- 3807 Views
- 3 replies
- 4 kudos
Resolved! Approach to monthly data snapshots
HelloI'm building a datawarehouse with all the usual facts and dimensionsIt will flush (truncate) and rebuild on a monthly basisUsers have the need to not only view the data now but also view it historically i.e. what it was a point in timeMy initial...
- 3807 Views
- 3 replies
- 4 kudos
- 2171 Views
- 3 replies
- 3 kudos
Resolved! getting error while accessing dbfs from databricks community account and couldnt upload any files
Hi, I have enabled dbfs in my databricks community account and started the cluster. while accessing dbfs its throwing an error.
- 2171 Views
- 3 replies
- 3 kudos
- 3 kudos
Hi @Retired_mod I am no longer facing this issue, Thanks to the team for fixing it !
- 3 kudos
- 2214 Views
- 2 replies
- 0 kudos
DatabricksSession and SparkConf
Hi,I want to initialize a Spark session using `DatabricksSession`. However, it seems not possible to call `.config()` and pass it a `SparkConf` instance. The following works:# Initialize the configuration for the Spark session confSettings = [ ("...
- 2214 Views
- 2 replies
- 0 kudos
- 0 kudos
In almost all cases you don't need to create a new spark session, as Databricks will do it for you automatically.If it's only about spark configurations, there are multiple ways to set it:Cluster settingsspark.conf.set
- 0 kudos
- 6798 Views
- 3 replies
- 3 kudos
Resolved! CSV import error
Upload ErrorError occurred when processing file tips1.csv: [object Object]. I've been trying to import a csv file from my local machine to the databricks. The above mentioned error couldn't be resolved. Anyone pls help me in this regard.
- 6798 Views
- 3 replies
- 3 kudos
- 3 kudos
@Retired_mod - this is now fixed. Thank you so much for your prompt action. Appreciate it.
- 3 kudos
- 3727 Views
- 2 replies
- 0 kudos
Delta Live Table autoloader's inferColumnTypes does not work
I am experimenting with DLTs/Autoloader. I have a simple, flat JSON file that I am attempting to load into a DLT (following this guide) like so: CREATE OR REFRESH STREAMING LIVE TABLE statistics_live COMMENT "The raw statistics data" TBLPROPERTIES (...
- 3727 Views
- 2 replies
- 0 kudos
- 0 kudos
I had the same issue with a similar JSON structure as yours. Adding the option "multiLine" set to true fixed it for me.df = (spark.readStream.format("cloudFiles") .option("multiLine", "true") .option("cloudFiles.schemaLocation", schemaLocation) ...
- 0 kudos
- 4102 Views
- 5 replies
- 2 kudos
Resolved! Regarding problem in accessing table and uploading files
Hello team,I am new to databricks. I am using databricks community edition. Few days back I was able to access my tables and create tables by uploading csv files. But now I am getting error as "File Browsing Error" .It says Workspace is not set in Cu...
- 4102 Views
- 5 replies
- 2 kudos
- 1753 Views
- 1 replies
- 0 kudos
Seeing results of materialized views while running notebooks
Hi!My team is currently trying out Delta Live Tables (DLT) for managing our ETL pipelines. An issue we're encountering is that we have notebooks that transform data using Spark SQL. We include these in a DLT pipeline, and we want to both run the pipe...
- 1753 Views
- 1 replies
- 0 kudos
- 1175 Views
- 0 replies
- 0 kudos
DLT apply_changes_from_snapshot
Is there way to get auto incremented value for next version parameter like next version = previous version + 1 in that case how to get the previous version value.Below code is from documentation "Historical snapshot processing". The APPLY CHANGES API...
- 1175 Views
- 0 replies
- 0 kudos
- 1999 Views
- 3 replies
- 2 kudos
Issues reading json files with databricks vs oss pyspark
Hi Everyone, I'm currently developing an application in which I read json files with nested structure. I developed my code locally on my laptop using the opensource version of pyspark (3.5.1) using a similar code to this:sample_schema:schema = Struct...
- 1999 Views
- 3 replies
- 2 kudos
- 2 kudos
Hi, I'd like to try the scenario and find a solution. Would you mind sharing a sample file?
- 2 kudos
- 3514 Views
- 1 replies
- 1 kudos
Resolved! Row Level Security while streaming data with Materialized views
Hey,I have the following problem when trying to add row level security to some of our Materialized views. According to the documentation this feature is still in preview - nevertheless, I try to understand why this doesnt work and how it would be sup...
- 3514 Views
- 1 replies
- 1 kudos
- 1 kudos
Hello @Splush, There are 2 ways to create materialized views at the current moment:1. Through Databricks SQL: Use Materialized Views in Databricks SQL. These are the limitations. 2. Through DLT: Materialized View (DLT). All DLT tables are subject to ...
- 1 kudos
- 4732 Views
- 7 replies
- 1 kudos
Autoloader Schema Hint are not taken into consideration in schema file
I am using Autoloader with Schema Inference to automatically load some data into S3.I have one column that is a Map which is overwhelming Autoloader (it tries to infer it as struct -> creating a struct with all keys as properties), so I just use a sc...
- 4732 Views
- 7 replies
- 1 kudos
- 1 kudos
Sorry, I didn't mean that your solution is poorly designed. I was only referring to the one of the main definitions of your bronze layer: You want to have a defined and optimized data layout, which is source-driven at the same time. In other words: ...
- 1 kudos
- 7856 Views
- 3 replies
- 5 kudos
Resolved! Support for Varchar data type
In the official documentation for supported data types, Varchar is not listed. But in the product, we are allowed to create a field of varchar data type. We are building an integration with Databricks and we are confused if we should support operatio...
- 7856 Views
- 3 replies
- 5 kudos
- 5 kudos
Hi @phanindra ,To be precise, Delta Lake format is based on parquet files. For strings, Parquet only has one data type: StringTypeSo, basically varchar(n) data type under the hood is represented as string with check constraint on the length of the st...
- 5 kudos
- 903 Views
- 0 replies
- 1 kudos
Navigating the Future: Key Questions for Implementing Production-Quality GenAI
"The Big Book of Generative AI from Databricks"https://lnkd.in/dR4VuEyQprovides a comprehensive guide to understanding and implementing Generative AI (GenAI) effectively within an enterprise. Here are some critical questions that businesses should co...
- 903 Views
- 0 replies
- 1 kudos
- 18221 Views
- 13 replies
- 10 kudos
Spark tasks too slow and not doing parellel processing
Hi,I have spark job which is processing large data set, its taking too long to process the data. In Spark UI, I can see its running 1 tasks out of 9 tasks. Not sure how to run this in parellel. I have already mentioned auto scaling and providing upto...
- 18221 Views
- 13 replies
- 10 kudos
- 10 kudos
Will it be any different if using Spark but within Azure, i.e. faster?
- 10 kudos
- 2685 Views
- 3 replies
- 2 kudos
showing only a limited number of lines from the CSV file
Expected no of lines is - 16400 Showing only 20 No of records Script spark.conf.set( "REDACTED", "REDACTED" ) # File location file_location = "REDACTED" # Read in the data to dataframe df df = spark.read.format("CSV").option("inferSchema",...
- 2685 Views
- 3 replies
- 2 kudos
- 2 kudos
hi, pls look help mespark.conf.set( "REDACTED", "REDACTED")# File locationfile_location = "REDACTED"# Read in the data to dataframe dfdf = spark.read.format("CSV").option("inferSchema", "true").option("header", "true").option("delimiter", ",")...
- 2 kudos
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