name.
  • YYYY, MM, DD, and HH are replaced by the actual time values.
A combination of the `YYYY`, `MM`, `DD`, and `HH` values represents the UTC time.

Use case

Suppose that RudderStack tracks the following two events:

Event NameTimestamp
Product Purchased"2019-10-12T08:40:50.52Z" UTC
Cart Viewed"2019-11-12T09:34:50.52Z" UTC

RudderStack then converts these events into Parquet files and dumps them into the following folders:

Event NameFolder Location
Product Purchasedhttps://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/product_purchased/2019/10/12/08
Cart Viewedhttps://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/cart_viewed/2019/11/12/09

IPs to be allowlisted

To enable network access to RudderStack, you will need to allowlist the following RudderStack IPs:

  • 3.216.35.97
  • 34.198.90.241
  • 54.147.40.62
  • 23.20.96.9
  • 18.214.35.254
  • 35.83.226.133
  • 52.41.61.208
  • 44.227.140.138
  • 54.245.141.180
  • 3.66.99.198
  • 3.64.201.167
If you have your deployment in the EU region, you can allowlist only the following two IPs:
  • 3.66.99.198
  • 3.64.201.167
All the outbound traffic is routed through these RudderStack IPs.

FAQ

What are the files written in the location <namespace>/rudder-warehouse-staging-logs/?

RudderStack collects all the unprocessed data flowing to the warehouse destinations as staging files. It stores these files in the object storage at the location https://storage.googleapis.com/rudder-warehouse-staging-logs/.

Once the staging files are processed, RudderStack separates them by the event name and sends them to the specified destination in the following format:

https://storage.googleapis.com/<bucketName>/<prefix>/rudder-datalake/<namespace>/<tableName>.


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