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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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Anonymous
by • Not applicable
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Resolved! MetadataChangedException

A delta lake table is created with identity column and I'm not able to load the data parallelly from four process. i'm getting the metadata exception error.I don't want to load the data in temp table . Need to load directly and parallelly in to delta...

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seans
New Contributor III
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I recently ran into this MetadataChangedException. Watching the video @Hubert Dudek​ posted it's pretty clear what is going on: object storage folks not thinking like someone who builds relational database engines built it. That's to be expected. Dat...

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ranged_coop
by • Valued Contributor II
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How to install Chromium Browser and Chrome Driver on DBX runtime 10.4 and above ?

Hi Team,We are wondering if there is a recommended way to install the chromium browser and chrome driver on Databricks Runtime 10.4 and above ?I have been through the site and have come across several links to this effect, but they all seem to be ins...

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Kaizen
Valued Contributor
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Look into Playwrite instead of Selenium. I went through the same process y'all went through here (ended up writing a init script to install the drivers etc)This is all done for you in playwright. Refer to this post - I hope it helps!!https://communit...

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ros
by • New Contributor III
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merge vs MERGE INTO

from 10.4 LTS version we have low shuffle merge, so merge is more faster. But what about MERGE INTO function that we run in sql notebook of databricks. Is there any performance difference when we use databrciks pyspark ".merge" function vs databricks...

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Anonymous
Not applicable
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Hi @Roshan RC​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers you...

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pepe
by • New Contributor II
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Why can't I install python libraries when i update cluster runtime from 10.1 to 12.1?

This same question was asked here 9 months ago without any answer:https://community.databricks.com/s/question/0D58Y000096VjKrSAK/managedlibraryinstallfailed-when-changing-databricks-runtime-version-from-91-to-110I was using runtime 9.1, and then upgr...

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Anonymous
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Hi @JOSE RODRIGUEZ​ Hope everything is going great.Just wanted to check in if you were able to resolve your issue. If yes, would you be happy to mark an answer as best so that other members can find the solution more quickly? If not, please tell us s...

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powerus
by • New Contributor III
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Resolved! "Failure to initialize configurationInvalid configuration value detected for fs.azure.account.key" using com.databricks:spark-xml_2.12:0.12.0

Hi community,I'm trying to read XML data from Azure Datalake Gen 2 using com.databricks:spark-xml_2.12:0.12.0:spark.read.format('XML').load('abfss://[CONTAINER]@[storageaccount].dfs.core.windows.net/PATH/TO/FILE.xml')The code above gives the followin...

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powerus
New Contributor III
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The issue was also raised here: https://github.com/databricks/spark-xml/issues/591A fix is to use the "spark.hadoop" prefix in front of the fs.azure spark config keys:spark.hadoop.fs.azure.account.oauth2.client.id.nubulosdpdlsdev01.dfs.core.windows.n...

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ranged_coop
by • Valued Contributor II
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Equivalent Machine Types between Databricks on Azure and GCP

Hi All,Hope everyone is doing well.We are currently validating Databricks on GCP and Azure.We have a python notebook that does some ETL (Copy, extract zip files and process files within the zip files)Our Cluster Config on AzureDBX Runtime - 10.4 - Dr...

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ranged_coop
Valued Contributor II
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hi @Tunde Abib​ , I have gone through the links while updating, but did not see any major documented slow downs mentioned in them. 

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Anonymous
by • Not applicable
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Query silently failed

Hello all, I'm using the older 6.4 runtime and noticed that a query return no result whereas the same query on 10.4 provided the expected result. This is bad, because I got no error, simply no result at all.Is there is some spark settings on the clus...

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Anonymous
Not applicable
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Hi @Alessio Palma​ following up did you get chance to check @Kaniz Fatma​ 's previous comments ?

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Emiel_Smeenk
by • New Contributor III
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Resolved! Databricks Runtime 10.4 LTS - AnalysisException: No such struct field id in 0, 1 after upgrading

Hello,We are working to migrate to databricks runtime 10.4 LTS from 9.1 LTS but we're running into weird behavioral issues. Our existing code works up until runtime 10.3 and in 10.4 it stopped working.Problem:We have a nested json file that we are fl...

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Emiel_Smeenk
New Contributor III
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It seems like the issue was miraculously resolved. I did not make any code changes but everything is now running as expected. Maybe the latest runtime 10.4 fix released on April 19th also resolved this issue unintentionally.

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