Many settings in Metabase can be viewed and modified in the Admin Panel, or set via environment variables. The environment variables always take precedence.
Setting environment variables can be done in various ways depending on how Metabase is being run.
JAR file:
# Mac, Linux and other Unix-based systems
export MB_SITE_NAME="Awesome Company"
# Windows Powershell
$env:MB_SITE_NAME="Awesome Company"
# Windows batch/cmd
set MB_SITE_NAME="Awesome Company"
java -jar metabase.jar
Or set it as Java property, which works the same across all systems:
java -DMB_SITE_NAME="Awesome Company" -jar metabase.jar
Docker:
docker run -d -p 3000:3000 -e MB_SITE_NAME="Awesome Company" --name metabase metabase/metabase
MAX_SESSION_AGEType: integer
Default: 20160
Session expiration, defined in minutes (default is 2 weeks), which will log out users after the defined period and require re-authentication.
Note: This setting is not an idle/inactivity timeout. If you set this to 15 minutes, your users have to login (or re-authenticate) again every 15 minutes.
Use MB_SESSION_COOKIES to also expire sessions, when browser is closed.
Also see the Changing session expiration documentation page.
MB_ADMIN_EMAILType: string
Default: null
The email address users should be referred to if they encounter a problem.
MB_ANON_TRACKING_ENABLEDType: boolean
Default: true
Enable the collection of anonymous usage data in order to help Metabase improve.
MB_API_KEYType: string
Default: null
Middleware that enforces validation of the client via the request header X-Metabase-Apikey. If the header is available, then it’s validated against MB_API_KEY. When it matches, the request continues; otherwise it’s blocked with a 403 Forbidden response.
MB_APPLICATION_COLORSOnly available in Enterprise Edition
Type: string
Default: "{}"
JSON object of primary colors used in charts and throughout Metabase.
MB_APPLICATION_DB_MAX_CONNECTION_POOL_SIZEType: integer
Default: 15
Since: 0.35.0
Maximum number of connections to the Metabase application database.
Change this to a higher value if you notice that regular usage consumes all or close to all connections. When all connections are in use, Metabase might feel slow or unresponsive when clicking around the interface.
To see how many connections are being used, check the Metabase logs and look for lines that contains the following: … App DB connections: 12/15 …. In this example, 12 out of 15 available connections are being used.
See MB_JDBC_DATA_WAREHOUSE_MAX_CONNECTION_POOL_SIZE for setting maximum connections to the databases connected to Metabase.
MB_APPLICATION_FAVICON_URLOnly available in Enterprise Edition
Type: string
Default: "frontend_client/favicon.ico"
Path or URL to favicon file.
MB_APPLICATION_LOGO_URLOnly available in Enterprise Edition
Type: string
Default: "app/assets/img/logo.svg"
Path or URL to logo file. For best results use SVG format.
MB_APPLICATION_NAMEOnly available in Enterprise Edition
Type: string
Default: "Metabase"
Replace the word Metabase wherever it appears with the defined string.
MB_ASYNC_QUERY_THREAD_POOL_SIZEType: integer
Default: 50
Since: 0.35.0
Maximum number of async Jetty threads. If not set, then MB_JETTY_MAXTHREADS will be used, otherwise it will use the default.
MB_BREAKOUT_BIN_WIDTHType: double
Default: 10.0
When using the default binning strategy for a field of type Coordinate (such as Latitude and Longitude), this number will be used as the default bin width (in degrees).
MB_BREAKOUT_BINS_NUMType: integer
Default: 8
When using the default binning strategy and a number of bins is not provided, this number will be used as the default.
MB_CHECK_FOR_UPDATESType: boolean
Default: true
Identify when new versions of Metabase are available.
MB_CLIENTType: string
Default: null
Used to recognize the Mac App client, which then defaults to "OSX".
MB_COLORIZE_LOGSType: boolean
Default: true
Color log lines. When set to false it will disable log line colors. This is disabled on Windows. Related to MB_EMOJI_IN_LOGS.
MB_CUSTOM_FORMATTINGType: string
Default: "{}"
JSON object keyed by type, containing formatting settings.
