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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

BorislavBlagoev
by Valued Contributor III
  • 3606 Views
  • 4 replies
  • 7 kudos

Resolved! Visualization of Structured Streaming in job.

Does Databricks have feature or good pattern to visualize the data from Structured Streaming? Something like display in the notebook.

  • 3606 Views
  • 4 replies
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Latest Reply
BorislavBlagoev
Valued Contributor III
  • 7 kudos

I didn't know about that. Thanks!

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3 More Replies
User16752246002
by Databricks Employee
  • 3255 Views
  • 2 replies
  • 6 kudos

Resolved! New Bill Inmon Book, What are your thoughts?

Have you checked out the new Bill Inmon Book, Building the Data Lakehouse? https://dbricks.co/3uxCXjO What were your thoughts if you read it?

  • 3255 Views
  • 2 replies
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-werners-
Esteemed Contributor III
  • 6 kudos

The quality of the book depends on the audience IMO. For people who have no background in data warehousing it will be interesting to read. For the others the book is too general and descriptive. The 'HOW do you do x' is missing.

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IkramMecheri
by New Contributor II
  • 15451 Views
  • 3 replies
  • 1 kudos

ImportError: No module named 'bs4'

Hi, I would like to do some web scrapping, however I am unable to import the libraries I traditionally use for that task import requests from bs4 import BeautifulSoup

  • 15451 Views
  • 3 replies
  • 1 kudos
Latest Reply
Hayley
Databricks Employee
  • 1 kudos

Did you try `%pip install bs4 `requests is standard in the databricks runtime, so you don't have to install it.

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WillBlock
by Databricks Employee
  • 2695 Views
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  • 2695 Views
  • 2 replies
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BilalAslamDbrx
Databricks Employee
  • 2 kudos

@Werner Stinckens​ you can think about the Databricks Runtime as a contract. It does and will change over time. However, we offer Long Term Support versions of the runtime which offer multi-year support. If you have production jobs, I would definitel...

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Zen
by New Contributor III
  • 6128 Views
  • 4 replies
  • 2 kudos

Resolved! How do I run a scala script from the Terminal

Hello, how do I run a scala script from a Terminal on Databricks - Web Terminal, or from a cell with %sh just doing `scala -nc script.scala` is not working.Thanks,

  • 6128 Views
  • 4 replies
  • 2 kudos
Latest Reply
User16753724663
Databricks Employee
  • 2 kudos

Hi @Zen​ the web terminal is basically used for shell commands only and specific to driver node only.You can install the scala on top of the driver node from web terminal with below command and use it:% sudo apt install scalaPlease let me know if thi...

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FMendez
by New Contributor III
  • 17880 Views
  • 3 replies
  • 6 kudos

Resolved! How can you mount an Azure Data Lake (gen2) using abfss and Shared Key?

I wanted to mount a ADLG2 on databricks and take advantage on the abfss driver which should be better for large analytical workloads (is that even true in the context of DB?).Setting an OAuth is a bit of a pain so I wanted to take the simpler approac...

  • 17880 Views
  • 3 replies
  • 6 kudos
Latest Reply
User16753724663
Databricks Employee
  • 6 kudos

Hi @Fernando Mendez​ ,The below document will help you to mount the ADLS gen2 using abfss:https://docs.databricks.com/data/data-sources/azure/adls-gen2/azure-datalake-gen2-get-started.htmlCould you please check if this helps?

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shan_chandra
by Databricks Employee
  • 7660 Views
  • 1 replies
  • 4 kudos
  • 7660 Views
  • 1 replies
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Latest Reply
shan_chandra
Databricks Employee
  • 4 kudos

Please refer to the below widget example using SQL %sql DROP VIEW IF EXISTS tempTable; CREATE temporary view tempTable AS SELECT 'APPLE' as a UNION ALL SELECT 'ORANGE' as a UNION ALL SELECT 'BANANA' as a; CREATE WIDGET DROPDOWN fruits DEFAULT 'ORAN...

  • 4 kudos
User16789201666
by Databricks Employee
  • 2025 Views
  • 2 replies
  • 0 kudos

What are some guidelines for migrating to DBR 7/Spark 3?

What are some guidelines for migrating to DBR 7/Spark 3?

