@Override
  public <A extends ClusterManagementOperation<V>, V extends OperationResult> OperationState<A, V> get(
      String opId) {
    OperationState<A, V> result = (OperationState<A, V>) region.get(opId);
    if (result != null) {
      result = result.createCopy();
    }
    return result;
  }
This store uses a geode region to implement the storage of operation state.
It is a REPLICATE region so that the storage will be shared on each member
that hosts this region. Currently each locator hosts this region.
geode-core/src/main/java/org/apache/geode/management/internal/operation/RegionOperationStateStore.java