MB_CUSTOM_GEOJSONType: string
Default: "{}"
JSON object containing information about custom GeoJSON files for use in map visualizations instead of the default US State or World GeoJSON.
MB_DB_AUTOMIGRATEType: boolean
Default: true
When set to false, Metabase will print migrations needed to be done in the application database and exit. Those migrations need to be applied manually. When true, Metabase will automatically make changes to the application database. This is not related to migrating away from H2.
MB_DB_CONNECTION_TIMEOUT_MSType: integer
Default: 5000
Timeout in milliseconds for connecting to the application database.
MB_DB_CONNECTION_URIType: string
Default: null
A JDBC-style connection URI that can be used instead of most of MB_DB_* like MB_DB_HOST. Also used when certain Connection String parameters are required for the connection. The connection type requirement is the same as MB_DB_TYPE.
Example: jdbc:postgresql://db.example.com:port/mydb?user=dbuser&password=dbpassword&ssl=true&sslfactory=org.postgresql.ssl.NonValidatingFactory
MB_DB_DBNAMEType: string
Default: null
The database name of the application database used with MB_DB_HOST.
MB_DB_FILEType: string
Default: "metabase.db"
Location of H2 database file. Should not include the .mv.db (or .h2.db) file extension. Used when MB_DB_TYPE is set to"h2".
Can also be used when migrating away from H2 to specify where the existing data should be read from.
MB_DB_HOSTType: string
Default: null
The host name or IP address of the application database. Used when MB_DB_TYPE is different than "h2".
MB_DB_IN_MEMORYType: boolean
Default: null
Used for testing with MB_DB_FILE.
MB_DB_PASSType: string
Default: null
The password for MB_DB_HOST.
MB_DB_PORTType: integer
Default: null
The port for MB_DB_HOST.
MB_DB_TYPEType: string ("h2", "postgres", "mysql")
Default: "h2"
When "h2", the application database is loaded from MB_DB_FILE, otherwise MB_DB_HOST will be used to define application database.
MB_DB_USERType: string
Default: null
The username for MB_DB_HOST.
MB_DISABLE_SESSION_THROTTLEType: boolean
Default: false
When true, this will disable session throttling. Warning: It is not recommended to disable throttling, since it is a protective measure against brute-force attacks.
Use MB_SOURCE_ADDRESS_HEADER to set the IP address of the remote client from e.g. a reverse-proxy.
MB_EMAIL_FROM_ADDRESSType: string
Default: null
Address you want to use as the sender of emails generated by Metabase, such as pulses or account invitations.
MB_EMAIL_SMTP_HOSTType: string
Default: null
The address of the SMTP server that handles your emails.
MB_EMAIL_SMTP_PASSWORDType: string
Default: null
SMTP password.
MB_EMAIL_SMTP_PORTType: integer
Default: null
The port your SMTP server uses for outgoing emails.
MB_EMAIL_SMTP_SECURITYType: string ("tls", "ssl", "starttls", "none")
Default: "none"
SMTP secure connection protocol.
MB_EMAIL_SMTP_USERNAMEType: string
Default: null
SMTP username.
MB_EMBEDDING_APP_ORIGINOnly available in Enterprise Edition
Type: string
Default: null
URL of origin allowed to embed the full Metabase application.
MB_EMOJI_IN_LOGSType: boolean
Default: true
Emojis on log lines. When set to false it will disable log line emojis. This is disabled on Windows. Related to MB_COLORIZE_LOGS.
MB_ENABLE_EMBEDDINGType: boolean
Default: false
Allow admins to securely embed questions and dashboards within other applications.
MB_ENABLE_NESTED_QUERIESType: boolean
Default: true
Allow using a saved question as the source for other queries.
MB_ENABLE_PASSWORD_LOGINOnly available in Enterprise Edition
Type: boolean
Default: true
Still allow logging in by email and password when SSO login options are enabled.
MB_ENABLE_PUBLIC_SHARINGType: boolean
Default: false
Enable admins to create publicly viewable links (and embedded iframes) for questions and dashboards.
