cancel
Showing results for 
Search instead for 
Did you mean: 
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.
cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

ConnorK
by Databricks Partner
  • 23 Views
  • 0 replies
  • 0 kudos

Databricks Standard SharePoint Connector Performance Issues

I've recently started using the Databricks Standard SharePoint connector within my workspace and have run into some significant performance issues.My notebook does a straightforward read using the following:lakeflow_connection_name = 'sharepoint_dev'...

  • 23 Views
  • 0 replies
  • 0 kudos
AlexSantiago
by New Contributor II
  • 18872 Views
  • 26 replies
  • 4 kudos

spotify API get token - raw_input was called, but this frontend does not support input requests.

hello everyone, I'm trying use spotify's api to analyse my music data, but i'm receiving a error during authentication, specifically when I try get the token, above my code.Is it a databricks bug?pip install spotipyfrom spotipy.oauth2 import SpotifyO...

  • 18872 Views
  • 26 replies
  • 4 kudos
Latest Reply
abdullahbinali
  • 4 kudos

To get a Spotify API token, create an app in the Spotify Developer Dashboard  and get your Client ID and Client Secret. Send a POST request to Spotify Accounts API using the Client Credentials Flow to receive an access token.For local services in Jed...

  • 4 kudos
25 More Replies
Nidhig631
by Databricks MVP
  • 218 Views
  • 11 replies
  • 0 kudos

DISTINCT is the major bottleneck because of the heavy shuffle.

Need some advice from the community.I am processing around 100 million records using:df.select(required_cols).distinct().write.saveAsTable(...)The source has 1000+ columns, but I'm selecting only 20 columns before applying DISTINCT.I have already ena...

  • 218 Views
  • 11 replies
  • 0 kudos
Latest Reply
kim533
Visitor
  • 0 kudos

For 100M+ records, `DISTINCT` will almost always be shuffle-heavy because Spark must compare records across partitions. If you truly need exact deduplication on 20 columns, consider using drop Duplicates(required cols instead of distinct the executio...

  • 0 kudos
10 More Replies
A0s01gy
by New Contributor II
  • 69 Views
  • 1 replies
  • 0 kudos

Legacy Modernization Isn’t a Technology Problem

 After working on multiple modernization initiatives, I’ve noticed a pattern:Organizations spend months discussing:Databricks vs SnowflakeSpark vs SQLBatch vs StreamingAirflow vs Managed OrchestrationBut the biggest challenge is usually somewhere els...

  • 69 Views
  • 1 replies
  • 0 kudos
Latest Reply
Yogasathyandrun
New Contributor
  • 0 kudos

I completely agree that teams often underestimate the metadata challenge during modernization.One thing I’ve seen repeatedly, though, is that the hardest part isn’t always the metadata itself—it’s the business intent behind it. We can extract mapping...

  • 0 kudos
Sam500
by New Contributor II
  • 141 Views
  • 4 replies
  • 0 kudos

Databricks Serverless Costs

Our power BI reports consume real-time data , and for that the only option remains is Databricks serverless,but serverrless is expensive option, how to control the costs for serverless , and any other alternatives. Thank you.

  • 141 Views
  • 4 replies
  • 0 kudos
Latest Reply
Yogasathyandrun
New Contributor
  • 0 kudos

Serverless is often the preferred option for Power BI DirectQuery workloads because it starts in seconds and scales automatically. However, it’s not always the only option, and there are several ways to reduce costs.A few high-impact optimizations:Se...

  • 0 kudos
3 More Replies
RGSLCA
by New Contributor II
  • 116 Views
  • 1 replies
  • 0 kudos

Selective overwrite on Partition and Liquid clustered tables

Hi,I have created 2 identical tables but one is partitioned and the one is a Liquid Clustered with Auto Clustering.I inserted 30M rows x 2 (60M) for two dates , date 1 = 2026-06-01 and date = 2026-06-02 , then I overwrite the date 2026-06-02 with a s...

  • 116 Views
  • 1 replies
  • 0 kudos
Latest Reply
balajij8
Contributor III
  • 0 kudos

Hi, the current way is not optimal. You can follow belowINSERT query ran with mostly 43 tasks, creating 43 output files. Since the Liquid clustered table has no organization (clusterBy "[]") - dates are randomly scattered across files.Partition table...

  • 0 kudos
Ramana
by Valued Contributor II
  • 2761 Views
  • 6 replies
  • 4 kudos

Resolved! Serverless Compute - pySpark - Any alternative for rdd.getNumPartitions()

Hello Community,We have been trying to migrate our jobs from Classic Compute to Serverless Compute. As part of this process, we face several challenges, and this is one of them.When we read CSV or JSON files with multiLine=true, the load becomes sing...

