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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

thewfhengineer
by New Contributor III
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AWS SageMaker to the Azure Databricks.

I'm starting a project to migrate our Compliance model - Python code (Pandas-based) from AWS SageMaker to the Azure ecosystem.Source: AWS (SageMaker, Airflow)Target: Azure (Databricks, ADLS)I'm evaluating the high-level approach and would appreciate ...

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BipinDatabricks
by New Contributor
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Using Databricks Sql Statement Execution api

TeamWe have internal chatbot service that will send query to data bricks SQL execution API.Number of queries vary from 50 per minute to 100 per minutes. and we are trying to limit response size by applying limit 10. Basically trying hard to use all o...

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Coffee77
Contributor III
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As a suggestion, you can also think of creating your own API to query directly your tables via JDBC/ODBC connections over a SQL Warehouse. This case, limitations would be only those associated to SQL Warehouses and your API but not the Databricks API...

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ShanQiwei
by New Contributor
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I/F security about using medallion architecture

I’m new to writing requirement definitions, and I’d like to ask a question about interface (I/F) security.My question is:Do I need to define the authentication and security mechanisms (such as OAuth2, Managed Identity, Service Principals, etc.) betwe...

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Coffee77
Contributor III
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I'll try to summarize and go directly to the key points as I see this:- Client to S3  SAS Token or OAUTH 2.0 with Service to Service authentication (preferred)- Databricks to S3  Use Service Principal or Managed Identities (preferred)- Bronze/Silver/...

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Techtic_kush
by New Contributor
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Can’t save results to target table – out-of-memory error

Hi team, I’m processing ~5,000 EMR notes with a Databricks notebook. The job reads from `crc_lakehouse.bronze.emr_notes`, runs SciSpaCy UMLS entity extraction plus a fine-tuned BERT sentiment model per partition, and builds a DataFrame (`df_entities`...

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bianca_unifeye
New Contributor III
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You’re right that the behaviour is weird at first glance (“5k rows on a 64 GB cluster and I blow up on write”), but your stack trace is actually very revealing: this isn’t a classic Delta write / shuffle OOM – it’s SciSpaCy/UMLS falling over when loa...

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mplang
by New Contributor
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DLT x UC x Auto Loader

Now that the Directory Listing Mode of Auto Loader is officially deprecated, is there a solution for using File Notification Mode in a DLT pipeline writing to a UC-managed table? My understanding is that File Notification Mode is only available on si...

Data Engineering
autoloader
dlt
UC
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Raman_Unifeye
Contributor III
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Databricks introduced Managed File Events which completely bypasses the need for the cluster's identity to provision cloud resources, resolving the conflict with the Shared cluster mode.Steps to Implement in DLTEnable File Events on the External Loca...

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Sainath368
by New Contributor III
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Migrating from directory-listing to Autoloader Managed File events

Hi everyone,We are currently migrating from a directory listing-based streaming approach to managed file events in Databricks Auto Loader for processing our data in structured streaming.We have a function that handles structured streaming where we ar...

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Raman_Unifeye
Contributor III
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Yes, for your setup, Databricks Auto Loader will create a separate event queue for each independent stream running with the cloudFiles.useManagedFileEvents = true option.As you are running - 1 stream per table, 1 unique directory per stream and 1 uni...

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StephenDsouza
by New Contributor II
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Error during build process for serving model caused by detectron2

Hi All,Introduction: I am trying to register my model on Databricks so that I can serve it as an endpoint. The packages that I need are "torch", "mlflow", "torchvision", "numpy" and "git+https://github.com/facebookresearch/detectron2.git". For this, ...

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StephenDsouza
New Contributor II
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Found an answer!Basically pip was somehow installed the dependencies from the git repo first and was not following the given order so in order to solve this, I added the libraries for conda to install.``` conda_env = { "channels": [ "defa...

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shashankB
by New Contributor III
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Lakebridge analyzer not able to determine DDL.

 Databricks analyzer does not shows any DDL statement count, I've also tested with just a simple SELECT * query (SELECT *  FROM SCHEMA_NAME.TABLE_NAME;) . Is there any solution for this ?My target was to get a detailed analysis on SnowSQL code. Any h...

