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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

zahra_Khedri
by New Contributor
  • 1010 Views
  • 1 replies
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An error occurred when loading Jobs and Workflows App.

Hi,I was trying to open the Workflows but there is an error "An error occurred when loading Jobs and Workflows App." we need help to know why it happened and how we can resolve it please. 

Screenshot 2024-04-25 at 11.31.53.png
  • 1010 Views
  • 1 replies
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Latest Reply
GeoPer
New Contributor III
  • 0 kudos

Same...and the weirdest is that all of the services looks healthy in https://status.databricks.com/Region: eu-central-1Provider: AWSCould anyone provide some info here?

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deng_dev
by New Contributor III
  • 1214 Views
  • 1 replies
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Cached Views in MERGE INTO operation

Hi everyone!I want to use in-memory cached views in a merge into operation, but I am not entirely sure if the exactly saved in-memory view is used in this operation or not.So, suppose I have a table named table_1 and a cached view named cached_view_1...

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Latest Reply
shan_chandra
Databricks Employee
  • 0 kudos

@deng_dev - Are you using external metastore by any chance. From the physical plan, we could see the catalog`.`db`.`table_1` is not cached.  If it is glue catalog, then caching can be enabled based on the below configs in the article below https://do...

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Anonymous
by Not applicable
  • 16365 Views
  • 15 replies
  • 8 kudos

Resolved! What are some best practices for CICD?

A number of people have questions on using Databricks in a productionalized environment. What are the best practices to enable CICD automation?

  • 16365 Views
  • 15 replies
  • 8 kudos
Latest Reply
BaivabMohanty
New Contributor II
  • 8 kudos

Any leads/posts for Databricks CI/CD  integration with Bitbucket pipeline. I am facing the below error while I creation my CICD pipeline pipelines:branches:master:- step:name: Deploy Databricks Changesimage: docker:19.03.12services:- dockerscript:# U...

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14 More Replies
Sambit_S
by New Contributor III
  • 1329 Views
  • 0 replies
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Error during deserializing protobuf data

I am receiving protobuf data in a json attribute and along with it I receive a descriptor file.I am using from_protobuf to deserialize the data as below,It works most of the time but giving error when there are some recursive fields within the protob...

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RakeshRakesh_De
by New Contributor III
  • 14787 Views
  • 7 replies
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Spark CSV file read option to read blank/empty value from file as empty value only instead Null

Hi,I am trying to read one file which having some blank value in column and we know spark convert blank value to null value during reading, how to read blank/empty value as empty value ?? tried DBR 13.2,14.3I have tried all possible way but its not w...

RakeshRakesh_De_0-1713431921922.png
Data Engineering
csv
EmptyValue
FileRead
  • 14787 Views
  • 7 replies
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Latest Reply
-werners-
Esteemed Contributor III
  • 0 kudos

OK, after some tests:The trick is in surrounding text in your csv with quotes.  Like that spark can actually make a difference between a missing value and an empty value.  Missing values are null and can only be converted to something else implicitel...

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Brad
by Contributor II
  • 1660 Views
  • 2 replies
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Pushdown in Postgres

Hi team,In Databricks I need to query a postgres source likeselect * from postgres_tbl where id in (select id from df)the df is got from a hive table. If I use JDBC driver, and doquery = '(select * from postgres_tbl) as t' src_df = spark.read.format(...

  • 1660 Views
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Latest Reply
Brad
Contributor II
  • 0 kudos

Thanks for response. I cannot do that as we incrementally loading from source very frequently. We cannot read full data each time.

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AnaMocanu
by Contributor
  • 4056 Views
  • 2 replies
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Resolved! Best way to parse Google Analytics data in Databricks notebook

I managed to extract the Google Analytics data via lakehouse federation and the Big Query connection but the events table values are in a weird JSON format{"v":[{"v":{"f":[{"v":"ga_session_number"},{"v":{"f":[{"v":null},{"v":"2"},{"v":null},{"v":null...

  • 4056 Views
  • 2 replies
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Latest Reply
daniel_sahal
Esteemed Contributor
  • 1 kudos

@AnaMocanu I was using this function, with a little modifications on my end:https://gist.github.com/shreyasms17/96f74e45d862f8f1dce0532442cc95b2Maybe this will be helpful for you

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1 More Replies
Clampazzo
by New Contributor II
  • 1686 Views
  • 1 replies
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Can I see queries sent to All Purpose Compute from Power BI?

I am brand new to Databricks and am working on connecting a power bi semantic model to our databricks instance.  I have successfully connected it to an All Purpose Compute but was wondering if there was a way I could see the queries that power bi is ...

