- 868 Views
- 1 replies
- 3 kudos
Cost estimation before query execution similar to google cloud Big Query equivalent of --dry_run
Hi , In databricks do we have a option to estimate cost of query before execution which is similar to Big Query equivalent of --dry_run.Our use case is to estimate cost before execution and get alerted. RegardsNeha
- 868 Views
- 1 replies
- 3 kudos
- 3 kudos
Hello @NehaR, Currently, Databricks does not have a direct equivalent to BigQuery's --dry_run feature for estimating the cost of a query before execution. However, there are some mechanisms and ongoing projects that aim to provide similar functionali...
- 3 kudos
- 20370 Views
- 15 replies
- 5 kudos
Databricks Lakehouse Fundamentals Badge
I have successfully passed the test after completion of the course with 95%. But I have'nt recieved any badge from your side as promised. I have been provided with a certificate which looks fake by itself. I need to post my credentials on Linkedin wi...
- 20370 Views
- 15 replies
- 5 kudos
- 1501 Views
- 2 replies
- 0 kudos
SAS token issue for long running micro-batches
Hi everyone,I'm having an issue with some of our Databricks workloads. We're processing these workloads using the forEachBatch stream processing method. Whenever we are performing a full reload on some of our datasources, we get the following error. ...
- 1501 Views
- 2 replies
- 0 kudos
- 0 kudos
@deecee Can you please confirm there are no external locations or volumes which can lead to this overlap of locations? what you actually have in "some_catalog.some_schema.some_table" and the "abfss://some-container@somestorageaccount.dfs.core.window...
- 0 kudos
- 1261 Views
- 2 replies
- 0 kudos
FileReadException error when creating materialized view reading two schemas
Hi all. I'm getting an error `com.databricks.sql.io.FileReadException` when attempting to create a materialized view which reads tables from two different schemas in the same catalog. Is this just a limitation in databricks or do I potentially have s...
- 1261 Views
- 2 replies
- 0 kudos
- 0 kudos
Hi @kalebkemp ,The error you're encountering (com.databricks.sql.io.FileReadException) when creating a materialized view that reads from two different schemas in the same catalog might not necessarily be a Databricks limitation. It is more likely rel...
- 0 kudos
- 7117 Views
- 6 replies
- 6 kudos
Azure Synapse vs Databricks
Hi there,I would like to know the difference between Azure Databricks and Azure Synapse, which use case is Databricks appropriate and which use case is Synapse appropriate? What are the differences in their functions? What are the differences in thei...
- 7117 Views
- 6 replies
- 6 kudos
- 6 kudos
share you use case i will suggest you about technology difference and which could be benefical for you. I love Data brick due to many awesome feature that help sql developer to programmer(python/Scala) to solve the use case on DataBricks. but if you ...
- 6 kudos
- 858 Views
- 1 replies
- 0 kudos
Getting Different results when I am running the Global Templary table (Transform Query)
We are running a logic in an Azure Databricks notebook using Python with Spark. Initially, we read data from ADLS and load it into a global temporary table to perform data quality checks. We then recreate the same temporary table. Afterward, we use t...
- 858 Views
- 1 replies
- 0 kudos
- 0 kudos
The script is too large to paste in here, so please get in touch with me to to obtain it.
- 0 kudos
- 34990 Views
- 21 replies
- 18 kudos
Resolved! How to limit number of files in each batch in streaming batch processing
Hi,I am running batch job which processes incoming files. I am trying to limit number of files in each batch process so added maxFilesPerTrigger option. But its not working. It processes all incoming files at once.(spark.readStream.format("delta").lo...
- 34990 Views
- 21 replies
- 18 kudos
- 18 kudos
Hi @Sandeep ,Can we usespark.readStream.format("delta").option(""maxBytesPerTrigger", "50G").load(silver_path).writeStream.option("checkpointLocation", gold_checkpoint_path).trigger(availableNow=True).foreachBatch(foreachBatchFunction).start()
- 18 kudos
- 3625 Views
- 5 replies
- 2 kudos
Resolved! Cloud_files function
Hi I'm fairly new to to Databricks and in some examples, blogs,... I see the cloud_files() function being used. But I'm always unable to find any documentation on it? Is there any reason for this? And what is the exact use case for the function? Most...
- 3625 Views
- 5 replies
- 2 kudos
- 2 kudos
Hi @Jefke ,The cloud_files() function in Databricks is part of the Databricks Auto Loader, a tool used for incremental data ingestion from cloud storage like Azure Blob Storage, Amazon S3, or Google Cloud Storage. This function is specifically optimi...
