I’m in the process of migrating feature tables from Azure Databricks to GCP Databricks and am having trouble listing all feature tables from Azure Databricks.I’ve tried using the FeatureStoreClient API, but it doesn’t have a function to list all feat...
Does databricks have support for writing to same Delta Table from multiple clusters concurrently. I am specifically interested to know if there is any solution for https://github.com/delta-io/delta/issues/41 implemented in databricks OR if you have a...
Please note, the issue noted above [Storage System] Support for AWS S3 (multiple clusters/drivers/JVMs) is for Delta Lake OSS. As noted in this issue as well as Issue 324, as of this writing, S3 lacks putIfAbsent transactional consistency. For Del...
Hi everyone, I wanted to ask if there is any way through which we can ingest logs from GCP databricks to azure log analytics in store-sync fashion. Meaning we will save logs into some cloud bucket lets say, then from there we should be able to send l...
Hi @Retired_mod ,Thanks for help. We decided to develop our own library for logging to azure log analytics. We used buffer for this. We are currently on timer based logs but in future versions we wanted to move to memory based.Thanks,Nikhil
I recently created a table on a cluster in Azure running Databricks Runtime 11.1. The table is partitioned by a "date" column. I enabled column mapping, like this:ALTER TABLE {schema}.{table_name} SET TBLPROPERTIES('delta.columnMapping.mode' = 'nam...
Hi @Retired_mod , I have few queries on Directory Names with Column Mapping. I have this delta table on ADLS and I am trying to read it, but I am getting below error. How can we read delta tables with column mapping enabled with pyspark?Can you pleas...
Federated learning allows you to train machine learning models on decentralized data while ensuring data privacy and security by storing data on local devices and only sharing model updates. This approach assures that raw data never leaves its source...
We currently use the script below, but it is not working in some environments.The environment variable used in the script is not listed in this link Databricks Environment Variables```bash#!/bin/bashecho "Databricks Runtime Version: $DATABRICKS_RUNTI...
If environment variable doesn't work for you, then maybe try with REST API or databrick cli?
I tried these ways they are all not working: Save the json config into a JSON file locally and run databricks cluster-policies create --json cluster-policy.json Error message: Error: invalid character 'c' looking for beginning of valueSave the json ...
Hi @guangyi ,Try to add @ before the name of json filedatabricks cluster-policies create --json @policy.json Also make sure that you're escaping quotation marks like they do in below documenation:Create a new policy | Cluster Policies API | REST API ...
Hello,We are creating an application to read data from Kafka topic send by a source. After we get the data, we do some transformations and send to other Kafka topic. In this process source may send same data twice.Our questions are1. How can we contr...
Hi,For our lakehouse with Unity catalog enabled, we enabled predictive optimization feature for several catalogs to clean up storage with Vacuum. When we describe the catalogs, we can see that predictive optimization is enabled. The system table for ...
Hello as per docs data could take 24 hours to be retrieved, can you confirm if the below requirement are met?Your region must support predictive optimization (see Databricks clouds and regions).
Hi everyone,I have an image saved at DBFS which I want to include in my notebook. I'm using the standard markdown syntax![my image] (/files/my_image.png)which works and the image shows. However, when I export the notebook to HTML, the image disappear...
The issue you're experiencing might be due to the fact that when you export your notebook to HTML, the image from DBFS isn't accessible in the same way as it is within the Databricks environment. The DBFS path isn't accessible from outside Databricks...
I have a catalog ( in unity catalog) containing multiple schemas. I need an AD group to have select permission on all the schemas so at catalog level I granted Select to AD grp. Then, I need to revoke permission on one particular schema in this cat...
This unfortunately is not possible due to the hierarchical mechanism in UC, you will need to grant permissions to the specific schemas directly and not by providing a major permission at the catalog level
Hello , 1 ) Which one is better during large data processing - Temp table vs Temporary view vs temp Table function . 2) How lazy evaluation better for processing ? and which one of the above helps in lazy evaluation
Is there a performance difference between Python UDF vs Scala UDF in pyspark code.
Hi @greyamber ,Yes, there is a difference. Scala would be faster. You read about the reason and benchmark on following blog:Spark UDF — Deep Insights in Performance | by QuantumBlack, AI by McKinsey | QuantumBlack, AI by McKinsey | Medium
Hi @hpant ,I think they are really similiar to overall best practices when in comes to python logging, like having centralize logging configuration, using correct log levels etc.Look for example on below article:10 Best Practices for Logging in Pytho...
Hi Team,We want to create a delta table which have historical load of 10 TB of data, and we expect an incremental refresh of about 15 GB each day.What factors should we take into account for managing such a large volume of data especially cost and pe...
@Phani1 ,All that you've mentioned is correct. Additionally, if you have scenario which require DELETE, UPDATE or MERGE you can turn on deletion vecors:Deletion vectors are a storage optimization feature that can be enabled on Delta Lake tables. By d...
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