Database Monitoring te proporciona una amplia visibilidad de tus bases de datos Microsoft SQL Server mediante la exposición de métricas de consultas, muestras de consultas, explain-plans, estados de bases de datos, conmutaciones por error y eventos.

Sigue los siguientes pasos para habilitar Database Monitoring con tu base de datos:

1. Concede al Agent acceso a la base de datos.
2. Instala y configura el Agent.
3. Instala la integración Cloud SQL.

Antes de empezar

Versiones de SQL Server compatibles

2014, 2016, 2017, 2019, 2022

Supported Agent versions

7.41.0+

Performance impact

The default Agent configuration for Database Monitoring is conservative, but you can adjust settings such as the collection interval and query sampling rate to better suit your needs. For most workloads, the Agent represents less than one percent of query execution time on the database and less than one percent of CPU.

Database Monitoring runs as an integration on top of the base Agent (see benchmarks).

Proxies, load balancers, and connection poolers

The Datadog Agent must connect directly to the host being monitored. The Agent should not connect to the database through a proxy, load balancer, or connection pooler. If the Agent connects to different hosts while it is running (as in the case of failover, load balancing, and so on), the Agent calculates the difference in statistics between two hosts, producing inaccurate metrics.

Data security considerations

Read about how Database Management handles sensitive information for information about what data the Agent collects from your databases and how to ensure it is secure.

Conceder acceso al Agent

El Datadog Agent requiere acceso de sólo lectura al servidor de la base de datos para recopilar estadísticas y consultas.

Crea un usuario datadog en la instancia de Cloud SQL.

Para mantener un acceso de sólo lectura para el Agent, elimina el usuario datadog del CustomerDbRootRole predeterminado. En su lugar, concede únicamente los permisos explícitos requeridos por el Agent.

GRANT VIEW SERVER STATE to datadog as CustomerDbRootRole;
GRANT VIEW ANY DEFINITION to datadog as CustomerDbRootRole;
ALTER SERVER ROLE CustomerDbRootRole DROP member datadog;

Crea el usuario datadog en cada base de datos de aplicaciones adicional:

USE [database_name];
CREATE USER datadog FOR LOGIN datadog;

Esto es necesario porque Google Cloud SQL no permite conceder el permiso CONNECT ANY DATABASE. El Datadog Agent necesita conectarse a cada base de datos para recopilar estadísticas de E/S de archivos específicas de la base de datos.

Instalación y configuración del Agent

Dado que Google Cloud no permite el acceso directo al host, el Datadog Agent debe instalarse en un host distinto donde pueda comunicarse con el host de SQL Server. Existen varias opciones para instalar y ejecutar el Agent.

init_config:
instances:
  - dbm: true
    host: '<HOSTNAME>,<SQL_PORT>'
    username: datadog
    password: '<PASSWORD>'
    connector: adodbapi
    provider: MSOLEDBSQL
    tags:  # Opcional
      - 'service:<CUSTOM_SERVICE>'
      - 'env:<CUSTOM_ENV>'
    # Después de añadir tu proyecto y tu instancia, configura la integración Datadog Google Cloud (GCP) para extraer datos de nube adicionales, como CPU, memoria, etc.
    gcp:
      project_id: '<PROJECT_ID>'
      instance_id: '<INSTANCE_ID>'

connector: adodbapi
adoprovider: MSOLEDBSQL19  # Sustituye por MSOLEDBSQL para las versiones 18 y anteriores

connector: odbc
driver: '{ODBC Driver 18 for SQL Server}'

init_config:
instances:
  - dbm: true
    host: '<HOSTNAME>,<SQL_PORT>'
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    connector: odbc
    driver: '<Driver from the `odbcinst.ini` file>'
    tags:  # Opcional
      - 'service:<CUSTOM_SERVICE>'
      - 'env:<CUSTOM_ENV>'
    # Después de añadir tu proyecto y tu instancia, configura la integración Datadog Google Cloud (GCP) para extraer datos de nube adicionales, como CPU, memoria, etc.
    gcp:
      project_id: '<PROJECT_ID>'
      instance_id: '<INSTANCE_ID>'

export DD_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
export DD_AGENT_VERSION=7.51.0

