[Solved] Given these models and dependencies:model_a.sql (no dependencies) model_b.sql (depends on model_a) model_c.sql (depends on model_a) model_d.... | dbt

dbt - Performance Optimization

Given these models and dependencies:

model_a.sql (no dependencies)
model_b.sql (depends on model_a)
model_c.sql (depends on model_a)
model_d.sql (depends on model_b and model_c)

If you run dbt run --threads 2, which models can run in parallel first?

Amodel_a only

Bmodel_b and model_c

Cmodel_a and model_b

Dmodel_c and model_d

Step-by-Step Solution

Solution:

Step 1: Identify models without dependencies
Only model_a has no dependencies, so it must run first.
Step 2: Understand parallelism with threads=2
Since only model_a is ready, it runs alone first. After it finishes, model_b and model_c can run in parallel.
Final Answer:
model_a only -> Option A
Quick Check:
First run models without dependencies = model_a [OK]

Quick Trick: Run models without dependencies first, then parallelize [OK]

Common Mistakes:

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