# Latest **URL:** https://community.dremio.com/latest.md [Latest](https://community.dremio.com/latest.md) · [Categories](https://community.dremio.com/categories.md) --- ## [stsTagSession error on first query execution - suceeds in second attempt](https://community.dremio.com/t/ststagsession-error-on-first-query-execution-suceeds-in-second-attempt/13393)
**Author:** [@DnyaneshwarD](https://community.dremio.com/u/DnyaneshwarD)\ **Replies:** 5\ **Last updated:** [September 22, 2026, 6:35am UTC](https://community.dremio.com/t/ststagsession-error-on-first-query-execution-suceeds-in-second-attempt/13393 "2026-09-22T06:35:03Z")
Hello there, Since last few days we are getting following error for every table in Dremio when we execute the query first time. Strangely it works fine when executed again: Credential verification failed. arn:aws:sts::… --- ## [Proposal: Export catalog configuration API for Dremio OSS](https://community.dremio.com/t/proposal-export-catalog-configuration-api-for-dremio-oss/13379)
**Author:** [@Godson\_Joseph](https://community.dremio.com/u/Godson_Joseph)\ **Replies:** 2\ **Last updated:** [September 13, 2026, 1:49pm UTC](https://community.dremio.com/t/proposal-export-catalog-configuration-api-for-dremio-oss/13379 "2026-09-13T13:49:39Z")
Hi everyone, I’m interested in contributing to Dremio OSS and wanted to get some feedback before starting work on a new feature. I’d like to propose a read-only API to export the catalog configuration (such as sources,… --- ## [Dremio Cloud (next-gen): privileges not inherited from project level, and GRANT OWNERSHIP on a UDF has no effect](https://community.dremio.com/t/dremio-cloud-next-gen-privileges-not-inherited-from-project-level-and-grant-ownership-on-a-udf-has-no-effect/13387)
**Author:** [@Mauricio\_Macri](https://community.dremio.com/u/Mauricio_Macri)\ **Replies:** 2\ **Last updated:** [September 11, 2026, 2:55pm UTC](https://community.dremio.com/t/dremio-cloud-next-gen-privileges-not-inherited-from-project-level-and-grant-ownership-on-a-udf-has-no-effect/13387 "2026-09-11T14:55:00Z")
Hello everyone, Im having two permission issues on Dremio Cloud (next-gen projects) — I’d like to know if they’re expected behavior or bugs. 1) Privileges don’t cascade down the hierarchy. When I grant full privileges … --- ## [Dremio Cloud (next-gen): User having issues when starting query](https://community.dremio.com/t/dremio-cloud-next-gen-user-having-issues-when-starting-query/13394)
**Author:** [@Mauricio\_Macri](https://community.dremio.com/u/Mauricio_Macri)\ **Replies:** 0\ **Last updated:** [September 11, 2026, 2:40pm UTC](https://community.dremio.com/t/dremio-cloud-next-gen-user-having-issues-when-starting-query/13394 "2026-09-11T14:40:32Z")
Hello! One of our client’s user is having a issue where he, after starting a query, Dremio is giving an unexpected error: The user already tried restarting her computer + accessing Dremio in a anonymous tab in her b… --- ## [Engine starting no more after 08-19-26 updates](https://community.dremio.com/t/engine-starting-no-more-after-08-19-26-updates/13386)
**Author:** [@Rai\_Machado](https://community.dremio.com/u/Rai_Machado)\ **Replies:** 0\ **Last updated:** [August 24, 2026, 1:21pm UTC](https://community.dremio.com/t/engine-starting-no-more-after-08-19-26-updates/13386 "2026-08-24T13:21:04Z")
Hi everyone, I’m using Dremio NextGen on pay as u go mode. After the updates on 08-19-26 my engine didn’t start no more. When i’m trying to preview/run queries, after 5 minutes trying to start the engine dremio returns … --- ## [Correct warehouse value for the Iceberg REST Catalog endpoint on a trial project](https://community.dremio.com/t/correct-warehouse-value-for-the-iceberg-rest-catalog-endpoint-on-a-trial-project/13381)
