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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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Data + AI Summit 2024 - Data Engineering & Streaming

Forum Posts

chloeh
by New Contributor II
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Chaining window aggregations in SQL

In my SQL data transformation pipeline, I'm doing chained/cascading window aggregations: for example, I want to do average over the last 5 minutes, then compute average over the past day on top of the 5 minute average, so that my aggregations are mor...

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Fresher
by New Contributor II
  • 878 Views
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users are deleted/ unsynced from azure AD to databricks

In azure AD, it's shows users are synced to Databricks. But in Databricks, it's showing users is not a part of the group. The user is not part of only one group , he is part of remaining groups. All the syncing works fine till yesterday. I don't now ...

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Darian
by New Contributor II
  • 1077 Views
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Delta Live table getting error of garbage collection after running few days

Hi, i am using delta live table in continuous mode for a real time streaming data pipeline. After running the pipeline like 2-3 days i am getting this garbage collection error:Driver/10.15.0.73 paused the JVM process 68 seconds during the past 120 se...

Darian_0-1714426883477.png Darian_1-1714426964675.png
  • 1077 Views
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Latest Reply
Darian
New Contributor II
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Here are the metrics:The size/type:Thanks!   

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1 More Replies
al_joe
by Contributor
  • 9399 Views
  • 5 replies
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Resolved! Split a code cell at cursor position? Add a cell above/below?

In JupyterLab notebooks, we can --In edit mode, you can press Ctrl+Shift+Minus to split the current cell into two at the cursor position In command mode, you can click A or B to add a cell Above or Below the current cellare there equivalent shortcuts...

  • 9399 Views
  • 5 replies
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Latest Reply
DavidKxx
Contributor
  • 3 kudos

What's the status of the ctrl-alt-minus shortcut for splitting a cell?  That keyboard combination does absolutely nothing in my interface (running Databricks via Chrome on GCP).

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4 More Replies
Lazloo
by New Contributor III
  • 15851 Views
  • 6 replies
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databricks-connect version 13: spark-class2.cmd not found

I install the newest version "databricks-connect==13.0.0". Now get the issue    Command C:\Users\Y\AppData\Local\pypoetry\Cache\virtualenvs\X-py3.9\Lib\site-packages\pyspark\bin\spark-class2.cmd"" not found   konnte nicht gefunden werden.   Traceback...

  • 15851 Views
  • 6 replies
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Latest Reply
Susumu_Asaga
New Contributor II
  • 4 kudos

Use this code:from databricks.connect import DatabricksSession spark = DatabricksSession.builder.getOrCreate() 

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Phani1
by Valued Contributor II
  • 873 Views
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Databricks cell-level code parallel execution through the Python threading library

Hi Team,We are currently planning to  implement Databricks cell-level code parallel execution through the Python threading library. We are interested in comprehending the resource consumption and allocation process from the cluster. Are there any pot...

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jitesh
by New Contributor
  • 686 Views
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Code reusability for silver table transformations

How/how many databricks notebooks should be created to populate multiple silver delta tables, all having different and complex transformations ? What's the best practice -1. create a notebook each for a silver table ?2. push SQL transformation logic ...

  • 686 Views
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Ruby8376
by Valued Contributor
  • 792 Views
  • 1 replies
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Databricks sql warehouse has Serverless compute as a public preview.

There is a risk form infosec as it is processed in the control plane shared with other azure clients. s there any control to mitigate the risk?

  • 792 Views
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Latest Reply
PL_db
Databricks Employee
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You can find more information on that topic here. "With Databricks, your serverless workloads are protected by multiple layers of security. These security layers form the foundation of Databricks’ commitment to providing a secure and reliable environ...

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astrobil
by New Contributor II
  • 805 Views
  • 1 replies
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Tab Stops Indenting in SQL Editor

I am utilizing Databricks via Azure, and I've been consistently experiencing an issue with the SQL Editor. The tab button, instead of indenting, redirects my cursor to seemingly random parts of the page. This problem has persisted since I began using...

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Latest Reply
jose_gonzalez
Databricks Employee
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which DBR version are you using? which web browser are you using?

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kartikmnc
by New Contributor
  • 959 Views
  • 1 replies
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Regarding Exam got Suspended at middle without any reason.

Hi Team,My Databricks Certified Data Engineer Associate exam got suspended on 17th December and it is in progress state.I was there continuously in front of the camera and suddenly the alert appeared, and support person asked me to show the desk and ...

  • 959 Views
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Latest Reply
jose_gonzalez
Databricks Employee
  • 1 kudos

Adding @Retired_mod for visibility on this request

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Hubert-Dudek
by Esteemed Contributor III
  • 812 Views
  • 1 replies
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How much USD are you spending on Databricks?

Join two system tables and get exactly how much USD you are spending.The short version of the query: SELECT u.usage_date, u.sku_name, SUM(u.usage_quantity * p.pricing.default) AS total_spent, p.currency_code FROM system.billing....

system_pig.png
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Latest Reply
jose_gonzalez
Databricks Employee
  • 1 kudos

Thank you for sharing this information @Hubert-Dudek 

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Fresher
by New Contributor II
  • 666 Views
  • 1 replies
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Query is taking too long to run

I have two clusters. Cluster A(spark cluster) and cluster B(SQL warehouse). whenever I try to run a particular query using cluster B, it works fine but whenever I try to run same query using cluster A. It's taking time and never show the output

  • 666 Views
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Latest Reply
jose_gonzalez
Databricks Employee
  • 0 kudos

Check the physical query plan of the query you are running. Also, check the Spark UI to identify where is taking time and why.

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shanebo425
by New Contributor III
  • 788 Views
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Databricks OutOfMemory error on code that previously worked without issue

I have a notebook in Azure Databricks that does some transformations on a bronze tier table and inserts the transformed data into a silver tier table. This notebook is used to do an initial load of the data from our existing system into our new datal...

  • 788 Views
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Latest Reply
jose_gonzalez
Databricks Employee
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Please review your Spark UI from the old job execution versus the new job execution. You might need to check if the data volume has increase and that could be the reason of the OOM

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Phani1
by Valued Contributor II
  • 827 Views
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Execute Pyspark cells concurrently

Hi Team,Hi Team,Is it feasible to run pyspark cells concurrently in databricks notebooks? If so, kindly provide instructions on how to accomplish this. We aim to execute the intermediate steps simultaneously.The given scenario entails the simultaneou...

  • 827 Views
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PrashantAghara
by New Contributor II
  • 992 Views
  • 1 replies
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org.apache.spark.SparkException: Job aborted due to stage failure when writing to Cosmos

I am writing data to cosmos DB using Python & Spark on DatabricksI am getting below error :org.apache.spark.SparkException: Job aborted due to stage failure: Authorized committer (attemptNumber=0, stage=192, partition=105) failed; but task commit suc...

  • 992 Views
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Latest Reply
PrashantAghara
New Contributor II
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The configs are for cluster:Worker Type & Driver type : Standard_D16ads_v5RUs for Cosmos : 1.5L

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