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database_observability.sql_server
EXPERIMENTAL: This is an experimental component. Experimental components are subject to frequent breaking changes, and may be removed with no equivalent replacement. To enable and use an experimental component, you must set the
stability.levelflag toexperimental.
database_observability.sql_server connects to a Microsoft SQL Server instance and collects observability data across every accessible user database on that instance.
The component forwards this data as log entries to Loki receivers and exports targets for Prometheus scraping.
Usage
database_observability.sql_server "<LABEL>" {
data_source_name = <DATA_SOURCE_NAME>
forward_to = [<LOKI_RECEIVERS>]
}Arguments
You can use the following arguments with database_observability.sql_server:
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
data_source_name | secret | Data Source Name for the SQL Server instance to connect to. | yes | |
forward_to | list(LogsReceiver) | Where to forward log entries after processing. | yes | |
targets | list(map(string)) | List of external targets to scrape. | no | |
disable_collectors | list(string) | A list of collectors to disable from the default set. | no | |
enable_collectors | list(string) | A list of collectors to enable on top of the default set. | no | |
exclude_schemas | list(string) | A list of schemas to exclude from monitoring, on top of the always-excluded system schemas sys and information_schema. | ["alloydbadmin", "alloydbmetadata", "azure_maintenance", "azure_sys", "cloudsqladmin", "rdsadmin"] | no |
exclude_databases | list(string) | A list of databases to exclude from monitoring, on top of the always-excluded system databases master, model, msdb, and tempdb. | ["alloydbadmin", "alloydbmetadata", "azure_maintenance", "azure_sys", "cloudsqladmin", "rdsadmin"] | no |
The following collectors are configurable:
| Name | Description | Enabled by default |
|---|---|---|
schema_details | Collect schemas and tables from information_schema. | yes |
query_metrics | Collect per-query executions, errors, and duration counters from Query Store. | yes |
query_details | Collect query text and parsed table names from Query Store. | yes |
Blocks
You can use the following blocks with database_observability.sql_server:
No valid configuration blocks found.
cloud_provider
The cloud_provider block has no attributes.
It contains zero or one of the aws, azure, or gcp blocks.
You use the cloud_provider block to provide information related to the cloud provider that hosts the database under observation.
This information is appended as labels to the collected metrics.
The labels make it easier for you to filter and group your metrics.
When you don’t configure a cloud_provider block, Alloy attempts to detect AWS RDS and Azure SQL hosts from the data_source_name.
aws
The aws block supplies the ARN identifier for the database being monitored.
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
arn | string | The ARN associated with the database under observation. | yes |
azure
The azure block supplies the identifying information for the database being monitored.
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
subscription_id | string | The Subscription ID for your Azure account. | yes | |
resource_group | string | The Resource Group that holds the database resource. | yes | |
server_name | string | The database server name, for example orders-db for the host orders-db.database.windows.net. | no |
gcp
The gcp block supplies the identifying information for the GCP Cloud SQL database being monitored.
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
connection_name | string | The Cloud SQL instance connection name in the format project:region:instance, for example my-project:us-central1:my-db. | yes |
schema_details
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
collect_interval | duration | How frequently to collect information from database. | "1m" | no |
The collector scans every database that the login can access on the instance and collects schema details from each. Only databases where the login has CONNECT access to catalog views are collected.
query_metrics
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
collect_interval | duration | How frequently to collect metrics from Query Store. | "1m" | no |
statements_limit | int | Maximum number of queries to track, ranked by recent duration. | 50 | no |
statements_lookback | duration | Only queries executed within this window are eligible for tracking. | "1h" | no |
The query_metrics collector reads Query Store for the database selected in the data_source_name, not every database on the instance.
Configure the data_source_name to select a user database that has Query Store enabled.
When the connected database is a system database such as master, or Query Store is disabled or read-only, the collector skips collection and remains healthy.
The login requires VIEW DATABASE STATE on the connected database. On SQL Server 2022 and later, VIEW DATABASE PERFORMANCE STATE is also sufficient.
query_details
| Name | Type | Description | Default | Required |
|---|---|---|---|---|
collect_interval | duration | How frequently to collect query text from Query Store. | "1m" | no |
The query_details collector reads Query Store query text for the database selected in the data_source_name, not every database on the instance.
Example
database_observability.sql_server "orders_db" {
data_source_name = "sqlserver://user:pass@server:1433"
forward_to = [loki.write.logs_service.receiver]
}
loki.write "logs_service" {
endpoint {
url = sys.env("<GRAFANA_CLOUD_HOSTED_LOGS_URL>")
basic_auth {
username = sys.env("<GRAFANA_CLOUD_HOSTED_LOGS_ID>")
password = sys.env("<GRAFANA_CLOUD_RW_API_KEY>")
}
}
}Replace the following:
<GRAFANA_CLOUD_HOSTED_LOGS_URL>: The URL for your Grafana Cloud hosted logs.<GRAFANA_CLOUD_HOSTED_LOGS_ID>: The user ID for your Grafana Cloud hosted logs.<GRAFANA_CLOUD_RW_API_KEY>: Your Grafana Cloud API key.
Compatible components
database_observability.sql_server can accept arguments from the following components:
- Components that export Targets
- Components that export Loki
LogsReceiver
database_observability.sql_server has exports that can be consumed by the following components:
- Components that consume Targets
Note
Connecting some components may not be sensible or components may require further configuration to make the connection work correctly. Refer to the linked documentation for more details.
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