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Thompson2345
New Contributor II
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The Lakebridge analyzer counts DDL statements, not regular queries. A simple SELECT * is DML, not DDL, so it won’t show up in the DDL count.To get meaningful results for SnowSQL code analysis:Include actual DDL statements like CREATE TABLE, ALTER TAB...

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anhnnguyen
by Visitor
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Adding maven dependency to ETL pipeline

Hello guys,I'm building ETL pipeline and need to access HANA data lake file system. In order to do that I need to have sap-hdlfs library in compute environment, library is available in maven repository.My job will have multiple notebook task and ETL ...

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szymon_dybczak
Esteemed Contributor III
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Hi @anhnnguyen ,Unfortunately, Scala or Java libraries are not supported in lakeflow declarative pipeline (ETL Pipelines). So you need to use regular job if you want to install maven dependencies.Manage Python dependencies for pipelines | Databricks ...

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EDDatabricks
by Contributor
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Schema Registry certificate auth with Unity Catalog volumes.

Greetings.We currently have a Spark structured streaming job (Scala) retrieving avro data from an Azure Eventhub with a confluent schema registry endpoint (using an Azure Api Management gateway with certificate authentication).Until now the .jks file...

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stbjelcevic
Databricks Employee
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Thanks for the detailed context—here’s a concise, actionable troubleshooting plan tailored to Databricks with Unity Catalog volumes and Avro + Confluent Schema Registry over APIM with mTLS. What’s likely going wrong Based on your description, the ini...

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Sega2
by New Contributor III
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Adding a message to azure service bus

I am trying to send a message to a service bus in azure. But I get following error:ServiceBusError: Handler failed: DefaultAzureCredential failed to retrieve a token from the included credentials.This is the line that fails: credential = DefaultAzure...

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stbjelcevic
Databricks Employee
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It looks like the issue is with the Azure credential chain rather than Service Bus itself; in Databricks notebooks, DefaultAzureCredential won’t succeed unless there’s a valid identity available (env vars, CLI login, managed identity, or a Databricks...

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Miguel_Salas
by New Contributor II
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How Install Pyrfc into AWS Databrick using Volumes

I'm trying to install Pyrfc in a Databricks Cluster (already tried in r5.xlarge, m5.xlarge, and c6gd.xlarge). I'm following these link.https://community.databricks.com/t5/data-engineering/how-can-i-cluster-install-a-c-python-library-pyrfc/td-p/8118Bu...

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stbjelcevic
Databricks Employee
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Thanks for the details. The PyRFC package is a Python binding around the SAP NetWeaver RFC SDK and requires the SAP NW RFC SDK to be present at build/run time; it does not work as a pure Python wheel on Linux without the SDK. The project is archived ...

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HoussemBL
by New Contributor III
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how to add Microsoft Entra ID managed service principal to aws databricks

Hi,I would like to add a Microsoft Entra ID managed service principal to AWS Databricks, but I have noticed that this option does not appear to be available-I am only able to create managed service principals directly within Databricks.For comparison...

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stbjelcevic
Databricks Employee
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You cannot add a Microsoft Entra ID–managed service principal to Databricks on AWS today; AWS workspaces only support Databricks‑managed service principals that you create in the Databricks account/workspace, not service principals federated from Ent...

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nchittampelly
by New Contributor II
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What is the best way to connect Oracle CRM cloud from databricks?

What is the best way to connect Oracle CRM cloud from databricks?

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nchittampelly
New Contributor II
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Oracle CRM on Demand is a Cloud platform not a relational database.Is there any proven solution for this requirement?

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ManojkMohan
by Honored Contributor II
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Resolved! Accessing Databricks data in Salesforce via zero copy

I have uploaded clickstream data as shown belowDo i have to mandatorily share via Delta sharing for values to be exposed in Salesforce ?At the Salesforce end i have confirmed that i have a working connector where i am able to see samples data , but u...

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szymon_dybczak
Esteemed Contributor III
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So, for instance I have catalog called project in databricks free edition. If I would like to assign proper permission for my Service Principal (so that it can see the tables wihtin catalog and can query them) first I need to set 2 preequisite permis...

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