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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

-werners-
by Esteemed Contributor III
  • 5823 Views
  • 0 replies
  • 19 kudos

www.lunasec.io

Log4J: part 2Apparently log4j 2.15 is still vulnerable:https://www.lunasec.io/docs/blog/log4j-zero-day-update-on-cve-2021-45046/So beter use version 2.16.But as mentioned in several topics: Databricks does not use an impacted version.

  • 5823 Views
  • 0 replies
  • 19 kudos
steven_vcnt
by New Contributor III
  • 9173 Views
  • 3 replies
  • 4 kudos

Resolved! ADLSGen2: Cannot display Delta table summary from Data>Table tab on Databricks

Hello, I have set up my account storage on Azure with an ADLSGen2 and I have succeeded to save the delta table on my ADLSGen2, from there I have created my delta table on Databricks.From there I am unable to display the summary of my delta table unde...

Errorimage
  • 9173 Views
  • 3 replies
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Latest Reply
steven_vcnt
New Contributor III
  • 4 kudos

Hello,Following Hubert comment, in order to create a delta table on Databricks from Azure, I had to use CLONE argument in order to copy the data plus the metadata of my delta table on Azure. In order to set up the connection between Databricks and A...

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Redkite
by Databricks Partner
  • 5868 Views
  • 7 replies
  • 2 kudos

Create table for non-admins (Table Access Control cluster/workspace)

Is there a way for non admin (at workspace level) or users without having (SELECT, MODIFY on ANY File) to create tables (unmanaged/external) even though they are owner of the database in which they want to create tables in a Table Access Controlled c...

  • 5868 Views
  • 7 replies
  • 2 kudos
Latest Reply
Blackwell15
New Contributor II
  • 2 kudos

Grant privileges on all the explain tables to non admin user as ... where BIADMIN is the non admin user who wants to generate explain plans. AdvancedMD Login

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6 More Replies
ssm3819
by Databricks Partner
  • 10514 Views
  • 3 replies
  • 4 kudos

Resolved! Gstreamer installation in databricks

Hi All,i am trying to install the Gstreamer using the instructions in the below link.https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/how-to-use-codec-compressed-audio-input-streams?tabs=debian&pivots=programming-language-pyth...

image.png image.png
  • 10514 Views
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Latest Reply
ssm3819
Databricks Partner
  • 4 kudos

Thanks you all.i have resolved this issue by running the below command.Update Packagessudo apt-get update sudo apt-get upgradesudo apt-get build-essentialsudo apt-get pkg-configsudo apt install libgstreamer1.0-0 \gstreamer1.0-plugins-base \gstreamer1...

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Srikanth_Gupta_
by Databricks Employee
  • 8833 Views
  • 2 replies
  • 0 kudos

How to process images and video through structured streaming using Delta Lake?

Can we scan though videos and identify and alert in real time if something goes wrong? what are best practices for this kind of use case?

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Latest Reply
Anonymous
Not applicable
  • 0 kudos

Maybe I'm a little off topic, but can you recommend companies that are engaged in video production? I want to make an explanatory video for my site.

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Loki
by New Contributor III
  • 14749 Views
  • 10 replies
  • 3 kudos

Apache Log4J Vulnerability

Hi Community, We got an email from our IT Team regarding Apache Log4J Vulnerability. Just wanted to understand if our implementation will be affected by this or not. We are using the following library or package in our notebooksimport org.apache.log4...

  • 14749 Views
  • 10 replies
  • 3 kudos
Latest Reply
Hubert-Dudek
Databricks MVP
  • 3 kudos

On most databricks distributions log4j version is 1.2.17

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Mariusz_Cyp
by New Contributor II
  • 12106 Views
  • 3 replies
  • 12 kudos

When the billing time starts for the cluster?

Hi All, I'm just wondering when exactly the billing time starts for the DataBricks cluster? Is starting time included? If cluster creation time takes 3 minutes and query execution only 2, will I pay for 2 or 5?​Thanks in advance! MC

  • 12106 Views
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  • 12 kudos
Latest Reply
franco_patano
Databricks Employee
  • 12 kudos

Billing for databricks DBUs starts when Spark Context becomes available. Billing for the cloud provider starts when the request for compute is received and the VMs are starting up.

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Soma
by Valued Contributor
  • 5094 Views
  • 2 replies
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Resolved! AutoLoader with Custom Queue

Hi Everyone can someone help with creating custom queue for auto loader as given here as default FlushwithClose event is not getting created when my data is uploaded to blob as given in azure DB docscloudFiles.queueNameThe name of the Azure queue. If...

  • 5094 Views
  • 2 replies
  • 1 kudos
Latest Reply
Hubert-Dudek
Databricks MVP
  • 1 kudos

you need to setup notification service for blob/adls like here https://docs.databricks.com/spark/latest/structured-streaming/auto-loader-gen2.html#cloud-resource-managementsetUpNotificationServices will return queue name which later can be used in au...

