Brussels / 2 & 3 February 2019


Java Checkpoint/Restore

Java has evolved significantly in the past 20+ years. Users still want to run highly scalable monolithic applications, but now they also want to run in the cloud with fast startup and small footprint. Checkpointing will solve at least half of that problem. I'll show you how to checkpoint your java application and then restore it on a different machine, or several different machines. An application that might take minutes to warm up, can be warmed up, garbage collected, etc and then checkpointed. Users can restore Java processes in ms. I'll give an overview of CRIU (Checkpoint Restore In Userspace) a Linux utility that Java checkpointing is based on, present the proposed Java API, and then demo some interesting use cases.


Christine H Flood