MB_ENABLE_QUERY_CACHINGType: boolean
Default: false
Enabling caching will save the results of queries that take a long time to run.
MB_ENABLE_TEST_ENDPOINTSType: boolean
Default: null
When true, this will enable /api/testing endpoint. Warning: This should never be enabled in production system.
MB_ENABLE_XRAYSType: boolean
Default: true
Allow users to explore data using X-rays.
MB_ENCRYPTION_SECRET_KEYType: string
Default: null
When set, this will encrypt database credentials stored in the application database. Requirement: minimum 16 characters base64-encoded string.
Also see documentation page Encrypting database details at rest.
MB_GOOGLE_AUTH_AUTO_CREATE_ACCOUNTS_DOMAINType: string
Default: null
When set, allows users to automatically create their Metabase account by logging in if their Google account email address is from this domain.
MB_GOOGLE_AUTH_CLIENT_IDType: string
Default: null
Client ID for Google Auth SSO. If this is set, Google Auth is considered to be enabled.
MB_JDBC_DATA_WAREHOUSE_MAX_CONNECTION_POOL_SIZEType: integer
Default: 15
Since: 0.35.0
Maximum number of connections to the data source databases. The maximum is for each database setup in Admin Panel > Databases, not a total for all databases.
Change this to a higher value if you notice that regular usage consumes all or close to all connections. When all connections are in use then Metabase will be slower to return results for queries, since it would have to wait for an available connection before processing the next query in the queue.
See MB_APPLICATION_DB_MAX_CONNECTION_POOL_SIZE for setting maximum connections to the Metabase application database.
MB_JETTY_ASYNC_RESPONSE_TIMEOUTType: integer
Default: 600000
Since: 0.35.0
Timeout of Jetty async threads, defined in milliseconds. The default is 10 minutes. Very few things might reach that timeout, since they return some type of data before, but things like CSV downloads might.
MB_JETTY_DAEMONType: boolean
Default: false
Use daemon threads.
MB_JETTY_HOSTType: string
Default: localhost for JAR, 0.0.0.0 for Docker
Configure a host either as a host name or IP address to identify a specific network interface on which to listen. If set to "0.0.0.0", Metabase listens on all network interfaces. It will listen on the port specified in MB_JETTY_PORT.
MB_JETTY_JOINType: boolean
Default: true
Blocks the thread until server ends.
MB_JETTY_MAXIDLETIMEType: integer
Default: 200000
Maximum idle time for a connection, in milliseconds.
MB_JETTY_MAXQUEUEDType: integer
Default: “FIX ME”
Maximum number of requests to be queued when all threads are busy.
MB_JETTY_MAXTHREADSType: integer
Default: 50
Maximum number of threads.
Change this to a higher value if you notice that regular usage consumes all or close to all threads. When all threads are in use Metabase might feel slow or unresponsive when clicking around the interface.
To see how many threads are being used, check the Metabase logs and look for lines that contain the following: … Jetty threads: 45/50 …, which in this case would indicate 45 out of 50 available threads are being used.
Related MB_ASYNC_QUERY_THREAD_POOL_SIZE.
MB_JETTY_MINTHREADSType: integer
Default: 8
Minimum number of threads.
MB_JETTY_PORTType: integer
Default: 3000
Configure which port to use for HTTP. It will listen on the interface specified in MB_JETTY_HOST.
MB_JETTY_REQUEST_HEADER_SIZEType: integer
Default: 8192
Since: 0.36.0
Maximum size of a request header, in bytes. Increase this value if you are experiencing errors like “Request Header Fields Too Large”.
MB_JETTY_SSLType: boolean
Default: null
When set to true, will enable HTTPS with the options configured in the MB_JETTY_SSL_* variables.
Also see the Customizing Jetty web server documentation page.
MB_JETTY_SSL_KEYSTOREType: string
Default: null
Path to Java KeyStore file.
MB_JETTY_SSL_KEYSTORE_PASSWORDType: string
Default: null
Password for Java KeyStore file.
MB_JETTY_SSL_PORTType: integer
Default: null
Configure which port to use for HTTPS. It will listen on the interface specified in MB_JETTY_HOST.
