elasticsearch docker中的ElasticSearch群集始终在3节点配置中关闭一个主机

我在三个docker容器docker-compose.yml中运行elasticsearch集群，如下所示

当我运行其中两个时，可以设置集群，状态为绿色，但当我启动第三个时，集群中的一个节点被强制关闭（docker容器退出），并且在shutdown elasticsearch节点中没有记录错误消息

节点1 docker-compose.yml：

version: '2'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
container_name: elasticsearch1
environment:
  - cluster.name=MoquiElasticSearch
  - bootstrap.memory_lock=true
  - discovery.zen.minimum_master_nodes=2
  - xpack.security.enabled=false
  - transport.publish_host=192.168.2.101
  - http.publish_host=192.168.2.101
  - discovery.zen.ping.unicast.hosts=192.168.2.101:9301,192.168.2.101:9302
  - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
  - TZ=Asia/Shanghai
ulimits:
  memlock:
    soft: -1
    hard: -1
mem_limit: 1g
ports:
  - 9200:9200
  - 9300:9300

节点2 docker-compose.yml

version: '2'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
container_name: elasticsearch2
environment:
  - cluster.name=MoquiElasticSearch
  - bootstrap.memory_lock=true
  - discovery.zen.minimum_master_nodes=2
  - xpack.security.enabled=false
  - transport.publish_host=192.168.2.101
  - transport.publish_port=9301
  - transport.tcp.port=9301
  - http.publish_host=192.168.2.101
  - http.publish_port=9201
  - http.port=9201
  - discovery.zen.ping.unicast.hosts=192.168.2.101:9300,192.168.2.101:9302
  - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
  - TZ=Asia/Shanghai
ulimits:
  memlock:
    soft: -1
    hard: -1
mem_limit: 1g
ports:
  - 9201:9201
  - 9301:9301

version: '2'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
container_name: elasticsearch3
environment:
  - cluster.name=MoquiElasticSearch
  - bootstrap.memory_lock=true
  - discovery.zen.minimum_master_nodes=2
  - xpack.security.enabled=false
  - transport.publish_host=192.168.2.101
  - transport.publish_port=9302
  - transport.tcp.port=9302
  - http.publish_host=192.168.2.101
  - http.publish_port=9202
  - http.port=9202
  - discovery.zen.ping.unicast.hosts=192.168.2.101:9300,192.168.2.101:9301
  - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
  - TZ=Asia/Shanghai
ulimits:
  memlock:
    soft: -1
    hard: -1
mem_limit: 1g
ports:
  - 9202:9202
  - 9302:9302

节点3 docker-compose.yml

version: '2'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
container_name: elasticsearch2
environment:
  - cluster.name=MoquiElasticSearch
  - bootstrap.memory_lock=true
  - discovery.zen.minimum_master_nodes=2
  - xpack.security.enabled=false
  - transport.publish_host=192.168.2.101
  - transport.publish_port=9301
  - transport.tcp.port=9301
  - http.publish_host=192.168.2.101
  - http.publish_port=9201
  - http.port=9201
  - discovery.zen.ping.unicast.hosts=192.168.2.101:9300,192.168.2.101:9302
  - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
  - TZ=Asia/Shanghai
ulimits:
  memlock:
    soft: -1
    hard: -1
mem_limit: 1g
ports:
  - 9201:9201
  - 9301:9301

version: '2'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
container_name: elasticsearch3
environment:
  - cluster.name=MoquiElasticSearch
  - bootstrap.memory_lock=true
  - discovery.zen.minimum_master_nodes=2
  - xpack.security.enabled=false
  - transport.publish_host=192.168.2.101
  - transport.publish_port=9302
  - transport.tcp.port=9302
  - http.publish_host=192.168.2.101
  - http.publish_port=9202
  - http.port=9202
  - discovery.zen.ping.unicast.hosts=192.168.2.101:9300,192.168.2.101:9301
  - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
  - TZ=Asia/Shanghai
ulimits:
  memlock:
    soft: -1
    hard: -1
mem_limit: 1g
ports:
  - 9202:9202
  - 9302:9302

---

这是由于Mac上的docker内存有限（为2.5G），无法提供3个节点，因此其中一个节点被迫关闭

---

增加docker engine的专用内存后，所有3个节点都已启动并运行，elasticsearch cluster呈绿色

您确定主机上有足够的内存吗？是的，我在MacBook pro 16G上运行了它们。仅在启动弹性节点之前使用8G。无论我如何改变启动3个节点的顺序，我都可以重现这个问题。瓦尔，谢谢你的提醒。我发现Mac上的docker现在可以选择限制docker专用的内存（2.5G），这就是为什么只有两个节点可以成功运行的原因。在我将其更改为4.5G之后，所有三个节点都在运行，集群是绿色的。是的，我接下来要提到这一点，很高兴您能理解；-）