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Forum Posts

Anske
by New Contributor II
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DLT apply_changes applies only deletes and inserts not updates

Hi,I have a DLT pipeline that applies changes from a source table (cdctest_cdc_enriched) to a target table (cdctest), by the following code:dlt.apply_changes(    target = "cdctest",    source = "cdctest_cdc_enriched",    keys = ["ID"],    sequence_by...

Data Engineering
Delta Live Tables
  • 8 Views
  • 0 replies
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zahra_Khedri
by Visitor
  • 51 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
  • 51 Views
  • 1 replies
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Latest Reply
GeoPer
Visitor
  • 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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stepysamud
by Visitor
  • 43 Views
  • 0 replies
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Workflow UI broken after creating job via the api

Hi all,I'm in the progress of migrating from Databricks Azure to Databricks AWS.One part of this is migrating all our workflows which I wanted to via the /api/2.1/jobs/create api with the workflow passed via the json body. I have successfully created...

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  • 43 Views
  • 0 replies
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madrhr
by New Contributor
  • 68 Views
  • 2 replies
  • 1 kudos

SparkContext lost when running %sh script.py

I need to execute a .py file in Databricks from a notebook (with arguments which for simplicity i exclude here). For this i am using:%sh script.pyscript.py:from pyspark import SparkContext def main(): sc = SparkContext.getOrCreate() print(sc...

Data Engineering
%sh
.py
bash shell
SparkContext
SparkShell
  • 68 Views
  • 2 replies
  • 1 kudos
Latest Reply
Yeshwanth
Contributor III
  • 1 kudos

@madrhr I think this occurs because one session is initiated within the Python script (.py file), while in the Databricks notebook, we have a pre-configured Spark session. It is important to note that we cannot use more than one Spark session per not...

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deng_dev
by New Contributor III
  • 130 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...

  • 130 Views
  • 1 replies
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Latest Reply
shan_chandra
Honored Contributor III
  • 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
  • 4838 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?

  • 4838 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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Sambit_S
by New Contributor II
  • 40 Views
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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...

Sambit_S_0-1713966940987.png
  • 40 Views
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drag7ter
by New Contributor II
  • 514 Views
  • 2 replies
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Resolved! Not able to set run_as service_principal_name

I'm trying to run: databricks bundle deploy -t prod --profile PROD_Service_Principal My bundle looks: bundle: name: myproject include: - resources/jobs/bundles/*.yml targets: # The 'dev' target, for development purposes. This target is the de...

  • 514 Views
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Latest Reply
drag7ter
New Contributor II
  • 0 kudos

In my case I replaced alias PROD_Service_Principal with id c250831b-5a2a-4461-a855-83b9102f797e and it works. Not intuitive, probably this is a bug in CLI ot bundles service_principal_name: c250831b-5a2a-4461-a855-83b9102f797e  

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EhsanSaba
by New Contributor
  • 214 Views
  • 0 replies
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RocksDB results in empty stream/stream joins dataframe

Since we enable RocksDB in our spark.conf the stream to stream joins/unions results in empty dataframe, does anyone else have the same experience? it is on AWSspark.conf.set("spark.sql.streaming.stateStore.providerClass","com.databricks.sql.streaming...

  • 214 Views
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RakeshRakesh_De
by New Contributor III
  • 392 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
  • 392 Views
  • 7 replies
  • 0 kudos
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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ajbush
by New Contributor III
  • 9204 Views
  • 6 replies
  • 2 kudos

Connecting to Snowflake using an SSO user from Azure Databricks

Hi all,I'm just reaching out to see if anyone has information or can point me in a useful direction. I need to connect to Snowflake from Azure Databricks using the connector: https://learn.microsoft.com/en-us/azure/databricks/external-data/snowflakeT...

  • 9204 Views
  • 6 replies
  • 2 kudos
Latest Reply
aagarwal
New Contributor
  • 2 kudos

@ludgervisser We are trying to connect to Snowflake via Azure AD user through the externalbrowser method but the browser window doesn't open. Could you please share an example code of how you managed to achieve this, or to some documentation? @BobGeo...

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Brad
by Contributor
  • 100 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(...

  • 100 Views
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Latest Reply
Brad
Contributor
  • 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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