MB_JETTY_SSL_TRUSTSTOREType: string
Default: null
Path to Java TrustStore file.
MB_JETTY_SSL_TRUSTSTORE_PASSWORDType: string
Default: null
Password for Java TrustStore file.
MB_JWT_ATTRIBUTE_EMAILOnly available in Enterprise Edition
Type: string
Default: "email"
Key to retrieve the JWT user’s email address.
MB_JWT_ATTRIBUTE_FIRSTNAMEOnly available in Enterprise Edition
Type: string
Default: "first_name"
Key to retrieve the JWT user’s first name.
MB_JWT_ATTRIBUTE_GROUPSOnly available in Enterprise Edition
Type: string
Default: "groups"
Key to retrieve the JWT user’s groups.
MB_JWT_ATTRIBUTE_LASTNAMEOnly available in Enterprise Edition
Type: string
Default: "groups"
Key to retrieve the JWT user’s last name.
MB_JWT_ENABLEDOnly available in Enterprise Edition
Type: boolean
Default: false
When set to true, will enable JWT authentication with the options configured in the MB_JWT_* variables.
MB_JWT_GROUP_MAPPINGSOnly available in Enterprise Edition
Type: string
Default: "{}"
JSON object containing JWT to Metabase group mappings. Should be in the form: '{"groupName": [1, 2, 3]}' where keys are JWT groups and values are lists of Metabase groups IDs.
MB_JWT_GROUP_SYNCOnly available in Enterprise Edition
Type: boolean
Default: false
Enable group membership synchronization with JWT.
MB_JWT_IDENTITY_PROVIDER_URIOnly available in Enterprise Edition
Type: string
Default: null
URL of JWT based login page.
MB_JWT_SHARED_SECRETOnly available in Enterprise Edition
Type: string
Default: null
String used to seed the private key used to validate JWT messages.
MB_LANDING_PAGEOnly available in Enterprise Edition
Type: string
Default: ""
Default page to show the user.
MB_LDAP_ATTRIBUTE_EMAILType: string
Default: "mail"
Attribute to use for the user’s email. Usually ‘mail’, ‘email’ or ‘userPrincipalName’.
MB_LDAP_ATTRIBUTE_FIRSTNAMEType: string
Default: "givenName"
Attribute to use for the user’s first name. Usually ‘givenName’.
MB_LDAP_ATTRIBUTE_LASTNAMEType: string
Default: "sn"
Attribute to use for the user’s last name. Usually ‘sn’.
MB_LDAP_BIND_DNType: string
Default: null
The Distinguished Name to bind as (if any). This user will be used to lookup information about other users.
MB_LDAP_ENABLEDType: boolean
Default: false
When set to true, will enable LDAP authentication with the options configured in the MB_LDAP_* variables.
MB_LDAP_GROUP_BASEType: string
Default: null
Search base for groups. Not required if your LDAP directory provides a ‘memberOf’ overlay. (Will be searched recursively.)
MB_LDAP_GROUP_MAPPINGSType: string
Default: "{}"
JSON object containing LDAP to Metabase group mappings.
MB_LDAP_GROUP_SYNCType: boolean
Default: false
Enable group membership synchronization with LDAP.
MB_LDAP_HOSTType: string
Default: null
Server hostname.
MB_LDAP_PASSWORDType: string
Default: null
The password to bind with for the lookup user.
MB_LDAP_PORTType: string
Default: "389"
Server port, usually 389 or 636 if SSL is used.
MB_LDAP_SECURITYType: string
Default: "none"
Use SSL, TLS or plain text.
MB_LDAP_SYNC_USER_ATTRIBUTESOnly available in Enterprise Edition
Type: boolean
Default: true
Sync user attributes when someone logs in via LDAP.
MB_LDAP_SYNC_USER_ATTRIBUTES_BLACKLISTOnly available in Enterprise Edition
Type: string
Default: "userPassword,dn,distinguishedName"
Comma-separated list of user attributes to skip syncing for LDAP users.
MB_LDAP_USER_BASEType: string
Default: null
Search base for users. (Will be searched recursively.)
