cancel
Showing results for 
Search instead for 
Did you mean: 
Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
cancel
Showing results for 
Search instead for 
Did you mean: 

Garbage Collection optimization

User16826994223
Honored Contributor III

I have a case where garbage collection is taking much time and I want to optimize it for better performance

1 ACCEPTED SOLUTION

Accepted Solutions

User16826994223
Honored Contributor III

You can use smaller instances with less ram than the VMs with higher ram, However there will be a trade off if there are lots of shuffle involve in the operation, because more small memory vms will increase the shuffling operation time

View solution in original post

2 REPLIES 2

User16826994223
Honored Contributor III

You can use smaller instances with less ram than the VMs with higher ram, However there will be a trade off if there are lots of shuffle involve in the operation, because more small memory vms will increase the shuffling operation time

sean_owen
Honored Contributor II
Honored Contributor II

You can also tune the JVM's GC parameters directly, if you mean the pauses are too long. Set "spark.executor.extraJavaOptions", but it does require knowing a thing or two about how to tune for what performance goal.

Join 100K+ Data Experts: Register Now & Grow with Us!

Excited to expand your horizons with us? Click here to Register and begin your journey to success!

Already a member? Login and join your local regional user group! If there isn’t one near you, fill out this form and we’ll create one for you to join!