**Author:** [@LewG777](https://community.dremio.com/u/LewG777)\ **Replies:** 0\ **Last updated:** [August 3, 2026, 9:39pm UTC](https://community.dremio.com/t/correct-warehouse-value-for-the-iceberg-rest-catalog-endpoint-on-a-trial-project/13381 "2026-08-03T21:39:46Z")
Title: Correct warehouse value for the Iceberg REST Catalog endpoint on a trial project Hi all, I’m evaluating Dremio Cloud for connecting a third-party data-governance tool to Open Catalog via the Iceberg REST Catalog… --- ## [Soumitra Dutta-How do I create an Apache Iceberg table in Dremio?](https://community.dremio.com/t/soumitra-dutta-how-do-i-create-an-apache-iceberg-table-in-dremio/13369)
**Author:** [@soumitradutta26](https://community.dremio.com/u/soumitradutta26)\ **Replies:** 1\ **Last updated:** [July 30, 2026, 6:42pm UTC](https://community.dremio.com/t/soumitra-dutta-how-do-i-create-an-apache-iceberg-table-in-dremio/13369 "2026-07-30T18:42:46Z")
Hi Everyone, I am Soumitra Dutta an entrepreneur & photographer from Oxford. I’m getting started with Apache Iceberg in Dremio and would like some advice on the best way to create an Iceberg table. Regards Soumitra Dut… --- ## [JDBC property for flattening complex types to a string?](https://community.dremio.com/t/jdbc-property-for-flattening-complex-types-to-a-string/13359)
**Author:** [@Justin\_Gossett](https://community.dremio.com/u/Justin_Gossett)\ **Replies:** 1\ **Last updated:** [July 30, 2026, 6:32pm UTC](https://community.dremio.com/t/jdbc-property-for-flattening-complex-types-to-a-string/13359 "2026-07-30T18:32:21Z")
For client applications that cannot handle complex types, does there exist a JDBC connection property for Dremio to flatten complex types to a string? --- ## [Dremio Cloud MCP issues - Claude](https://community.dremio.com/t/dremio-cloud-mcp-issues-claude/13366)
**Author:** [@Mauricio\_Macri](https://community.dremio.com/u/Mauricio_Macri)\ **Replies:** 4\ **Last updated:** [July 20, 2026, 4:51pm UTC](https://community.dremio.com/t/dremio-cloud-mcp-issues-claude/13366 "2026-07-20T16:51:27Z")
We are having issues when trying to use the Dremio Cloud MCP integration with Claude. We are following the documentation, step-by-step. When we get to the final step - Login into dremio for the URL Callback and authori… --- ## [Iceberg REST catalog support in oss version?](https://community.dremio.com/t/iceberg-rest-catalog-support-in-oss-version/13358)
**Author:** [@Daniel\_Teixeira](https://community.dremio.com/u/Daniel_Teixeira)\ **Replies:** 2\ **Last updated:** [June 11, 2026, 7:54am UTC](https://community.dremio.com/t/iceberg-rest-catalog-support-in-oss-version/13358 "2026-06-11T07:54:56Z")
Hello, Are there any plans to support REST catalogs in the OSS version? I tried starting the container with plugins.restcatalog.enabled=true, but it didn’t seem to have any effect. Is a new OSS release planned in the … --- ## [SQLFluff - SQL dialect most similar to Dremio?](https://community.dremio.com/t/sqlfluff-sql-dialect-most-similar-to-dremio/13203)
**Author:** [@azur.rosenlov](https://community.dremio.com/u/azur.rosenlov)\ **Replies:** 1\ **Last updated:** [June 9, 2026, 2:21pm UTC](https://community.dremio.com/t/sqlfluff-sql-dialect-most-similar-to-dremio/13203 "2026-06-09T14:21:24Z")
I’m implementing the SQL linter/formatter SQLFluff as part of our CI process. Part of the setup is choosing the SQL dialect for the linting and formatting, which unfortunately at time of writing does not include Dremio. … --- ## [Enabling REST Catalog in Dremio OSS](https://community.dremio.com/t/enabling-rest-catalog-in-dremio-oss/12804)