MB_LDAP_USER_FILTERType: string
Default: "(&(objectClass=inetOrgPerson)(|(uid={login})(mail={login})))"
User lookup filter. The placeholder {login} will be replaced by the user supplied login.
MB_MAP_TILE_SERVER_URLType: string
Default: "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
The map tile server URL template used in map visualizations, for example from OpenStreetMaps or MapBox.
MB_METABOT_ENABLEDType: boolean
Default: false
Enable MetaBot, which lets you search for and view your saved questions directly via Slack.
MB_NS_TRACEType: string
Default: ""
Comma-separated namespaces to trace. WARNING: Could log sensitive information like database passwords.
MB_PASSWORD_COMPLEXITYType: string ("weak", "normal", "strong")
Default: "normal"
Enforce a password complexity rule to increase security for regular logins. This only applies to new users or users that are changing their password. Related MB_PASSWORD_LENGTH
weak requires length of 6 charactersnormal requires at least 1 digit and length of 6 charactersstrong requires at least 2 lowercase and 2 uppercase and 1 digit and 1 symbol and length of 8 characters.MB_PASSWORD_LENGTHType: integer
Default: 6
Set a minimum password length to increase security for regular logins. This only applies to new users or users that are changing their password. Uses the length of MB_PASSWORD_COMPLEXITY if not set.
MB_PLUGINS_DIRType: string
Default: "plugins"
Path of the “plugins” directory, which is used for the Metabase database drivers. The path should be to a writable directory. When using JAR, the default directory is plugins, created in the same location as the JAR file. When using Docker, the default directory is /plugins.
The location is where custom third-party drivers should be added. Then Metabase will load the driver on startup, which can be verified in the log.
MB_PREMIUM_EMBEDDING_TOKENType: string
Default: null
Token for Enterprise Edition and Premium features.
MB_QP_CACHE_BACKENDType: string
Default: "db"
Current cache backend. Dynamically rebindable primarily for test purposes.
MB_QUERY_CACHING_MAX_KBType: integer
Default: 1000
The maximum size of the cache, per saved question, in kilobytes.
MB_QUERY_CACHING_MAX_TTLType: integer
Default: 8640000
The absolute maximum time to keep any cached query results, in seconds. The default value is 100 days in seconds.
MB_QUERY_CACHING_MIN_TTLType: integer
Default: 60
Metabase will cache all saved questions with an average query execution time longer than this many seconds.
MB_QUERY_CACHING_TTL_RATIOType: integer
Default: 10
To determine how long each saved question’s cached result should stick around, we take the query’s average execution time and multiply that by whatever you input here. So if a query takes on average 2 minutes to run, and you input 10 for your multiplier, its cache entry will persist for 20 minutes.
MB_REDIRECT_ALL_REQUESTS_TO_HTTPSType: boolean
Default: false
Since: 0.36.0
Force all traffic to use HTTPS via a redirect, if the site URL is HTTPS. Related MB_SITE_URL
MB_REDSHIFT_FETCH_SIZEType: integer
Default: 5000
Controls the fetch size used for Redshift queries (in PreparedStatement), via the defaultRowFetchSize JDBC URL
parameter.
MB_REPORT_TIMEZONEType: string
Default: null
Connection timezone to use when executing queries. Defaults to system timezone.
MB_SAML_APPLICATION_NAMEOnly available in Enterprise Edition
Type: string
Default: "Metabase"
This application name will be used for requests to the Identity Provider.
MB_SAML_ATTRIBUTE_EMAILOnly available in Enterprise Edition
Type: string
Default: "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"
SAML attribute for the user’s email address.
MB_SAML_ATTRIBUTE_FIRSTNAMEOnly available in Enterprise Edition
Type: string
Default: "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname"
SAML attribute for the user’s first name.
MB_SAML_ATTRIBUTE_GROUPOnly available in Enterprise Edition
Type: string
Default: "member_of"
SAML attribute for group syncing.
MB_SAML_ATTRIBUTE_LASTNAMEOnly available in Enterprise Edition
Type: string
Default: "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname"
SAML attribute for the user’s last name.
