@Override
  protected boolean clusterMode() {
    // this method will be called in the constructor of super class, so we can not return masterless
    // directly here, as it will always be false.
    return !conf.getBoolean(MASTERLESS_CONFIG_NAME, false);
  }
Return pause time configured in {@link HConstants#HBASE_RPC_SHORTOPERATION_RETRY_PAUSE_TIME}}
@return pause time
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java