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mrvi2310
by New Contributor II
  • 11952 Views
  • 4 replies
  • 3 kudos

what is the difference between weekday and dayofweek function in spark SQL?

dayofweek: https://docs.databricks.com/sql/language-manual/functions/dayofweek.htmlweekday : https://docs.databricks.com/sql/language-manual/functions/weekday.htmlAccording to the documentation , they both are synonym functions. But when I use it I n...

weekday vs dayofweek
  • 11952 Views
  • 4 replies
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Latest Reply
Hubert-Dudek
Databricks MVP
  • 3 kudos

That's correct for weekday moday=0 for dayofweek Sunday=1.​​You can also look for documentation here https://spark.apache.org/docs/latest/api/python/reference/api/pyspark.sql.functions.dayofweek.html​https://spark.apache.org/docs/latest/api/sql/index...

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herry
by New Contributor III
  • 6801 Views
  • 6 replies
  • 4 kudos

CVE-2021-44228

Hi,Any affect of CVE-2021-44228 problem on Databricks platform?Is there any action that needs to be done by Databricks customer related to CVE-2021-44228?

  • 6801 Views
  • 6 replies
  • 4 kudos
Latest Reply
Hubert-Dudek
Databricks MVP
  • 4 kudos

On most databricks distributions log4j version is 1.2.17

  • 4 kudos
5 More Replies
Mohit_m
by Databricks Employee
  • 5091 Views
  • 1 replies
  • 5 kudos

How to find out the users who accessed Databricks and from which location

How to find out the users who accessed Databricks and from which location

  • 5091 Views
  • 1 replies
  • 5 kudos
Latest Reply
Mohit_m
Databricks Employee
  • 5 kudos

You can use Audit logs to fetch this dataQuery:%sqlSELECT DISTINCT userIdentity.email, sourceIPAddressFROM audit_logsWHERE serviceName = "accounts" AND actionName LIKE "%login%"Please find below the docs to analyse the Audit logshttps://docs.databric...

  • 5 kudos
-werners-
by Esteemed Contributor III
  • 4562 Views
  • 3 replies
  • 14 kudos

Notebook fails in job but not in interactive mode

I have this notebook which is scheduled by Data Factory on a daily basis.It works fine, up to today. All of a sudden I keep on getting NullpointerException when writing the data.After some searching online, I disabled AQE. But this does not help.Th...

  • 4562 Views
  • 3 replies
  • 14 kudos
Latest Reply
-werners-
Esteemed Contributor III
  • 14 kudos

After some tests it seems that if I run the notebook on an interactive cluster, I only get 80% of load (Ganglia metrics).If I run the same notebook on a job cluster with the same VM types etc (so the only difference is interactive vs job), I get over...

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pjp94
by Contributor
  • 3572 Views
  • 4 replies
  • 9 kudos

Databrick Job - Notebook Execution

Question - When you set a reoccuring job to simply update a notebook, does databricks clear the state of the notebook prior to executing the notebook? If not, can I configure it to make sure it clears the state before running?

  • 3572 Views
  • 4 replies
  • 9 kudos
Latest Reply
Anonymous
Not applicable
  • 9 kudos

@Paras Patel​ - Would you be happy to mark Hubert's answer as best so that other members can find the solution more easily?Thanks!

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morganmazouchi
by Databricks Employee
  • 10877 Views
  • 7 replies
  • 2 kudos

Resolved! Incremental updates in Delta Live Tables

What happens if we change the logic for the delta live tables and we do an incremental update. Does the table get reset (refresh) automatically or would it only apply the logic to new incoming data? would we have to trigger a reset in this case?

  • 10877 Views
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Latest Reply
morganmazouchi
Databricks Employee
  • 2 kudos

Here is my finding on when to refresh (reset) the table: If it is a complete table all the changes would be apply automatically. If the table is incremental table, you need to do a manually reset (full refresh).

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6 More Replies
Kody_Devl
by New Contributor II
  • 8504 Views
  • 3 replies
  • 2 kudos

%SQL Append null values into a SQL Table

Hi All, I am new to Databricks and am writing my first program.Note: Code Shown Below:I am creating a table with 3 columns to store data. 2 of the columns will be appended in from data that I have in another table.When I run my append query into the...

  • 8504 Views
  • 3 replies
  • 2 kudos
Latest Reply
Kody_Devl
New Contributor II
  • 2 kudos

Hi Hubert,Your answer moves me closer to being able to update pieces of a 26 field MMR_Restated table in pieces are the correct fields values are calculated Thru the process. I have been looking for a way to be able to update in "pieces"...... 2 fie...

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