MB_SAML_ENABLEDOnly available in Enterprise Edition
Type: boolean
Default: false
When set to true, will enable SAML authentication with the options configured in the MB_SAML_* variables.
MB_SAML_GROUP_MAPPINGSOnly available in Enterprise Edition
Type: string
Default: "{}"
JSON object containing SAML to Metabase group mappings. Should be in the form: '{"groupName": [1, 2, 3]}' where keys are SAML groups and values are lists of Metabase groups IDs.
MB_SAML_GROUP_SYNCOnly available in Enterprise Edition
Type: boolean
Default: false
Enable group membership synchronization with SAML.
MB_SAML_IDENTITY_PROVIDER_CERTIFICATEOnly available in Enterprise Edition
Type: string
Default: null
Encoded certificate for the identity provider, provided as the content, not a file path.
MB_SAML_IDENTITY_PROVIDER_URIOnly available in Enterprise Edition
Type: string
Default: null
This is the URL where your users go to log in to your identity provider. Depending on which IdP you’re using, this usually looks like https://your-org-name.okta.com.
MB_SAML_KEYSTORE_ALIASOnly available in Enterprise Edition
Type: string
Default: "metabase"
Alias for the key that Metabase should use for signing SAML requests.
MB_SAML_KEYSTORE_PASSWORDOnly available in Enterprise Edition
Type: string
Default: "changeit"
Password for opening the KeyStore.
MB_SAML_KEYSTORE_PATHOnly available in Enterprise Edition
Type: string
Default: null
Absolute path to the KeyStore file to use for signing SAML requests.
MB_SEND_NEW_SSO_USER_ADMIN_EMAILOnly available in Enterprise Edition
Type: boolean
Default: true
Send email notifications to users in Admin group, when a new SSO users is created on Metabase.
MB_SESSION_COOKIESType: boolean
Default: null
When set to true, the user login session will expire, when the browser is closed. The user login session will always expire after the amount of time defined in MAX_SESSION_AGE (by default 2 weeks).
Also see the Changing session expiration documentation page.
MB_SETUP_TOKENType: string
Default: null
An UUID token used to signify that an instance has permissions to create the initial User. This is created upon the first launch of Metabase, by the first instance; once used, it is cleared out, never to be used again.
MB_SHOW_HOMEPAGE_DATAType: boolean
Default: null
Hide the “Our data” section from the homepage by setting it to false. Show the section with true, in case it was manually removed.
MB_SHOW_HOMEPAGE_XRAYSType: boolean
Default: null
Hide the X-rays section from the homepage by setting it to false. Show the section with true, in case it was manually removed. Even if set to true, these will be hidden if any dashboards have been pinned in the “Our Analytics” collection.
MB_SITE_LOCALEType: string
Default: "en"
The default language for this Metabase instance. This only applies to emails, Pulses, etc. Users’ browsers will specify the language used in the user interface.
MB_SITE_NAMEType: string
Default: "Metabase"
The name used for this instance of Metabase.
MB_SITE_URLType: string
Default: null
The base URL where users access Metabase, e.g. https://metabase.example.com or https://example.com/metabase.
MB_SITE_UUIDType: string
Default: null
An UUID token used for this instance of Metabase.
MB_SLACK_TOKENType: string
Default: null
Slack API bearer token obtained from https://api.slack.com/web#authentication
MB_SOURCE_ADDRESS_HEADERType: string
Default: X-Forwarded-For
Identify the source of HTTP requests by this header’s value, instead of its remote address. Related to MB_DISABLE_SESSION_THROTTLE.
MB_SSH_HEARTBEAT_INTERVAL_SECType: integer
Default: 180
Controls how often the heartbeats are sent when an SSH tunnel is established (in seconds).
MB_SSL_CERTIFICATE_PUBLIC_KEYType: string
Default: null
Base-64 encoded public key for this sites SSL certificate. Specify this to enable HTTP Public Key Pinning. Using HPKP is no longer recommended. See http://mzl.la/1EnfqBf for more information.
MB_VERSION_INFO_URLType: string
Default: "http://static.metabase.com/version-info.json"
The address used to check for newer versions of Metabase.