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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

Eiki
by New Contributor
  • 1113 Views
  • 1 replies
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How to use the same job cluster in diferents job runs inside the one workflow

I created a Workflow with notebooks and some job runs, but I would to use only one job cluster to run every job runs, without creating a new job cluster for each job run. Because I didn't want to increase the execution time with each new job cluster ...

  • 1113 Views
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Latest Reply
brockb
Databricks Employee
  • 0 kudos

Hi,If I understand correctly, you are hoping to reduce overall job execution time by reducing the Cloud Service Provider instance provisioning time. Is that correct?If so, you may want to consider: Using a Pool of instances: https://docs.databricks.c...

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diego_poggioli
by Contributor
  • 4701 Views
  • 1 replies
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Streaming foreachBatch _jdf jvm attribute not supported

I'm trying to perform a merge inside a streaming foreachbatch using the command: microBatchDF._jdf.sparkSession().sql(self.merge_query)Streaming runs fine if I use a Personal cluster while if I use a Shared cluster streaming fails with the following ...

  • 4701 Views
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holly
Databricks Employee
  • 0 kudos

Can you share what runtime your cluster is using?  This error doesn't surprise me, Unity Catalog Shared clusters have many security limitations, but the list is reducing over time. https://docs.databricks.com/en/compute/access-mode-limitations.html#s...

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nehaa
by New Contributor II
  • 1549 Views
  • 2 replies
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Databricks dashboard publish

How to publish the dashboard created from a notebook? I don't see publish option within the File anymoreWhen referred to the old video they seem to have an option to publish the dashboard  

nehaa_0-1718822255560.png nehaa_2-1718822335195.png
  • 1549 Views
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Walter_C
Databricks Employee
  • 0 kudos

Can you share the link to the video you are referring?As per docs, no publish option is currently available, you can do a Present Dashboard to see it.https://docs.databricks.com/en/notebooks/dashboards.html

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jenitjain
by New Contributor
  • 1227 Views
  • 2 replies
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Certifications questions

What are the timings and days between which we can get certified? Can we purchase a certification at the location or are we supposed to purchase it beforehand?

  • 1227 Views
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Cert-Team
Databricks Employee
  • 0 kudos

Online exams can be purchased and taken anytime. Is this question related to DAIS?

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guangyi
by Contributor III
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How to make a DLT pipeline trigger another pipeline?

For example, I have 2 DLT pipelines, one is used for computing user gender distribution, another is used for compute user location distribution. In the first pipeline, I follow the medallion architecture creating the bronze, silver, gold table one by...

  • 1201 Views
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swathiG
by New Contributor III
  • 6994 Views
  • 7 replies
  • 1 kudos

Databrick IP address

I'm trying to call api in databricks notebook .But while calling  api inside databricks notebook  it is giving error saying "403" forbidden. I think it seems issue with IP address can any one help me to know which IP of databricks need to be whitelis...

swathiG_0-1718859645301.png
  • 6994 Views
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swathiG
New Contributor III
  • 1 kudos

@jacovangelder can you please let me know where can I get compute IP address

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laudhon
by New Contributor II
  • 6020 Views
  • 6 replies
  • 3 kudos

Resolved! Why is My MIN MAX Query Still Slow on a 29TB Delta Table After Liquid Clustering and Optimization?

Hello,I have a large Delta table with a size of 29TB. I implemented Liquid Clustering on this table, but running a simple MIN MAX query on the set cluster column is still extremely slow. I have already optimized the table. Am I missing something in m...

  • 6020 Views
  • 6 replies
  • 3 kudos
Latest Reply
LuisRSanchez
New Contributor III
  • 3 kudos

Hithis operation should take seconds because it use the precomputed statistics for the table. Then few elements to verify:if the data type is datetime or integer should work, if it is string data type then it needs to read all data.verify the column ...

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dat_77
by New Contributor
  • 6522 Views
  • 1 replies
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Change Default Parallelism ?

HII attempted to parallelize my Spark read process by setting the default parallelism using spark.conf.set("spark.default.parallelism", "X"). However, despite setting this configuration, when I checked sc.defaultParallelism in my notebook, it display...

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Latest Reply
irfan_elahi
Databricks Employee
  • 0 kudos

sc.defaultParallelism is based on the number of worker cores in the cluster. It can't be overridden. The reason you are seeing 200 tasks is because of spark.sql.shuffle.partitions (whose default value is 200). This determines the number of shuffle pa...

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Awoke101
by New Contributor III
  • 8091 Views
  • 8 replies
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Resolved! Pandas_UDF not working on shared access mode but works on personal cluster

 The "dense_vector" column does not output on show(). Instead I get the error below. Any idea why it doesn't work on the shared access mode? Any alternatives? from fastembed import TextEmbedding, SparseTextEmbedding from pyspark.sql.pandas.functions ...

Data Engineering
pandas_udf
shared_access
udf
  • 8091 Views
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Latest Reply
jacovangelder
Databricks MVP
  • 0 kudos

For some reason a moderator is removing my pip freeze? no idea why. Maybe too long/spammy for a comment.Anyway, I am using DBR 14.3 LTS with Shared Access Mode. I haven't installed any other version apart from fastembed==0.3.1. Included a screenshot ...

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DavidS1
by New Contributor
  • 1341 Views
  • 1 replies
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Cost comparison of DLT to custom pipeline

Hello, our company currently has a number of custom pipelines written in python for ETL, and I want to do an evaluation of DLT to see if that will make things more efficient.  A problem is that there is a restriction on using DLT "because it is too e...

  • 1341 Views
  • 1 replies
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Zume
New Contributor II
  • 0 kudos

DLT is expensive in my opinion. I tried to run a simple notebook that just reads a parquet file into a dataframe and write it out to a cloud storage and I got an error that i hit my CPU instance limit for my azure subscription. I just gave up after t...

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ksenija
by Contributor
  • 6271 Views
  • 8 replies
  • 1 kudos

DLT pipeline error key not found: user

When I try to create a DLT pipeline from a foreign catalog (BigQuery), I get this error: java.util.NoSuchElementException: key not found: user.I used the same script to copy Salesforce data and that worked completely fine.

  • 6271 Views
  • 8 replies
  • 1 kudos
Latest Reply
ksenija
Contributor
  • 1 kudos

Hi @lucasrocha ,Any luck with this error? I guess it's something with connection to BigQuery, but I didn't find anything.Best regards,Ksenija

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Chinu
by New Contributor III
  • 4524 Views
  • 3 replies
  • 2 kudos

How do I access to DLT advanced configuration from python notebook?

Hi Team, Im trying to get DLT Advanced Configuration value from the python dlt notebook. For example, I set "something": "some path" in Advanced configuration in DLT and I want to get the value from my dlt notebook. I tried "dbutils.widgets.get("some...

  • 4524 Views
  • 3 replies
  • 2 kudos
Latest Reply
Mo
Databricks Employee
  • 2 kudos

here you can find the documentation on how to use parameters in dlt (sql and python): https://docs.databricks.com/en/delta-live-tables/settings.html#parameterize-dataset-declarations-in-python-or-sql

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vanagnostopoulo
by New Contributor III
  • 3261 Views
  • 5 replies
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validate bundle does not work on windows 10 PRO x64

I use the databricks clidatabricks_cli_0.221.1_windows_amd64-signedand when I rundatabricks bundle validatein my project I get"Error: no shell found" In git-bash it works but I have other problems there.

  • 3261 Views
  • 5 replies
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Latest Reply
jacovangelder
Databricks MVP
  • 0 kudos

That's strange. Just checking, are you running it from the right folder? (location of databricks.yml file)? 

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