docker run -e "DD_API_KEY=${DD_API_KEY}" \
  -v /var/run/docker.sock:/var/run/docker.sock:ro \
  -l com.datadoghq.ad.check_names='["sqlserver"]' \
  -l com.datadoghq.ad.init_configs='[{}]' \
  -l com.datadoghq.ad.instances='[{
    "dbm": true,
    "host": "<HOSTNAME>",
    "port": <SQL_PORT>,
    "connector": "odbc",
    "driver": "ODBC Driver 18 for SQL Server",
    "username": "datadog",
    "password": "<PASSWORD>",
    "tags": [
      "service:<CUSTOM_SERVICE>"
      "env:<CUSTOM_ENV>"
    ],
    "gcp": {
      "project_id": "<PROJECT_ID>",
      "instance_id": "<INSTANCE_ID>"
    }
  }]' \
  gcr.io/datadoghq/agent:${DD_AGENT_VERSION}

cluster_check: true  # Asegúrate de incluir este indicador
init_config:
instances:
  - dbm: true
    host: '<HOSTNAME>'
    port: <SQL_PORT>
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    connector: "odbc"
    driver: "ODBC Driver 18 for SQL Server"
    tags:  # Opcional
      - 'service:<CUSTOM_SERVICE>'
      - 'env:<CUSTOM_ENV>'
    # Después de añadir tu proyecto y tu instancia, configura la integración Datadog Google Cloud (GCP) para extraer datos de nube adicionales, como CPU, memoria, etc.
    gcp:
      project_id: '<PROJECT_ID>'
      instance_id: '<INSTANCE_ID>'

apiVersion: v1
kind: Service
metadata:
  name: sqlserver-datadog-check-instances
  annotations:
    ad.datadoghq.com/service.check_names: '["sqlserver"]'
    ad.datadoghq.com/service.init_configs: '[{}]'
    ad.datadoghq.com/service.instances: |
      [
        {
          "dbm": true,
          "host": "<HOSTNAME>",
          "port": <SQL_PORT>,
          "username": "datadog",
          "password": "ENC[datadog_user_database_password]",
          "connector": "odbc",
          "driver": "ODBC Driver 18 for SQL Server",
          "tags": ["service:<CUSTOM_SERVICE>", "env:<CUSTOM_ENV>"],  # Opcional
          "gcp": {
            "project_id": "<PROJECT_ID>",
            "instance_id": "<INSTANCE_ID>"
          }
        }
      ]      
spec:
  ports:
  - port: 1433
    protocol: TCP
    targetPort: 1433
    name: sqlserver

Ejemplo de configuraciones del Agent

Connecting with DSN using the ODBC driver on Linux

1. Locate the odbc.ini and odbcinst.ini files. By default, these are placed in the /etc directory when installing ODBC.

2. Copy the odbc.ini and odbcinst.ini files into the /opt/datadog-agent/embedded/etc folder.

3. Configure your DSN settings as follows:

   odbcinst.ini must provide at least one section header and ODBC driver location.

   Example:

   [ODBC Driver 18 for SQL Server]
   Description=Microsoft ODBC Driver 18 for SQL Server
   Driver=/opt/microsoft/msodbcsql18/lib64/libmsodbcsql-18.3.so.2.1
   UsageCount=1
   

   odbc.ini must provide a section header and a Driver path that matches odbcinst.ini.

   Example:

   [datadog]
   Driver=/opt/microsoft/msodbcsql18/lib64/libmsodbcsql-18.3.so.2.1
   

4. Update the /etc/datadog-agent/conf.d/sqlserver.d/conf.yaml file with your DSN information.

   Example:

   instances:
     - dbm: true
       host: 'localhost,1433'
       username: datadog
       password: 'ENC[datadog_user_database_password]'
       connector: 'odbc'
       driver: '{ODBC Driver 18 for SQL Server}' # This is the section header of odbcinst.ini
       dsn: 'datadog' # This is the section header of odbc.ini
   

5. Restart the Agent.

Using AlwaysOn

Note: For AlwaysOn users, the Agent must be installed on a separate server and connected to the cluster through the listener endpoint. This is because information about Availability Group (AG) secondary replicas is collected from the primary replica. Additionally, installing the Agent in this way helps to keep it up and running in the event of a failover.

instances:
  - dbm: true
    host: 'shopist-prod,1433'
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    include_ao_metrics: true  # If Availability Groups is enabled
    include_fci_metrics: true   # If Failover Clustering is enabled

