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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

Agus1
by New Contributor III
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Obtain the source table version number from checkpoint file when using Structured Streaming

Hello!I'm using Structured Streaming to write to a delta table. The source is another delta table written with Structured Streaming as well. In order to datacheck the results I'm attempting to obtain from the checkpoint files of the target table the ...

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Agus1
New Contributor III
  • 0 kudos

Hello @Retired_mod, thank you for your answer.I'm a bit confused here because you seem to be describing the opposite behavior of what I've seen in our checkpoint files.Here I repost my examples to try to understand better.First checkpoint file:{"sour...

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ae20cg
by New Contributor III
  • 3961 Views
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Databricks Cluster Web terminal different permissions with tmux and xterm.

I am launching web terminal on my databricks cluster and when I am using the ephemeral xterm instance I am easily able to navigate to desired directory in `Workspace` and run anything... for example `ls ./` When I switch to tmux so that I can preserv...

  • 3961 Views
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alenka
New Contributor III
  • 9 kudos

Hey there, fellow data explorer pals! I totally get your excitement when launching that web terminal on your Databricks cluster and feeling the power of running commands like 'ls ./' in the ephemeral xterm instance. It's like traversing the vast univ...

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kranthi2
by New Contributor III
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Resolved! alter DLT Materialized View alter column set MASK

I am trying to mask a column on a DLT materialized view - this is created using DLT syntax. I am not able set the column masking after creation. Appreciate any workaround.alter DLT Materialized View alter column set MASK

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kranthi2
New Contributor III
  • 2 kudos

Thank you. I will submit the idea.

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prasadvaze
by Valued Contributor II
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  • 15 replies
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Resolved! How to query delta lake using SQL desktop tools like SSMS or DBVisualizer

Is there a way to use sql desktop tools? because delta OSS or databricks does not provide desktop client (similar to azure data studio) to browse and query delta lake objects.I currently use databricks SQL , a webUI in the databricks workspace but se...

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  • 15 replies
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prasadvaze
Valued Contributor II
  • 12 kudos

DSR is Delta Standalone Reader. see more here - https://docs.delta.io/latest/delta-standalone.htmlIts a crate (and also now a py library) that allows you to connect to delta tables without using spark (e.g. directly from python and not using pyspa...

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oleh_v
by New Contributor
  • 532 Views
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Upload of .bin file >400mb

I try to upload to local workspace folder with .bin extension.It is required to have it locally.I tried load from DBFS, but loading files over 265mb is not allowed with cluster. I tried to upload manually but failed with same error "OSError: [Errno5]...

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Kartheek_Katta
New Contributor II
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Hello Slash,Thank you for your response. I'm encountering the same issue as described. I tried running the provided code in my Databricks workspace, but I received an error. My question is how the script is expected to access local files, especially ...

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Meghana_Vasavad
by New Contributor III
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Resolved! Discrepancies in Data Engineering GitHub Repositories and Errors in Databricks Notebooks

Hi team,I am writing to express my concerns regarding the recent Databricks webinar on "Data Intelligence with Databricks". During the session, there was mention of two GitHub repositories associated with the notebooks being used as mentioned below.1...

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Sujitha
Databricks Employee
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Hi @Meghana_Vasavad could you please file a ticket with Databricks SupportThey will help you with this request. 

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raghu2
by New Contributor III
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Resolved! Error deploying a DAB

I followed steps listed in this article.After creating and validation of bundle with default template, during deployment using this command:databricks bundle deploy -t dev --profile zzI get this message:Building mySecPrj...Error: build failed mySecPr...

  • 2987 Views
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ADB0513
New Contributor III
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@daniel_sahal I am receiving the same error and tried your solution and am still getting the invalid command bdist_wheel.  Any other suggestions?  Thanks

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brickster_2018
by Databricks Employee
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Hugh_Ku
New Contributor II
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I've also run into the same issue, customised docker image does not give DATABRICKS_RUNTIME_VERSION as env. I believe there are still many issues in how customised docker image is used in databricks cluster.Can anyone from databricks help answer it?