Data Engineering
Power BI
sql
  • 1686 Views
  • 1 replies
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Latest Reply
Gaut23
Databricks Employee
  • 0 kudos

For All purpose compute, best bet would be to use the system tables,specifically the system.access.audit table.  https://docs.databricks.com/en/administration-guide/system-tables/index.html

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Olaoye_Somide
by New Contributor III
  • 13009 Views
  • 1 replies
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How to Implement Custom Logging in Databricks without Using _jvm Attribute with Spark Connect?

Hello Databricks Community,I am currently working in a Databricks environment and trying to set up custom logging using Log4j in a Python notebook. However, I've run into a problem due to the use of Spark Connect, which does not support the _jvm attr...

Data Engineering
Apache Spark
data engineering
  • 13009 Views
  • 1 replies
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Latest Reply
arpit
Databricks Employee
  • 0 kudos

import logging logging.getLogger().setLevel(logging.WARN) log = logging.getLogger("DATABRICKS-LOGGER") log.warning("Hello")

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anish2102
by New Contributor III
  • 4367 Views
  • 4 replies
  • 1 kudos

Resolved! Pyspark operations slowness in CLuster 14.3LTS as compared to 13.3 LTS

In my notebook, i am performing few join operations which are taking more than 30s in cluster 14.3 LTS where same operation is taking less than 4s in 13.3 LTS cluster. Can someone help me how can i optimize pyspark operations like joins and withColum...

Data Engineering
clustr-14.3
spark-3.5
  • 4367 Views
  • 4 replies
  • 1 kudos
Latest Reply
Lakshay
Databricks Employee
  • 1 kudos

Thank you for sharing the analysis

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3 More Replies
SG
by New Contributor II
  • 2805 Views
  • 3 replies
  • 1 kudos

Customize job run name when running jobs from adf

Hi guys, i am running my Databricks jobs on a cluster job from azure datafactory using a databricks Python activity When I monitor my jobs in workflow-> job runs . I see that the run name is a concatenation of adf pipeline name , Databricks python ac...

  • 2805 Views
  • 3 replies
  • 1 kudos
Latest Reply
AmanSehgal
Honored Contributor III
  • 1 kudos

I don't think that level of customisation is provided. However, I can suggest some workarounds:REST API: Create a job on the fly with desired name within ADF and trigger it using REST API in Web activity. This way you can track job completion status ...

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2 More Replies
Mohit_m
by Databricks Employee
  • 5923 Views
  • 2 replies
  • 3 kudos

Resolved! Could not initialize class error

User is running a job triggered from ADF in Databricks. In this job they need to use custom libraries that are in jars. Most of the times jobs are running fine, however sometimes it fails with:java.lang.NoClassDefFoundError: Could not initializeAny s...

  • 5923 Views
  • 2 replies
  • 3 kudos
Latest Reply
Mohit_m
Databricks Employee
  • 3 kudos

Can you please check if there are more than one jar containing this class . If multiple jars of the same type are available on the cluster, then there is no guarantee of JVM picking the proper classes for processing, which results in the intermittent...

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1 More Replies
Jorge3
by New Contributor III
  • 4049 Views
  • 3 replies
  • 2 kudos

Resolved! [Databricks Assets Bundles] Workflow trigger on file arrival

Hi everyone!I'm setting up a workflow using Databricks Assets Bundles (DABs). And I want to configure my workflow to be trigger on file arrival. However all the examples I've found in the documentation use schedule triggers. Does anyone know if it is...

  • 4049 Views
  • 3 replies
  • 2 kudos
Latest Reply
Ajay-Pandey
Esteemed Contributor III
  • 2 kudos

Hi @Jorge3 Yes, you can use continues mode also.Please find syntax below - resources: jobs: dbx_job: name: continuous_job_name continuous: pause_status: UNPAUSED queue: enabled: true

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2 More Replies
ismaelhenzel
by Contributor
  • 3097 Views
  • 1 replies
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Addressing Pipeline Error Handling in Databricks bundle run with CI/CD when SUCCESS WITH FAILURES

I'm using Databricks asset bundles and I have pipelines that contain "if all done rules". When running on CI/CD, if a task fails, the pipeline returns a message like "the job xxxx SUCCESS_WITH_FAILURES" and it passes, potentially deploying a broken p...

Data Engineering
bunlde
CICD
Databricks
  • 3097 Views
  • 1 replies
  • 1 kudos
Latest Reply
ismaelhenzel
Contributor
  • 1 kudos

Awesome answer, I will try the first approach. I think it is a less intrusive solution than changing the rules of my pipeline in development scenarios. This way, I can maintain a general pipeline for deployment across all environments. We plan to imp...

  • 1 kudos

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