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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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Forum Posts

kertsman_nm
by New Contributor
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  • 1 replies
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Trying to use Broadcast to run Presidio distrubuted

Hello,I am currently evaluating using Microsoft's Presidio de-identification libraries for my organization and would like to see if we can take advantage to Sparks broadcast capabilities, but I am getting an error message:"[BROADCAST_VARIABLE_NOT_LOA...

  • 3848 Views
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

You’re encountering the [BROADCAST_VARIABLE_NOT_LOADED] error because Databricks in shared access mode cannot use broadcast variables with non-serializable Python objects (such as your Presidio engines) due to cluster architecture limitations. The cl...

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6502
by New Contributor III
  • 3276 Views
  • 1 replies
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Schema change and OpenSearch

Let me be crystal clear: Schema Change and OpenSeach do not fit well together. However, the data pushed to it are processed and always have the same schema. The problem here is that Spark is reading a CDC feed, which is subject to Schema Change becau...

  • 3276 Views
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Latest Reply
mark_ott
Databricks Employee
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You are encountering a common issue in Databricks Delta Lake streaming when working with Change Data Capture (CDC) feeds: schema evolution, especially with column mapping enabled, is not fully supported automatically in streaming reads—that includes ...

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van45678
by New Contributor
  • 3878 Views
  • 2 replies
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Getting connection reset issue while connecting to a SQL server

Hello All,I am unable to connect to a SQL server instance that is installed in a on-premise network from databricks. I am able to successfully ping the server from the notebook using this command [nc -vz <hostname> <port>]  which means I am able to e...

Data Engineering
Databricks
sqlserver
timeout
  • 3878 Views
  • 2 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

The error you are encountering, "com.microsoft.sqlserver.jdbc.SQLServerException: Connection reset," even after a successful nc (netcat) connection, is a common but nuanced problem when connecting Databricks to an on-premise SQL Server. Although your...

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meghana_tulla
by New Contributor III
  • 2256 Views
  • 1 replies
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Issue: UCX Assessment Installation Error in Databricks Automation Script

Hi I'm experiencing a problem when installing UCX Assessment through an automation script in Databricks. The script fails with this error:13:38:06 WARNING [databricks.labs.ucx.hive_metastore.tables] {listing_tables_0} failed-table-crawl: listing tabl...

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  • 1 replies
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mark_ott
Databricks Employee
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The manual installation of UCX Assessment in Databricks works with the default <ALL> values, but automation scripts that set WORKSPACE_GROUPS="<ALL>" DATABASES="<ALL>" often encounter a SCHEMA_NOT_FOUND error related to 'ALL' not being recognized as ...

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aav331
by New Contributor
  • 150 Views
  • 3 replies
  • 2 kudos

Resolved! Unable to install libraries from requirements.txt in a Serverless Job and spark_python_task

I am running into the following error while trying to deploy a serverless job running a spark_python_task with GIT as the source for the code. The Job was deployed as part of a DAB from a Github Actions Runner.Run failed with error message Library i...

  • 150 Views
  • 3 replies
  • 2 kudos
Latest Reply
Louis_Frolio
Databricks Employee
  • 2 kudos

@aav331 , if you are happy with the result please "Accept as Solution." This will help others who may be in the same boat. Cheers, Louis.

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carlos_tasayco
by Contributor
  • 2444 Views
  • 1 replies
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DATABRICKS CLI SYNC SPECIFIC FILES

Hello,I am struggling with this problem I need to update databricks repo, to only sync some files according to documentation is possible:https://learn.microsoft.com/en-us/azure/databricks/dev-tools/cli/sync-commands#only-sync-specific-filesIn my work...

carlos_tasayco_0-1751310427720.png carlos_tasayco_1-1751310545234.png
  • 2444 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

You are trying to use the --include-from option with your .gitignore file to only sync specific files with the databricks sync command, but you are observing that all files get synced, not just the expected ones. The key issue is how the include/excl...

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hgm251
by New Contributor
  • 121 Views
  • 2 replies
  • 2 kudos

badrequest: cannot create online table is being deprecated. creating new online table is not allowed

Hello!This seems so sudden that we cannot create online tables anymore? Is there a workaround to being able to create online tables temporarily as we need more time to move to synced tables? #online_tables 

  • 121 Views
  • 2 replies
  • 2 kudos
Latest Reply
nayan_wylde
Esteemed Contributor
  • 2 kudos

Yes, the Databricks online tables (legacy) are being deprecated, and after January 15, 2026, you will no longer be able to access or create them.https://docs.databricks.com/aws/en/machine-learning/feature-store/migrate-from-online-tablesHere are few ...