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varshini_reddy
by New Contributor III
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Databricks UC enabled but Lineage not found for one table

Databricks UC enabled but Lineage not found for one table whereas i can see the lineage for the other two, any idea on why is it?. Im performing few transformations to bronze data , taking good_data_transformed as a dataframe, creating a temp view fo...

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filipniziol
Contributor III
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It is because of using temp view. To debug further you would need to write all the source tables, transformations, target tables, actual lineage and expected lineage, but as a rule of thumb if the lineage is lost when using temp view.Lineage is captu...

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karolinalbinsso
by New Contributor II
  • 3097 Views
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Resolved! How to access the job-Scheduling Date from within the notebook?

I have created a job that contains a notebook that reads a file from Azure Storage. The file-name contains the date of when the file was transferred to the storage. A new file arrives every Monday, and the read-job is scheduled to run every Monday. I...

  • 3097 Views
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Hubert-Dudek
Esteemed Contributor III
  • 3 kudos

Hi, I guess the files are in the same directory structure so that you can use cloud files autoloader. It will incrementally read only new files https://docs.microsoft.com/en-us/azure/databricks/spark/latest/structured-streaming/auto-loaderSo it will ...

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csmcpherson
by New Contributor III
  • 622 Views
  • 1 replies
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Resolved! Workflow file watch - capture filename trigger

With respect to the file watch trigger in workflows, how can we capture what files and or path was identified as raising the trigger?  I'd like to use this information to set parameters based upon the file name and the file path  Thank you!  https://...

  • 622 Views
  • 1 replies
  • 1 kudos
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szymon_dybczak
Esteemed Contributor III
  • 1 kudos

Hi @csmcpherson ,This is currently not supported, but databricks team is working on that idea according to below thread:Solved: File information is not passed to trigger job on f... - Databricks Community - 39266As a workaround, if you use autoloader...

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Govardhana
by New Contributor
  • 2179 Views
  • 1 replies
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Interview question for ADF

Hello,I am trying to attending interviews for Data Engineer i have 3 years Experince I am looking realtime interview question ,If any one have could you please share.Thank you,Govardhana

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szymon_dybczak
Esteemed Contributor III
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Hi @Govardhana ,There are plenty of those question on the internet. Below, is the one that's actually quite good:- Top 40+ Azure Data Factory Interview Questions 2024 (k21academy.com)

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Djelany
by New Contributor II
  • 3868 Views
  • 3 replies
  • 1 kudos

Resolved! DLT Event Logs

Hi,Does anyone know what details:planning_information:technique_information[0]:cost under planning_information event type means in my DLT workflow system event logs? For context, I'm trying to track the cost per run of my DLT workflow and I do not ha...

  • 3868 Views
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Latest Reply
adriennn
Contributor III
  • 1 kudos

you can enable system.billing schema and see the costs of the runs from the usage table.

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jay971
by New Contributor II
  • 1221 Views
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Error: Cannot use legacy parameters because the job has job parameters configured.

I created a job which has two Job Parameters. How can I use Databricks CLI to pass different values to those parameters. 

  • 1221 Views
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jay971
New Contributor II
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The job ran but did not pick up the values from the CLI.

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Saf4Databricks
by New Contributor III
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Reading single file from Databricks DBFS

I have a Test.csv file in FileStore of DBFS in Databricks Community edition. When I try to read the file using With Open, I get the following error:FileNotFoundError: [Errno 2] No such file or directory: '/dbfs/FileStore/tables/Test.csv' import os wi...

  • 721 Views
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Saf4Databricks
New Contributor III
  • 0 kudos

@EricRM It should work. Please see the accepted response from this same forum here. So, we still need to find a cause of the error. Following is the detailed error message. Maybe, this will help readers understand the issue better and help it resolve...

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