  • 2025 Views
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Latest Reply
shan_chandra
Databricks Employee
  • 0 kudos

Please refer to the below reference for switching to DBR 7.xWe have extended our DBR 6.4 support until December 2021, DBR 6.4 extended support - Release notes: https://docs.databricks.com/release-notes/runtime/6.4x.htmlMigration guide to DBR 7.x: htt...

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MGH1
by New Contributor III
  • 7531 Views
  • 5 replies
  • 3 kudos

Resolved! how to log the KerasClassifier model in a sklearn pipeline in mlflow?

I have a set of pre-processing stages in a sklearn `Pipeline` and an estimator which is a `KerasClassifier` (`from tensorflow.keras.wrappers.scikit_learn import KerasClassifier`).My overall goal is to tune and log the whole sklearn pipeline in `mlflo...

  • 7531 Views
  • 5 replies
  • 3 kudos
Latest Reply
shan_chandra
Databricks Employee
  • 3 kudos

could you please share the full error stack trace?

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brij
by New Contributor III
  • 9989 Views
  • 7 replies
  • 3 kudos

Resolved! Databricks snowflake dataframe.toPandas() taking more space and time

I have 2 exactly same table(rows and schema). One table recides in AZSQL server data base and other one is in snowflake database. Now we have some existing code which we want to migrate from azsql to snowflake but when we are trying to create a panda...

  • 9989 Views
  • 7 replies
  • 3 kudos
Latest Reply
Anonymous
Not applicable
  • 3 kudos

@Brijan Elwadhi​ - That's wonderful. Thank you for sharing your solution.

  • 3 kudos
6 More Replies
krishnachaitany
by New Contributor II
  • 1688 Views
  • 1 replies
  • 2 kudos

Spot Instances in Azure Databricks

The above screen shot is from AWS Databricks cluster .Similarly, in Azure Databricks - Is there a specific way to determine how many of worker nodes are using spot instances and on-demand instances when it is running/completed a job.Likewise, ...

Compute level spot instances and on demand instances
  • 1688 Views
  • 1 replies
  • 2 kudos
Latest Reply
Anonymous
Not applicable
  • 2 kudos

Hello!My name is Piper and I'm one of the community moderators. Great to meet you, and thanks for your question! Let's see if your peers in the community have an answer to your question first. Or else I will follow up with the team. Thanks for your p...

  • 2 kudos
Databricks2005
by New Contributor II
  • 5865 Views
  • 3 replies
  • 3 kudos

Resolved! Cosine similarity between all rows pairwise on a dataset of 100million rows

Hello everyone,I am facing performance issue while calculating cosine similarity in pyspark on a dataframe with around 100 million records.I am trying to do a cross self join on the dataframe to calculate it.​The executors are all having same number ...

  • 5865 Views
  • 3 replies
  • 3 kudos
Latest Reply
Sonal
New Contributor II
  • 3 kudos

Is there a way to hash the record attributes so that the cartesian join can be avoided? I work on record similarity and fuzzy matching and we do a learning based blocking alorithm which hashes the records into smaller buckets and then the hashes are ...

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Quan
by New Contributor III
  • 27347 Views
  • 8 replies
  • 5 kudos

Resolved! How to properly load Unicode (UTF-8) characters from table over JDBC connection using Simba Spark Driver

Hello all, I'm trying to pull table data from databricks tables that contain foreign language characters in UTF-8 into an ETL tool using a JDBC connection. I'm using the latest Simba Spark JDBC driver available from the Databricks website.The issue i...

  • 27347 Views
  • 8 replies
  • 5 kudos
Latest Reply
Anonymous
Not applicable
  • 5 kudos

Can you try setting UseUnicodeSqlCharacterTypes=1 in the driver, and also make sure 'file.encoding' is set to UTF-8 in jvm and see if the issue still persists?

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Abhendu
by New Contributor II
  • 2375 Views
  • 2 replies
  • 0 kudos

Resolved! CICD Databricks

Hi TeamI was wondering if there is a document or step by step process to promote code in CICD across various environments of code repository (GIT/GITHUB/BitBucket/Gitlab) with DBx support? [Without involving code repository merging capability of the ...

  • 2375 Views
  • 2 replies
  • 0 kudos
Latest Reply
Anonymous
Not applicable
  • 0 kudos

Please refer this related thread on CICD in Databricks https://community.databricks.com/s/question/0D53f00001GHVhMCAX/what-are-some-best-practices-for-cicd

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