Map<TableName, SpaceViolationPolicyEnforcement> getLocallyCachedPolicies() {
    return Collections.unmodifiableMap(locallyCachedPolicies);
  }
Returns an unmodifiable version of the policy enforcements that were cached because they are
not in violation of their quota.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/ActivePolicyEnforcement.java