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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

abelian-grape
by New Contributor III
  • 9233 Views
  • 4 replies
  • 0 kudos

Intermittent error databricks job kept running

Hi i have the following error, but the job kept running, is that normal?{     "message": "The service at /api/2.0/jobs/runs/get?run_id=899157004942769 is temporarily unavailable. Please try again later. [TraceId: -]",     "error_code": "TEMPORARILY_U...

  • 9233 Views
  • 4 replies
  • 0 kudos
Latest Reply
abelian-grape
New Contributor III
  • 0 kudos

@Ayushi_Suthar also when ever it happens the job status does not change to "failed". But it keeps running. Is that normal?

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isaac_gritz
by Databricks Employee
  • 11165 Views
  • 1 replies
  • 2 kudos

Change Data Capture with Databricks

How to leverage Change Data Capture (CDC) from your databases to DatabricksChange Data Capture allows you to ingest and process only changed records from database systems to dramatically reduce data processing costs and enable real-time use cases suc...

  • 11165 Views
  • 1 replies
  • 2 kudos
Latest Reply
prasad95
New Contributor III
  • 2 kudos

Hi, @isaac_gritz can you provide any reference resource to achieve the AWS DynamoDB CDC to Delta Tables.Thank You,

  • 2 kudos
DatBoi
by Contributor
  • 12259 Views
  • 2 replies
  • 3 kudos

Resolved! What happens to table created with CTAS statement when data in source table has changed

Hey all - I am sure this has been documented / answered before but what happens to a table created with a CTAS statement when data in the source table has changed? Does the sink table reflect the changes? Or is the data stored when the table is defin...

  • 12259 Views
  • 2 replies
  • 3 kudos
Latest Reply
SergeRielau
Databricks Employee
  • 3 kudos

CREATE TABLE AS (CTAS) is a "one and done" kind of statement.The new table retains no memory on how it came to be.Therefore it will be oblivious to changes in the source.Views, as you say, stored queries, no data is persisted. And therefore the query...

  • 3 kudos
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Dhruv-22
by Contributor III
  • 15244 Views
  • 4 replies
  • 1 kudos

Resolved! Managed table overwrites existing location for delta but not for oth

I am working on Azure Databricks, with Databricks Runtime version being - 14.3 LTS (includes Apache Spark 3.5.0, Scala 2.12). I am facing the following issue.Suppose I have a view named v1 and a database f1_processed created from the following comman...

  • 15244 Views
  • 4 replies
  • 1 kudos
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Red_blue_green
New Contributor III
  • 1 kudos

Hi,this is how the delta format work. With overwrite you are not deleting the files in the folder or replacing them. Delta is creating a new file with the overwritten schema and data. This way you are also able to return to former versions of the del...

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Accn
by Databricks Partner
  • 2220 Views
  • 1 replies
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Dashboard from Notebook - How to schedule

notebook is created with insight and have created dashboard (Not a SQL) from it.Need to schedule this. I have tried scheduling by workflow - it only takes you to the notebookeven the schedule from dashboard takes me to the notebook and not the dashbo...

  • 2220 Views
  • 1 replies
  • 0 kudos
Latest Reply
Ayushi_Suthar
Databricks Employee
  • 0 kudos

Hi @Accn , Thanks for bringing up your concerns, always happy to help  We understand your concern but right now there is only way to refresh a notebook dashboard is via scheduled jobs. To schedule a dashboard to refresh at a specified interval, click...

  • 0 kudos
chrisf_sts
by Databricks Partner
  • 9982 Views
  • 1 replies
  • 1 kudos

Resolved! After moving mounted s3 bucket under unity catalog control, python file paths no longer work

I have been using a mounted external s3 bucket with json files up until a few days ago, when my company changed to using all file mounts under control of the unity catalog.  Suddenly I can no loner run a command like:with open("/mnt/my_files/my_json....

  • 9982 Views
  • 1 replies
  • 1 kudos
Latest Reply
Ayushi_Suthar
Databricks Employee
  • 1 kudos

Hi @chrisf_sts ,Thanks for bringing up your concerns, always happy to help  May I know which cluster access mode you are using to run the notebook commands? Can you please try to run this below command on Single user cluster access mode.  "with open(...

  • 1 kudos
brickster_2018
by Databricks Employee
  • 16245 Views
  • 3 replies
  • 6 kudos

Resolved! How to add I custom logging in Databricks

I want to add custom logs that redirect in the Spark driver logs. Can I use the existing logger classes to have my application logs or progress message in the Spark driver logs.