  • 2761 Views
  • 6 replies
  • 4 kudos
Latest Reply
Ramana
Valued Contributor II
  • 4 kudos

spark_partition_id is the closest and most performant function available as an alternative, and I migrated to use this function. So far, no issues.https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.spark_p...

  • 4 kudos
5 More Replies
Ramana
by Valued Contributor II
  • 1362 Views
  • 3 replies
  • 0 kudos

Resolved! Serverless Compute - Python - Custom Emails via SMTP (smtplib.SMTP(host_name)) - Any alternative?

Hello Community,We have been trying to migrate our jobs from Classic Compute to Serverless Compute. As part of this process, we face several challenges, and this is one of them.We have several scenarios where we need to send an inline email via Pytho...

  • 1362 Views
  • 3 replies
  • 0 kudos
Latest Reply
Ramana
Valued Contributor II
  • 0 kudos

The solution we implemented as an alternative for email sending from Serverless is via the Microsoft Graph API.https://learn.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0&tabs=python 

  • 0 kudos
2 More Replies
Nick_Hughes
by New Contributor III
  • 17281 Views
  • 4 replies
  • 1 kudos

Best way to generate fake data using underlying schema

HiWe are trying to generate fake data to run our tests. For example, we have a pipeline that creates a gold layer fact table form 6 underlying source tables in our silver layer. We want to generate the data in a way that recognises the relationships ...

  • 17281 Views
  • 4 replies
  • 1 kudos
Latest Reply
muhammedrasin
New Contributor
  • 1 kudos

Hi @Nick_Hughes ,I am very late to the party, but I was digging in the internet to find more people discussing a relatable problem for which I am on my way building a definitive solution, and came across your post from 3 years ago. Times have changed...

  • 1 kudos
3 More Replies
RGSLCA
by New Contributor II
  • 443 Views
  • 7 replies
  • 0 kudos

Sizing Tables and delt logs/CDF

Hi,I need to compare the sizes of my delta tables , what's the correct approach ?Table size reported by analyze  command ? , but how do I check the delta log size , if I enable CDF .. how do I know the CDF log size(the overhead it adds) ? , kind of l...

  • 443 Views
  • 7 replies
  • 0 kudos
Latest Reply
Vikram10
New Contributor II
  • 0 kudos

Hi @RGSLCA DESCRIBE DETAIL is the best starting point if you're comparing Delta table sizes, but it's important to understand what it reports. The sizeInBytes value represents only the latest active snapshot of the table, not the total storage consum...

  • 0 kudos
6 More Replies
nidhin
by New Contributor III
  • 128 Views
  • 2 replies
  • 1 kudos

Lakeflow SDP (DLT) produce external tables, or only UC-managed

As I understand it, streaming tables and materialized views produced by Lakeflow Spark Declarative Pipelines (DLT) are always Unity Catalog managed tables , there's no LOCATION/path option on create_streaming_table or apply_changes.Is that correct? A...

  • 128 Views
  • 2 replies
  • 1 kudos
Latest Reply
Ashwin_DSA
Databricks Employee
  • 1 kudos

Hi @nidhin, What you’re saying is basically correct for a Unity Catalog-enabled Lakeflow Spark Declarative Pipelines setup. In that model, pipelines publish streaming tables and materialized views into the target catalog and schema, the data is store...

  • 1 kudos
1 More Replies
A0s01gy
by New Contributor II
  • 114 Views
  • 0 replies
  • 0 kudos

STTM as a Metadata Contract in Databricks

One pattern I keep seeing in data engineering projects:STTM is treated as documentation.But in reality, STTM can become much more than that.A well-structured Source-to-Target Mapping can act as a metadata contract between business, engineering, QA, a...

  • 114 Views
  • 0 replies
  • 0 kudos
A0s01gy
by New Contributor II
  • 333 Views
  • 2 replies
  • 0 kudos

Resolved! From STTM to Databricks Pipelines: Can Metadata Become the Source Code of Data Engineering?

I’ve been exploring a metadata-driven approach to data engineering through a project called Data Engineering Copilot.The idea is to treat Source-to-Target Mapping (STTM) documents as structured metadata rather than static documentation.Instead of man...

  • 333 Views
  • 2 replies
  • 0 kudos
Latest Reply
rdokala
New Contributor III
  • 0 kudos

This is a good discussion topic, but from my experience right now it is both meta data driven and most traditional excel based STMs.A few observations:How most teams manage STTM todayLevel 1 (Most Common)STTM in Excel, Word, or Confluence.Engineers m...

  • 0 kudos
1 More Replies
Labels