Databricks Community

No, currently it's not configurable. Synching of notebooks to Git repositories is configurable and can be turned off at the workspace level.

Usage of spark.stop(), sc.stop() , System.exit() in your application can cause this behavior. Databricks manages the context shutdown on its own. Forcefully closing it can cause this abrupt behavior.

Although not a hard limit, it's recommended to keep the number of cells in the notebook less than 100 for better UI experience as well as code readability. Having a really large block of code in a cell defeats the purpose of notebook execution and al...

Yes, it's possible to download files from DBFS. To download the filesFiles stored in /FileStore are accessible in your web browser at https://<databricks-instance-name>.cloud.databricks.com/files/. For example, the file you stored in /FileStore/my-da...

Stats collected on a Delta column are either using for Partitioning Pruning, Data Skipping. See here - https://docs.databricks.com/delta/optimizations/file-mgmt.html#delta-data-skipping for detailsIn additional stats are also used for Metadata only q...

by default a delta table has stats collected on the first 32 columns. This setting can be configured using the following.set spark.databricks.delta.properties.defaults.dataSkippingNumIndexedCols = 3However there's a time trade-off to having a large n...

Optimize merges small files into larger ones and can involve shuffling and creation of large in-memory partitions. Thus its recommended to use a memory optimized executor configuration to prevent spilling to disk. IN additional use of autoscaling wil...

Z-ordering is generally effective on up to 3-4 columns and New clustering algorithm in DBR 7.6 can even go upto 5 columns. However, the key is to Z-order on columns that are typically used in filters/where predicates and joins.