/**
  * Records all undeployed tasks.
  *
  * @param nodeId Left node ID.
  * @param undeployed Undeployed deployments.
  */
 private void recordUndeployed(@Nullable UUID nodeId, Collection<SharedDeployment> undeployed) {
   if (!F.isEmpty(undeployed)) for (SharedDeployment d : undeployed) d.recordUndeployed(nodeId);
 }