打开bootstrap.mlockall: true无法启动ES

如题打开此设置后，启动es报错：
运行curl http://es-node-1:9200/_nodes/process?pretty
{
  "cluster_name" : "bigdata",
  "nodes" : {
    "F4yt_hm-SMqCXk83hOOXzg" : {
      "name" : "es-1",
      "transport_address" : "192.168.80.110:9300",
      "host" : "192.168.80.110",
      "ip" : "192.168.80.110",
      "version" : "2.3.1",
      "build" : "bd98092",
      "http_address" : "192.168.80.110:9200",
      "process" : {
        "refresh_interval_in_millis" : 1000,
        "id" : 1552,
        "mlockall" : false
      }
    }
  }
}
 
mlockall依然为false，为什么呢？？？？？？？？急求回复