Monitoring SQL Server Agent Jobs

Note: For monitoring SQL Server Agent jobs, the Datadog Agent must have access to the [msdb] database. Monitoring of SQL Server Agent jobs is supported on SQL Server versions 2016 and newer. Starting from Agent v7.57, the Datadog Agent can collect SQL Server Agent job metrics and histories. To enable this feature, set enabled to true in the agent_jobs section of the SQL Server integration configuration file. The collection_interval and history_row_limit fields are optional.

instances:
  - dbm: true
    host: 'shopist-prod,1433'
    username: datadog
    password: '<PASSWORD>'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    agent_jobs:
      enabled: true
      collection_interval: 15
      history_row_limit: 10000

Collecting schemas

Starting from Agent v7.56, the Datadog Agent can collect schema information from SQLServer databases. To enable this feature, use the schemas_collection option. Schemas are collected on databases for which the Agent has CONNECT access.

Note: For schema collection on RDS instances, it is necessary to grant explicit CONNECT access to the datadog user for each database on the instance. See Grant the Agent access for more details.

Use the database_autodiscovery option to avoid specifying each logical database. See the sample sqlserver.d/conf.yaml for more details.

init_config:
instances:
 # This instance detects every logical database automatically
  - dbm: true
        host: 'shopist-prod,1433'
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    database_autodiscovery:
      enabled: true
    schemas_collection:
      enabled: true
    # Optional: enable metric collection for indexes
    include_index_usage_metrics: true
# This instance only collects schemas and index metrics from the `users` database
  - dbm: true
        host: 'shopist-prod,1433'
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    database: users
    schemas_collection:
      enabled: true
    include_index_usage_metrics: true

One Agent connecting to multiple hosts

It is common to configure a single Agent host to connect to multiple remote database instances (see Agent installation architectures for DBM). To connect to multiple hosts, create an entry for each host in the SQL Server integration config. In these cases, Datadog recommends limiting the number of instances per Agent to a maximum of 10 database instances to guarantee reliable performance.

init_config:
instances:
  - dbm: true
    host: 'example-service-primary.example-host.com,1433'
    username: datadog
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    password: 'ENC[datadog_user_database_password]'
    tags:
      - 'env:prod'
      - 'team:team-discovery'
      - 'service:example-service'
  - dbm: true
    host: 'example-service–replica-1.example-host.com,1433'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    tags:
      - 'env:prod'
      - 'team:team-discovery'
      - 'service:example-service'
  - dbm: true
    host: 'example-service–replica-2.example-host.com,1433'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    tags:
      - 'env:prod'
      - 'team:team-discovery'
      - 'service:example-service'
    [...]

Running custom queries

To collect custom metrics, use the custom_queries option. See the sample sqlserver.d/conf.yaml for more details.

init_config:
instances:
  - dbm: true
    host: 'localhost,1433'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    custom_queries:
    - query: SELECT age, salary, hours_worked, name FROM hr.employees;
      columns:
        - name: custom.employee_age
          type: gauge
        - name: custom.employee_salary
           type: gauge
        - name: custom.employee_hours
           type: count
        - name: name
           type: tag
      tags:
        - 'table:employees'

Working with hosts through a remote proxy

If the Agent must connect to a database host through a remote proxy, all telemetry is tagged with the hostname of the proxy rather than the database instance. Use the reported_hostname option to set a custom override of the hostname detected by the Agent.

init_config:
instances:
  - dbm: true
    host: 'localhost,1433'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    reported_hostname: products-primary
  - dbm: true
    host: 'localhost,1433'
    connector: adodbapi
    adoprovider: MSOLEDBSQL
    username: datadog
    password: 'ENC[datadog_user_database_password]'
    reported_hostname: products-replica-1

Discovering ports automatically

SQL Server Browser Service, Named Instances, and other services can automatically detect port numbers. You can use this instead of hardcoding port numbers in connection strings. To use the Agent with one of these services, set the port field to 0.

For example, a Named Instance config:

init_config:
instances:
  - host: <hostname\instance name>
    port: 0

Instalar la integración Google Cloud SQL

Para recopilar métricas de base de datos más completas de Google Cloud SQL, instala la integración Google Cloud SQL.

Referencias adicionales

Más enlaces, artículos y documentación útiles:

Integración SQL Server básicaDOCUMENTACIÓN