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1 More Replies
Vetrivel
by Contributor
  • 3509 Views
  • 1 replies
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Federate AWS Cloudwatch logs to Databricks Unity Catalog

I am looking to integrate CloudWatch logs with Databricks. Our objective is not to monitor Databricks via CloudWatch, but rather to facilitate access to CloudWatch logs from within Databricks. If anyone has implemented a similar solution, kindly prov...

  • 3509 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

To access CloudWatch logs from within Databricks, you can set up an integration that enables Databricks to fetch, query, and analyze AWS CloudWatch log data directly—without configuring CloudWatch to monitor Databricks clusters. This approach is incr...

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jeremy98
by Honored Contributor
  • 3451 Views
  • 1 replies
  • 1 kudos

Environment set up in serveless notebook task

Hi community,Is there a way to install dependencies inside a notebook task using serveless compute using Databricks Asset Bundle? Is there a way to avoid installing everytime for each serverless task that compose a job the dependencies (or the librar...

  • 3451 Views
  • 1 replies
  • 1 kudos
Latest Reply
mark_ott
Databricks Employee
  • 1 kudos

For Databricks serverless compute jobs using Asset Bundles, custom dependencies (such as Python packages or wheel files) cannot be pre-installed on shared serverless infrastructure across job tasks as you can with traditional job clusters. Instead, d...

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Maser_AZ
by New Contributor II
  • 3869 Views
  • 1 replies
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16.2 (includes Apache Spark 3.5.2, Scala 2.12) cluster in community edition taking long time

16.2 (includes Apache Spark 3.5.2, Scala 2.12) cluster in community edition taking long time to start.I m trying to launch 16.2 DBR but it seems the cluster which is one node is taking long time . Is this a bug in the community edition ?Here is the u...

Data Engineering
Databricks
  • 3869 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

The long startup time for a Databricks Runtime 16.2 (Apache Spark 3.5.2, Scala 2.12) single-node cluster in Databricks Community Edition is a known issue and not unique to your setup. Many users have reported this situation, with some clusters taking...

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Abishrp
by Contributor
  • 3052 Views
  • 1 replies
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Product code of Databricks in AWS CUR report

I need to know what is the productCode of Databricks in CUR report. Whether the productCode is same for all user?

  • 3052 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

In the AWS Cost and Usage Report (CUR), the productCode for Databricks is used to identify costs attributed to Databricks usage within your AWS environment. The value that appears in the lineItem/ProductCode column for Databricks is typically "Databr...

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Nick_Pacey
by New Contributor III
  • 3164 Views
  • 1 replies
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Foreign Catalog error connecting to SQL Server 2008 R2

Hi,Is there a limitation or know issue when creating a foreign catalog to a SQL Server 2008 R2?We are successfully able to connect to this SQL Server through a JDBC connection string.  To make this work, we have to switch the Java encrypt flag to fal...

  • 3164 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

There are known limitations and issues when connecting to SQL Server 2008 R2, particularly around encryption and JDBC settings, which can manifest as errors in federated catalog operations—even though a direct JDBC connection might succeed if the "en...

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Kabil
by New Contributor
  • 3254 Views
  • 1 replies
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useing dlt metadata as runtime parameter

i have started using DLT pipeline, and i have common code which is used by multiple DLT pipeline. now i need to read metadata information like name of the pipeline and start time of the pipeline during run time, but since im using common code and pip...

  • 3254 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

To dynamically access metadata like the pipeline name and start time at runtime in your common code for Delta Live Tables (DLT) pipelines, you should leverage runtime context and built-in metadata features provided by the DLT or related orchestrators...

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TamD
by Contributor
  • 3220 Views
  • 1 replies
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ModuleNotFoundError Importing fuction modules to DLT pipelines

Following best practice, we want to avoid reusing code by putting commonly used transformations into function libraries and then importing and calling those functions where required.We also want to follow Databricks recommendations to use serverless ...

  • 3220 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

You are correctly following Databricks’ recommendation to store shared code in Python files and import them into your notebooks, especially for Delta Live Tables (DLT) pipelines and serverless environments. However, import path issues are common, par...

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cszczotka
by New Contributor III
  • 3370 Views
  • 1 replies
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Delta sharing open issue with access data on storage

Hi, I have configured delta sharing for external consumer in Azure Databricks. Azure Databricks and storage account are in VNET, no public access. The storage account has also disabled account key access and  shared key authorization.I'm running delt...

  • 3370 Views
  • 1 replies
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Latest Reply
mark_ott
Databricks Employee
  • 0 kudos

Delta Sharing in Azure Databricks allows sharing datasets across clouds and with external consumers, but when used in a tightly controlled network environment (private endpoints, no public access, restricted storage account authentication), it behave...

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