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    Support Settings

    Dremio Support provides settings that can be used for diagnostic purposes. These settings are enabled (or disabled) via the Dremio UI: Admin > Cluster > Support

    Support Access

    Support access provides multiple capabilities for communication with Dremio support depending on your role (user or administrator).

    Activate Download query support bundle.

    Client Tools

    Use the Client Tools pane to configure which client application buttons appear on the toolbar for a Dremio project when users view data in a dataset. Users can launch data in a client application by clicking the corresponding toolbar button.

    note:

    Users must have Power BI Desktop October 2019 installed to launch the client directly from Dremio by clicking the toolbar button.

    To enable a client application, toggle Enabled for the application.

    Internal Support Email

    The Internal Support Email setting is used to configure an email address for users to contact for assistance with queries or other questions. When configured an “Email Help” button is added to the Help section on the Jobs page which end users can use for assistance. The email sent also includes a link to the query’s profile that assistance is being requested for.

    Query Support Bundle

    Dremio 12.0.0 provides additional support for YARN-based Dremio deployments. A Dremio administrator must first enable the feature by toggling Download Query Support Bundle on the Support Access page. Dremio users can download the support bundle for any job to which they have access.

    Any Dremio user with support access and permission to view a job can download a query support bundle by clicking the Download Query Support Bundle button on the Job Details page.

    A Dremio administrator must first enable the feature by toggling Download query support bundle on the Support Access page.

    The support bundle includes all logs on the executor node in the following format:

    Support bundle for all logs on executor node 
    <executor hostname>_application_<container id>_<log type>.log.gz

    The bundle includes the following files:

    • server.log.gz
    • server.gc.gz
    • queries.json.gz - Above two files from the coordinator node that planned the query for the day that Dremio ran the query
    • server.out.gz- From the coordinator node that planned the query
    • system_info.json.gz - WLM rules and queues, and support settings
    • query_profile.zip - Full query profile for the query

    note:

    Important: Hadoop-based deployments using self-signed certificates must either import their certificate into the truststore or disable certificate validation.

    To disable certificate validation:

    1. Add provisioning.yarn.nodemanager.certificate-validation.enabled: false to dremio.conf file in the coordinator node.
    2. Restart Dremio.

    Support Keys

    Support keys are used to configure advanced settings in Dremio and control diagnostic data gathered.

    To enable a key:

    1. Click the gear in Dremio’s left navigation bar.
    2. Select Support.
    3. In the field on the right side of the Support Keys section, specify the name of the support key that you want to list and click Show.
    4. Depending on the key, either toggle the key on or specify a value for it.
    5. Click Save to save the changes.
    Support Key Description
    auth.external-token-providers.enabled Enables the use of OAuth tokens from external token providers for single-sign on (SSO) authentication.
    auth.personal-access-token.max_lifetime_days Specifies the expiration period (in days) for new personal access tokens. The default value is 180 days. Values greater than 36525 cause tokens to expire immediately. Changes to this value do not affect existing tokens.
    dremio.deltalake.enabled Enable Delta Lake support by default. This support key is is available from Dremio version 16.1.0.
    dremio.execution.support_unlimited_splits Enables unlimited splits for FileSystem sources. dremio.iceberg.enabled must also be enabled. This support key is available using Dremio v18.0+, but is enabled by default with Dremio v21.0+.
    dremio.iceberg.enabled Enables Dremio’s ability to use and recognize Apache Iceberg tables. dremio.execution.support_unlimited_splits must also be enabled. This support key is available using Dremio v18.0+.
    dremio.jobs.new.ui Enables the new Job and Job Details page UIs. This support key is available using Dremio v18.0+.
    dremio.ui.outside_communication_disabled Disables all exernal communication with Dremio servers. By default Dremio systems send basic information on system health and usage to Dremio in order to better support users and improve product quality. Enabling this support key stops all external communication with Dremio servers.
    exec.non_partitioned_parquet.enable_runtime_filter Enable and disable runtime filtering for non-partitioned columns. Dremio administrators must also enable planner.filter.runtime_filter to enable runtime filtering for non-partitioned columns.
    exec.operator.aggregate.vectorize.use_spilling_operator Enables/disables hash aggregation spilling.
    exec.operator.copier.conditional_sv6_native Requires Dremio v21.0+. Enables/disables the use of Dremio’s native fast field copiers for primitive data types using the HashJoin operator. This is enabled by default.
    exec.operator.copier.sv2_native Requires Dremio v21.0+. Enables/disables the use of Dremio’s native fast field copiers for data types using the SelectionVectorRemover, NLJE, HashJoin, BoostDeltaColumnReader, BoostFilteringColumnReader operator. This is enabled by default.
    exec.operator.copier.sv4_native Requires Dremio v21.0+. Enables/disables the use of Dremio’s native fast field copiers for primitive data types using the NLJE operator. This is enabled by default.
    exec.operator.copier.sv6_native Requires Dremio v21.0+. Enables/disables the use of Dremio’s native fast field copiers for primitive data types using the HashJoin operator. This is enabled by default.
    export.bi.hostname You can use this support key to change the default hostname of the SQL endpoint for generating PBIDS/TDS files in corresponding Microsoft Power BI/Tableau. This support key is is available from Dremio version 13.0.0.
    export.tableau.extra-native-connection-properties Allows you to set the JDBC connection string when exporting a .tds file when SSL is enabled.
    nessie.kvversionstore.maintenance.period_minutes Allows you to set the interval (in minutes) for periodic maintenance of the embedded Nessie kvstore. By default, maintenance is performed every 240 minutes, or every four hours.
    planner.filter.runtime_filter Enable and disable runtime filtering.
    planner.use_rowcount_statistics Provides more accurate statistics when scanning row counts for Hive tables.
    planner.verbose_profile Provides more details on planning steps.
    plugins.jdbc.db2.enabled Provides support for using IBM Db2 databases as data sources.
    reflection.cloud.cache.enabled Improves the performance of queries that use reflections by enabling caching of reflection data on a distributed store in a cloud storage provider. This support key is enabled by default. Set it to false to disable caching.
    results.max.age_in_days Sets your cleanup threshold in days. See Job Results Cleanup for more information.
    store.plugin.show_metadata_validity_checkbox Disable inline metadata retrieval when it is set to true. This support key is is available from Dremio version 16.1.0.
    store.accurate.partition_stats Collects more accurate partition stats automatically as part of a metadata refresh. To avoid slow queries due to the query planner lacking accurate partition information, set this value to true.
    token.temporary.expiration.sec Specifies the lifetime in seconds of the temporary authentication tokens sent with the query parameters for operations that redirect users to a resource, such as generating a job profile, downloading a dataset, and downloading a query support bundle. The default value is 300.
    ui.upload.allow Allows users to upload files to their home spaces. Enabled by default. See Users, Groups, and Roles for more information.
    ui.space.allow-manage Allows users to create and manage spaces. Disabled by default. See Users, Groups, and Roles for more information.