**Author:** [@scdarius](https://community.dremio.com/u/scdarius)\ **Replies:** 6\ **Last updated:** [June 3, 2026, 7:31am UTC](https://community.dremio.com/t/enabling-rest-catalog-in-dremio-oss/12804 "2026-06-03T07:31:36Z")
I tried enabling the REST catalog in Dremio OSS by setting plugins.restcatalog.enabled: true in dremio.conf, but I am getting an error when starting Dremio - is there something more to this? 2025-02-20 17:10:47,103 \[mai… --- ## [RFC: Elastic executor auto-scaling for Kubernetes deployments](https://community.dremio.com/t/rfc-elastic-executor-auto-scaling-for-kubernetes-deployments/13357)
**Author:** [@Emmanuel\_Davidson](https://community.dremio.com/u/Emmanuel_Davidson)\ **Replies:** 1\ **Last updated:** [May 29, 2026, 8:40pm UTC](https://community.dremio.com/t/rfc-elastic-executor-auto-scaling-for-kubernetes-deployments/13357 "2026-05-29T20:40:03Z")
RFC: Elastic executor auto-scaling for Kubernetes deployments What this does Elastic executor auto-scaling lets a Dremio coordinator dynamically increase Kubernetes executor pods when a query needs more compute. Scale-do… --- ## [Soumitra Dutta Oxford-How do I connect Dremio to S3, MinIO, or AWS Glue?](https://community.dremio.com/t/soumitra-dutta-oxford-how-do-i-connect-dremio-to-s3-minio-or-aws-glue/13345)
**Author:** [@soumitradutta26](https://community.dremio.com/u/soumitradutta26)\ **Replies:** 1\ **Last updated:** [May 22, 2026, 3:28pm UTC](https://community.dremio.com/t/soumitra-dutta-oxford-how-do-i-connect-dremio-to-s3-minio-or-aws-glue/13345 "2026-05-22T15:28:20Z")
Hi everyone, My name is Soumitra Dutta an entrepreneur & photographer. I’m trying to set up a connection in Dremio and wanted to get your input. Has anyone here successfully connected Dremio to AWS S3, MinIO, or AWS Glu… --- ## [Dremio-OSS Docker Versions Update](https://community.dremio.com/t/dremio-oss-docker-versions-update/13346)
**Author:** [@Mauricio\_Macri](https://community.dremio.com/u/Mauricio_Macri)\ **Replies:** 1\ **Last updated:** [May 22, 2026, 12:57pm UTC](https://community.dremio.com/t/dremio-oss-docker-versions-update/13346 "2026-05-22T12:57:40Z")
Hi, Is there any estimate on when newer Dremio OSS versions and their Docker images will be published? The latest tag on Docker Hub for dremio/dremio-oss is 26.0.5, pushed about 8 months ago, while the software release … --- ## [Lightweight monitoring and alerting tool for Dremio](https://community.dremio.com/t/lightweight-monitoring-and-alerting-tool-for-dremio/13352)
**Author:** [@Mark\_Shainman](https://community.dremio.com/u/Mark_Shainman)\ **Replies:** 0\ **Last updated:** [May 19, 2026, 2:49pm UTC](https://community.dremio.com/t/lightweight-monitoring-and-alerting-tool-for-dremio/13352 "2026-05-19T14:49:41Z")
I built a lightweight open source monitoring and alerting tool for the Dremio community. It works with both Dremio Cloud And Dremio Software. V1 is available here: GitHub - dremio-community/dremio-lakehouse-monitor: Rea… --- ## [Addional nodes scaled down very quickly](https://community.dremio.com/t/addional-nodes-scaled-down-very-quickly/13330)
**Author:** [@patrickkooman](https://community.dremio.com/u/patrickkooman)\ **Replies:** 2\ **Last updated:** [May 19, 2026, 9:55am UTC](https://community.dremio.com/t/addional-nodes-scaled-down-very-quickly/13330 "2026-05-19T09:55:55Z")
Hi, Two weeks ago we enabled scaling into a second node because we noticed a 100% peak quite often on our single node. However we are seeing issues with this setup. As you can see in one my uploaded images, scaling dow… --- ## [Soumitra Dutta Oxford-How do I create an Apache Iceberg table correctly in Dremio?](https://community.dremio.com/t/soumitra-dutta-oxford-how-do-i-create-an-apache-iceberg-table-correctly-in-dremio/13351)
