This setting doesn’t affect drill-throughs or SQL queries. ![]() You can turn this off if querying this database is slow. ![]() Rerun queries for simple exploration: When this is on, Metabase will automatically run queries when users do simple explorations with the Summarize and Filter buttons when viewing a table or chart.Enabling this is usually slower than a direct connection. This option also provides an extra layer of security when a VPN is not available. Use an SSH tunnel: Some database installations can only be accessed by connecting through an SSH bastion host.Settings common to both connection options If you need to use a certificate, connect via the default method and enable Use a secure connection(SSL). Metabase currently does NOT support the following connection string parameters: The Metabase user interface will update with a field to paste your connection string. If you’d prefer to connect to MongoDB using a connection string, click on Paste a connection string. If you don’t know what this means, leave this disabled. If connecting to an Atlas cluster, you might need to enable this option. Use DNS SRV when connecting Using this option requires that provided host is a FQDN.you cannot include a certificate when connecting with a connection string). This option is available for this method of connection only (i.e. Enable SSL and paste the contents of the server’s SSL certificate chain in the input text box. You’ll also have the option to Use a secure connection (SSL). Additional connection string options (optional).The default way to connect to MongoDB is to fill out your connection details in the fields Metabase provides: Using the Metabase fields to input your connection details.There are two ways to connect to MongoDB: Select MongoDB from the dropdown, and enter your desired Display name for this database. Go to Admin -> Databases, and click the Add database button. For more info, check out our troubleshooting guide. And while the sampling does a pretty good job keeping Metabase up to date, it can also mean that new fields can sometimes fall through the cracks, leading to visualization issues, or even fields failing to appear in your results. The reason Metabase only scans a sample of the documents is because scanning every document in every collection on every sync would be put too much strain on your database. This sampling helps Metabase do things like differentiate datetime fields from string fields, and provide people with pre-populated filters. To get a sense of the schema, Metabase will scan the first ten thousand documents of each collection in your MongoDB. How Metabase syncs data in MongoDBīecause MongoDB contains unstructured data, Metabase takes a different approach to syncing your database’s metadata. Metabase supports MongoDB version 4.2 or higher.
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