Does DLT use one single SparkSession?

[Alex006]

Hi! 

Does DLT use one single SparkSession for all notebooks in a Delta Live Tables Pipeline?

[Kaniz_Fatma · Accepted solution]

Hi @Alex006 , No, a Delta Live Tables (DLT) pipeline does not use a single SparkSession for all notebooks. DLT evaluates and runs all code defined in notebooks but has a different execution model than a notebook 'Run all' command. You cannot rely on the cell-by-cell execution ordering of notebooks when writing Python for DLT.