**Author:** [@soumitradutta26](https://community.dremio.com/u/soumitradutta26)\ **Replies:** 0\ **Last updated:** [May 19, 2026, 7:26am UTC](https://community.dremio.com/t/soumitra-dutta-oxford-how-do-i-create-an-apache-iceberg-table-correctly-in-dremio/13351 "2026-05-19T07:26:38Z")
Hi Everyone, I am Soumitra Dutta an entrepreneur & photographer from Oxford. I’m trying to create an Apache Iceberg table in Dremio, but I’m not fully sure I’m doing it correctly. I’ve set up my source, but I’m unclear a… --- ## [What is the difference between Arrow Flight SQL JDBC Driver and ADBC JDBC Driver?](https://community.dremio.com/t/what-is-the-difference-between-arrow-flight-sql-jdbc-driver-and-adbc-jdbc-driver/10829)
**Author:** [@domke89](https://community.dremio.com/u/domke89)\ **Replies:** 1\ **Last updated:** [May 6, 2026, 1:11pm UTC](https://community.dremio.com/t/what-is-the-difference-between-arrow-flight-sql-jdbc-driver-and-adbc-jdbc-driver/10829 "2026-05-06T13:11:57Z")
Hello, I’m kind of new to Dremio and Arrow data in general and currently doing some research about connecting to Dremio datasets in Java. I’m reading about these two different JDBC drivers: https://arrow.apache.org/docs… --- ## [Dheeraj Sudan and Meenu Hinduja-How do I debug a failing query in Dremio?](https://community.dremio.com/t/dheeraj-sudan-and-meenu-hinduja-how-do-i-debug-a-failing-query-in-dremio/13340)
**Author:** [@mhindujadheerajsudan](https://community.dremio.com/u/mhindujadheerajsudan)\ **Replies:** 1\ **Last updated:** [May 4, 2026, 9:43pm UTC](https://community.dremio.com/t/dheeraj-sudan-and-meenu-hinduja-how-do-i-debug-a-failing-query-in-dremio/13340 "2026-05-04T21:43:11Z")
Hi everyone, I’m Dheeraj Sudan from the UK. I’m a software developer and also run a business with my wife Meenu Hinduja. I’m trying to debug a failing query in Dremio and was wondering how you usually approach this. Do y… --- ## [Soumitra Dutta Oxford-Why is my SQL query not working in Dremio?](https://community.dremio.com/t/soumitra-dutta-oxford-why-is-my-sql-query-not-working-in-dremio/13338)
**Author:** [@soumitradutta26](https://community.dremio.com/u/soumitradutta26)\ **Replies:** 1\ **Last updated:** [May 4, 2026, 9:41pm UTC](https://community.dremio.com/t/soumitra-dutta-oxford-why-is-my-sql-query-not-working-in-dremio/13338 "2026-05-04T21:41:01Z")
Hi everyone, My name is Soumitra Dutta, an Oxford-based entrepreneur & photographer. I’m running into an issue where my SQL query is not working in Dremio, and I’m not sure what I’m doing wrong. Has anyone faced similar… --- ## [Dremio executor cores configuration](https://community.dremio.com/t/dremio-executor-cores-configuration/13337)
**Author:** [@Hunter](https://community.dremio.com/u/Hunter)\ **Replies:** 1\ **Last updated:** [May 4, 2026, 9:35pm UTC](https://community.dremio.com/t/dremio-executor-cores-configuration/13337 "2026-05-04T21:35:00Z")
is dremio.executor.cores a valid configuration in dremio.conf file in the community version ? --- ## [A JupyterLab 4.x sidebar extension for browsing and querying the Dremio catalog](https://community.dremio.com/t/a-jupyterlab-4-x-sidebar-extension-for-browsing-and-querying-the-dremio-catalog/13343)
**Author:** [@Bliki](https://community.dremio.com/u/Bliki)\ **Replies:** 0\ **Last updated:** [April 28, 2026, 3:49pm UTC](https://community.dremio.com/t/a-jupyterlab-4-x-sidebar-extension-for-browsing-and-querying-the-dremio-catalog/13343 "2026-04-28T15:49:23Z")
For those using JupyterHub and Dremio. This might be something you should try. I don’t provide any support. But have fun exploring. --- ## [Community Connectors](https://community.dremio.com/t/community-connectors/13342)
**Author:** [@Elise](https://community.dremio.com/u/Elise)\ **Replies:** 0\ **Last updated:** [April 28, 2026, 2:20pm UTC](https://community.dremio.com/t/community-connectors/13342 "2026-04-28T14:20:11Z")
We continue to grow the number of community driven projects for Dremio. Some new community connectors, to add to our existing ones are now available, as well UDF’s and the latest version of Transform Studio, v 1.13, wh… --- ## [Option to set roles claim in external token provider](https://community.dremio.com/t/option-to-set-roles-claim-in-external-token-provider/13333)
