Using CRaC

CRaC deployment scheme reflects the need to collect data required for Java application initialization and warm-up.

Operation Flow Operation Flow

  1. a Java application (or container) is deployed in the canary environment
    • the app processes canary requests that triggers class loading and JIT compilation
  2. the running application is checkpointed by some mean
    • this creates the image of the JVM and application; the image is considered as a part of a new deployment bundle
  3. the Java application with the image are deployed in the production environment
    • the restored Java process uses loaded classes from and JIT code from the immediately

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