public boolean isOverflow() {
    return name().contains("OVERFLOW");
  }
A REPLICATE_PROXY has no local state and forwards all operations (except queries) to a
REPLICATE or a REPLICATE_PERSISTENT that exists in its peers. Queries will be executed on this
PROXY region. The actual RegionAttributes for a REPLICATE_PROXY region set the
{@code DataPolicy} to {@code DataPolicy.EMPTY} and {@code Scope} to
{@code Scope.DISTRIBUTED_ACK}.
geode-core/src/main/java/org/apache/geode/cache/RegionShortcut.java