  • 16245 Views
  • 3 replies
  • 6 kudos
Latest Reply
Kaizen
Valued Contributor
  • 6 kudos

1) Is it possible to save all the custom logging to its own file? Currently it is being logging with all other cluster logs (see image) 2) Also Databricks it seems like a lot of blank files are also being created for this. Is this a bug? this include...

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sha
by New Contributor
  • 2060 Views
  • 1 replies
  • 0 kudos

Importing data from S3 to Azure DataBricks Cluster with Unity Catalog in Shared Mode

Environment details:DataBricks on Azure, 13.3 LTS, Unity Catalog, Shared Cluster mode.Currently in the environment I'm in, we run imports from S3 with code like:spark.read.option('inferSchema', 'true').json(s3_path).  When running on a cluster in Sha...

  • 2060 Views
  • 1 replies
  • 0 kudos
Latest Reply
BR_DatabricksAI
Databricks Partner
  • 0 kudos

Hello Sha, We usually get such error while working with shared cluster mode assuming this your dev environment just to avoid errors, please use different clusters. However as a alternative solution in case if would like to keep the shared cluster the...

  • 0 kudos
Dhruv-22
by Contributor III
  • 10460 Views
  • 4 replies
  • 0 kudos

CREATE TABLE does not overwrite location whereas CREATE OR REPLACE TABLE does

I am working on Azure Databricks, with Databricks Runtime version being - 14.3 LTS (includes Apache Spark 3.5.0, Scala 2.12). I am facing the following issue.Suppose I have a view named v1 and a database f1_processed created from the following comman...

  • 10460 Views
  • 4 replies
  • 0 kudos
Latest Reply
Ayushi_Suthar
Databricks Employee
  • 0 kudos

Hi @Dhruv-22 ,  Based on the information you shared above, the "CREATE OR REPLACE" and "CREATE" commands in Databricks do have different behaviours, particularly when it comes to handling tables with specific target locations. The "CREATE OR REPLACE"...

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DApt
by Databricks Partner
  • 10872 Views
  • 1 replies
  • 2 kudos

REDACTED_POSSIBLE_SECRET_ACCESS_KEY as part of column value result form aes_encrypt

Hi, i've encountered an error using base64/aes_encrypt, as result the string saved contains 'REDACTED_POSSIBLE_SECRET_ACCESS_KEY' at the end destroying the original data, rendering it useless undecryptable, is there a way to avoid this replacement in...

Captura de pantalla 2023-12-11 152523.png DApt_0-1702326511602.png DApt_3-1702327037748.png DApt_1-1702326665014.png
  • 10872 Views
  • 1 replies
  • 2 kudos
Latest Reply
DataEnthusiast1
New Contributor II
  • 2 kudos

I had the same issue, and my usage was similar to OP:base64(aes_encrypt(<clear_text>, unbase64(secret(<scope>, <key>))))Databricks support suggested to not call secret within the insert/update operation that writes to the table. After updating the py...

  • 2 kudos
Dhruv-22
by Contributor III
  • 10912 Views
  • 3 replies
  • 1 kudos

Resolved! REPLACE TABLE AS SELECT is not working with parquet whereas it works fine for delta

I am working on Azure Databricks, with Databricks Runtime version being - 14.3 LTS (includes Apache Spark 3.5.0, Scala 2.12). I am facing the following issue.Suppose I have a view named v1 and a database f1_processed created from the following comman...

  • 10912 Views
  • 3 replies
  • 1 kudos
Latest Reply
Ayushi_Suthar
Databricks Employee
  • 1 kudos

Hi @Dhruv-22  We understand that you are facing the following error when using REPLACE TABLE AS SELECT  on the Parquet Table but at this moment the REPLACE TABLE AS SELECT operation you're trying to perform is not supported for Parquet tables. Accord...

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Kroy
by Contributor
  • 2498 Views
  • 2 replies
  • 0 kudos

Near Real time Solutioning on data from Core System which gets updated

We are trying to build solution , where customer data stored in one of RDBM database SQL server and we are moving this data to delta lake in medallion architecture and want to this to be near real time by using DLT pipeline.Problem is that source tab...

  • 2498 Views
  • 2 replies
  • 0 kudos
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Kroy
Contributor
  • 0 kudos

came across this matrix while reading about DLT what is read from complete and write to Incremental means ?

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