void updateContainerPhysicalStorageUsageAndStoreKey(short accountId, short containerId, long usage, long newKey) {
    updateNestedMapHelper(containerPhysicalStorageUsage, accountId, containerId, usage);
    containerNumberOfStoreKeys.computeIfAbsent(accountId, k -> new HashMap<>())
        .compute(containerId, (k, v) -> v == null ? newKey : v.longValue() + newKey);
  }
Update the physical storage usage and store key for the givne account and container.
@param accountId The account id
@param containerId The container id
@param usage The new physical storage usage
@param newKey The number of new keys to add
ambry-store/src/main/java/com/github/ambry/store/ScanResults.java