The CRaC (Coordinated Restore at Checkpoint) Project researches the coordination of Java programs with mechanisms to checkpoint (make an image of, snapshot) a Java instance while executing. Restoring from the image could solve some of the problems with the start-up and warm-up times. The primary aim of the Project is to develop a new standard mechanism-agnostic API to notify Java programs about the checkpoint and restore events. Other research activities will include, but will not be limited to, integration with existing checkpoint/restore mechanisms and development of new ones, changes to JVM and JDK to make images smaller and ensure they are correct.
Use the CRaC library in your project to handle checkpoint creation and restore from a checkpoint.
package my.app;
import org.crac.Context;
import org.crac.Core;
import org.crac.Resource;
public class MyClass implements Resource {
public MyClass() {
Core.getGlobalContext().register(this);
}
@Override
public void beforeCheckpoint(Context<? extends Resource> context) {
/* ... */
}
@Override
public void afterRestore(Context<? extends Resource> context) {
/* ... */
}
}
