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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

MarthinusBosma1
by • New Contributor II
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Unable to DROP TABLE: "Lock wait timeout exceeded"

We have a table where the underlying data has been dropped, and seemingly something else must have gone wrong as well, and we want to just get rid of the whole table and schema, but running "DROP TABLE schema.table" is throwing the following error:or...

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Lakshay
Databricks Employee
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The table needs to be dropped from the backend. If you can raise a ticket, support team can do it for you. 

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Data_Engineer3
by • Contributor III
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Resolved! Need to define the struct and array of struct field colum in the delta live table(dlt) in databrick.

I want to create the columns with datatype struct and array of struct datatype in the DLT live tables, will it be possible, if possible could you share the sample for the same.Thanks.

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Data_Engineer3
Contributor III
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I have created DLT live tables pipeline, In Job UI, i can able to see only steps and if any failure happened it show only error at that stage.But if i use any log using print, it doesn't show the logs in the console or any where. how can i see the lo...

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kiko_roy
by • Contributor
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Resolved! IsBlindAppend config changes

Hello Allcan someone please suggest me how can I change the config IsBlindAppend true from false. I need to do this not for a data table but a custom log table .Also is there any concern If I toggle the value as standard practices. pls suggest

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Lakshay
Databricks Employee
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Hi, IsBlindAppend is not a config but an operation metrics that is used in Delta Lake History. The value of this changes based on the type of operation performed on Delta table. https://docs.databricks.com/en/delta/history.html

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francly
by • New Contributor II
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Resolved! terraform create multiple db user

Hi, follow the example to create one user. It's working however I want to create multiple users, I have tried many ways but still cannot get it work, please share some idea.https://registry.terraform.io/providers/databricks/databricks/latest/docs/res...

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Natlab
New Contributor II
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What if I want to give User Name along with the email ID?I used below code but its not helping(code is not failing, but not adding user name)It seems this code line: "display_name = each.key" is not working. Pls suggest.  terraform {required_provider...

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364488
by • New Contributor
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java.io.IOException: Invalid PKCS8 data error when reading data from Google Storage

Databricks workspace is hosted in AWS.  Trying to access data in Google Cloud Platform.I have followed the instructions here: https://docs.databricks.com/en/connect/storage/gcs.htmlI get error: "java.io.IOException: Invalid PKCS8 data." when trying t...

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Debayan
Databricks Employee
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Hi, Could you also please share the whole error stack?  

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Faisal
by • Contributor
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DLT quarantine records

How to capture bad records that are violating expectations into quarantine tables, can someone provide DLT SQL code syntax for the same 

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jose_gonzalez
Databricks Employee
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I would like to share the following docs, which will have examples https://docs.databricks.com/en/delta-live-tables/expectations.html

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Alva
by • New Contributor
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Error while performing async I/O for file

We're running dbt Cloud on DBSQL. And a frequent error we keep getting in our dbt jobs is  "Error while performing async I/O for file [S3 URI path]". Since we don't have access to the full logs it's very difficult to know what's actually going on her...

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jose_gonzalez
Databricks Employee
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do you have access to create a support ticket? if you do, we can retrieve the logs for you and provide the details. If you dont, then you will need access to your driver's logs to identify the root cause of this issue.

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rt-slowth
by • Contributor
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How to writeStream with redshift

I have already checked the documentation below The documentation below does not describe how to write to streaming.Is there a way to write the gold table (type is streaming table), which is the output of the streaming pipeline of Delta Live Tables in...

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jose_gonzalez
Databricks Employee
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Only batch processing is supported.

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umarkhan
by • New Contributor II
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Module not found when using applyInPandasWithState in Repos

I should start by saying that everything works fine if I copy and paste it all into a notebook and run it. The problem starts if we try to have any structure in our application repository. Also, so far we have only run into this problem with applyInP...

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jose_gonzalez
Databricks Employee
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which DBR version are you using? does it works on non DLT jobs?

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sher
by • Valued Contributor II
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did anyone faced this issue in delta table while genrating manifest file

error message : Manifest generation is not supported for tables that leverage column mapping, as external readers cannot read these Delta tableswhy i got this issue. not sure should we need to do any process ?

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jose_gonzalez
Databricks Employee
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could you please share the full stack trace and the repro steps?  

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VishalD
by • New Contributor
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Not able to load nested XML file with struct type

Hello Experts,I am trying to load XML with struct type and having XSI type attribute. below is sample XML format:<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="htt...

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jose_gonzalez
Databricks Employee
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You can try to use from_xml() function, here is the link to the docs https://docs.databricks.com/en/sql/language-manual/functions/from_xml.html

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SimDarmapuri
by • New Contributor II
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Databricks Deployment using Data Thirst

Hi,I am trying to deploy Databricks Notebooks using Azure Devops to different environments using third party extension Data Thirst (Databricks Script Deployment Task by Data Thirst). The pipeline is able to generate/download artifacts but not able to...

SimDarmapuri_0-1705853167362.png
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Latest Reply
-werners-
Esteemed Contributor III
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the extension is quite old and does not know about Unity Catalog.  So that is probably the reason why it fails.But why do you use the extension for notebook propagation from dev to prd?  You can do this using Repos, feature branches and pull requests...

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Michael_Appiah
by • Databricks Partner
  • 3256 Views
  • 1 replies
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Resolved! Display Limits Catalog Explorer

It seems as if the Catalog Explorer can only display a maximum of 1000 folders within a UC Volume. I just ran into this issue when I added new folders to a volume which were not displayed in the Catalog Explorer (only folders 1-1000). I was able to r...

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Latest Reply
Lakshay
Databricks Employee
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Hi @Michael_Appiah , This is a known limitation: https://docs.databricks.com/en/connect/unity-catalog/volumes.html#limitations

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jonathan-dufaul
by • Valued Contributor
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Is there a command in sql cell to ignore formatting for some lines like `# fmt: off` in Python cells

In python cells I can add the comments `# fmt: off` before a block of code that I want black/autoformatter to ignore and `# fmt: on` afterwards. Is there anything similar I can put in sql cells to accomplish the same effect?Some of the recommendation...

Data Engineering
autoformatter
formatter
sql
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