**Author:** [@felix00](https://community.dremio.com/u/felix00)\ **Replies:** 1\ **Last updated:** [April 22, 2026, 9:39am UTC](https://community.dremio.com/t/option-to-set-roles-claim-in-external-token-provider/13333 "2026-04-22T09:39:58Z")
Hi, when configuring an external token provider in Dremio, there is currently an option to define a User Claim Mapping. During authentication (for example, via Keycloak), the Dremio username is mapped to a specific JWT … --- ## [Share your experience and advise on Dremio Reflection](https://community.dremio.com/t/share-your-experience-and-advise-on-dremio-reflection/13339)
**Author:** [@sbyte](https://community.dremio.com/u/sbyte)\ **Replies:** 0\ **Last updated:** [April 13, 2026, 12:45am UTC](https://community.dremio.com/t/share-your-experience-and-advise-on-dremio-reflection/13339 "2026-04-13T00:45:51Z")
What has been your experience with Reflections, please share. I am trying to find all the Great/ Good/ Not so good/ Bad/ Ugly scenarios. Thanks! --- ## [Tables in Wiki for 19.0.0](https://community.dremio.com/t/tables-in-wiki-for-19-0-0/8646)
**Author:** [@martinocando](https://community.dremio.com/u/martinocando)\ **Replies:** 3\ **Last updated:** [April 9, 2026, 10:02am UTC](https://community.dremio.com/t/tables-in-wiki-for-19-0-0/8646 "2026-04-09T10:02:00Z")
I’ve been searching everywhere but can’t find about adding a table to a VDS wiki catalog. I tried using the standard Wiki markdown, but it doesn’t work. For example, typing this: {| |Orange Apple Bread Pie … --- ## [Deploying Free Trial Dremio on K8s on-prem](https://community.dremio.com/t/deploying-free-trial-dremio-on-k8s-on-prem/13335)
**Author:** [@f.altheneyan](https://community.dremio.com/u/f.altheneyan)\ **Replies:** 2\ **Last updated:** [April 4, 2026, 12:33am UTC](https://community.dremio.com/t/deploying-free-trial-dremio-on-k8s-on-prem/13335 "2026-04-04T00:33:19Z")
Hello team, We are trying to deploy Dremio on K8s (on-prem). According to the docs, we should receive an email that contain the Free Trial License key after registering. However, we haven’t received it yet. After trying… --- ## [Dremio community edition running on Docker engine cannot view files in a S3 compliant object storage bucket](https://community.dremio.com/t/dremio-community-edition-running-on-docker-engine-cannot-view-files-in-a-s3-compliant-object-storage-bucket/13329)
**Author:** [@seemant](https://community.dremio.com/u/seemant)\ **Replies:** 4\ **Last updated:** [March 23, 2026, 4:36pm UTC](https://community.dremio.com/t/dremio-community-edition-running-on-docker-engine-cannot-view-files-in-a-s3-compliant-object-storage-bucket/13329 "2026-03-23T16:36:52Z")
I have installed Dremio community edition on a Docker engine running on a Linux instance. I am trying to connect to S3 compliant object storage bucket. I am able to successfully connect to the bucket but cannot see any … --- ## [Cannot register Iceberg tables in bucket with different region than project](https://community.dremio.com/t/cannot-register-iceberg-tables-in-bucket-with-different-region-than-project/13328)
**Author:** [@Nicolas-Reichel\_SSCS](https://community.dremio.com/u/Nicolas-Reichel_SSCS)\ **Replies:** 2\ **Last updated:** [March 16, 2026, 9:47am UTC](https://community.dremio.com/t/cannot-register-iceberg-tables-in-bucket-with-different-region-than-project/13328 "2026-03-16T09:47:05Z")
I’ve got a project in us-east-1, and an AWS S3 bucket in eu-north-1 as an external data source. I created a table test\_table in eu-north-1 using a CTAS in the GUI as a test (confirming the bucket is reachable by Dremio),… [Next page](https://community.dremio.com/latest.md?page=1)