- 2 kudos
- 1082 Views
- 1 replies
- 0 kudos
Workflow Fail safe query
I have a large SQL query that includes multiple Common Table Expressions (CTEs) and joins across various tables, totaling approximately 2,500 lines. I want to ensure that if any part of the query or a specific CTE fails—due to a missing table or colu...
- 1082 Views
- 1 replies
- 0 kudos
- 0 kudos
There are few options you can try. Based of the information shared, I am assuming a skeleton for you complicated query as follows: WITH cte_one AS (SELECT *FROM view_one),-- Other CTEs...-- Your main query logicSELECTFROM cte_one-- Joins and other cl...
- 0 kudos
- 8815 Views
- 7 replies
- 5 kudos
Resolved! Migrating data from synapse to databricks
Hello team,I have a requirement of moving all the table from Azure Synapse (dedicated sql pool) to databricks.we have a data coming up from source to azure data lake frequently.we have Azure data factory to load data (data flow does the basic transfo...
- 8815 Views
- 7 replies
- 5 kudos
- 5 kudos
Hi @Krizofe , Just gone through you deatils and thought our similar experience with Azure Synapse to databrick migration. We faced a similar situation and were initially hesitant, One of the my colleague recommanded to use Travinto Technologies acc...
- 5 kudos
- 1707 Views
- 3 replies
- 0 kudos
Databricks Setting Dynamic Local Configuration Properties
It seems that Databricks is somehow setting the properties of local spark configurations for each notebook. Can someone point me to exactly how and where this is being done? I would like to set the scheduler to utilize a certain pool by default, but ...
- 1707 Views
- 3 replies
- 0 kudos
- 0 kudos
You will need to leverage cluster-level Spark configurations or global init scripts. This will allow you to set "spark.scheduler.poo" property automatically for all workloads on the cluster. You can try navigationg to "Compute", select the cluster y...
- 0 kudos
- 2860 Views
- 1 replies
- 0 kudos
cannot import name 'Buffer' from 'typing_extensions' (/databricks/python/lib/python3.10/site-package
I am trying to add messages to an azure service bus from a notebook. But I get error from title. Any suggestions how to solve this?import asynciofrom azure.servicebus.aio import ServiceBusClientfrom azure.servicebus import ServiceBusMessagefrom azure...
- 2860 Views
- 1 replies
- 0 kudos
- 0 kudos
@Sega2 it sounds like the error occurs because the typing_extensions library version in your Databricks environment is outdated and does not include the Buffer class, which is being imported by one of the Azure libraries. Can you first try: %pip inst...
- 0 kudos
- 1678 Views
- 1 replies
- 0 kudos
Bookmark in pdf
I am creating a pdf using pyspark and trying to make bookmarks for each table in the pages. All the bookmarks end up pointing to the first table in the first page. Please help me out here.
- 1678 Views
- 1 replies
- 0 kudos
- 0 kudos
@Sudic29 can you please share more about what you have implemented so far? This requires dynamically tracking the page number during the PDF creation process. Example in python: from PyPDF2 import PdfReader, PdfWriter def add_bookmarks_to_pdf(inpu...
- 0 kudos
- 1394 Views
- 2 replies
- 0 kudos
AI_QUERY does not accept modelParameters argument
I am trying to pass a column of data from python/pandas to Spark, then run AI_QUERY. However, when I attempt to pass modelParameters (such as temperature), the function fails. Below is a minimal example: import pandas as pdqueries = pd.DataFrame([ ...
- 1394 Views
- 2 replies
- 0 kudos
- 0 kudos
Hi @Walter_C , yes, I am receiving this error when only attempting to set temperature, which should be supported on most if not all models, including the specific models I'm working with. The error message seems to indicate this is a problem with AI_...
- 0 kudos
- 1447 Views
- 1 replies
- 1 kudos
Resolved! Databricks Workflows - Generate Tasks Programmatically
Hi there,I've used databricks workflows to explicitly create tasks with known input parameters (either user input or default parameters). But I'm wondering, what if I want the output of one task to be a list of specific ID's (e.g. id = [7,8,10,13,27]...
- 1447 Views
- 1 replies
- 1 kudos
- 1 kudos
This sounds like a great fit for the For Each task type! Here is the blog, and the documentation
- 1 kudos
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