default void postSetRegionServerQuota(final ObserverContext<MasterCoprocessorEnvironment> ctx,
    final String regionServer, final GlobalQuotaSettings quotas) throws IOException {
  }
Called after the quota for the region server is stored.
@param ctx          the environment to interact with the framework and master
@param regionServer the name of the region server
@param quotas       the resulting quota for the region server
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/MasterObserver.java