老师您好，我没有修改docker-compose.yaml文件，直接启动的，es启动9200端口正常，但是kibana启动失败，cerebro无法链接 http://elasticsearch:9200。
一、kibana启动失败。
kibana7 | {"type":"log","@timestamp":"2019-06-25T10:18:08Z","tags":["fatal","root"],"pid":1,"message":"{ Error: Request Timeout after 30000ms\n at /usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:355:15\n at Timeout.<anonymous> (/usr/share/kibana/node_modules/elasticsearch/src/lib/transport.js:384:7)\n at ontimeout (timers.js:436:11)\n at tryOnTimeout (timers.js:300:5)\n at listOnTimeout (timers.js:263:5)\n at Timer.processTimers (timers.js:223:10)\n status: undefined,\n displayName: 'RequestTimeout',\n message: 'Request Timeout after 30000ms',\n body: undefined,\n isBoom: true,\n isServer: true,\n data: null,\n output:\n { statusCode: 503,\n payload:\n { statusCode: 503,\n error: 'Service Unavailable',\n message: 'Request Timeout after 30000ms' },\n headers: {} },\n reformat: [Function],\n [Symbol(SavedObjectsClientErrorCode)]: 'SavedObjectsClient/esUnavailable' }"}
kibana7 |
kibana7 | FATAL Error: Request Timeout after 30000ms
kibana7 |
kibana7 exited with code 1

二、cerebro 链接 http://elasticsearch:9200 报错
Unexpected response status: [503]

解决了碰到的几个坑，我是用vagrant启动的虚拟机，然后装的docker
1.内存要设置大点，默认内存不够
2.max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]编辑 /etc/sysctl.conf，追加以下内容：vm.max_map_count=262144保存后，执行：sysctl -p重新启动，成功。

现在还有一个问题没有解决，打开kibana,是空白界面

es集群起不来。报错如下：
es7_01 | "stacktrace": ["org.elasticsearch.discovery.MasterNotDiscoveredException: null",
es7_01 | "at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction$4.onTimeout(TransportMasterNodeAction.java:259) [elasticsearch-7.1.0.jar:7.1.0]",
es7_01 | "at org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:322) [elasticsearch-7.1.0.jar:7.1.0]",
es7_01 | "at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:249) [elasticsearch-7.1.0.jar:7.1.0]",
es7_01 | "at org.elasticsearch.cluster.service.ClusterApplierService$NotifyTimeout.run(ClusterApplierService.java:555) [elasticsearch-7.1.0.jar:7.1.0]",
es7_01 | "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:681) [elasticsearch-7.1.0.jar:7.1.0]",
es7_01 | "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]",
es7_01 | "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]",
es7_01 | "at java.lang.Thread.run(Thread.java:835) [?:?]"] }
es7_01 | {"type": "server", "timestamp": "2019-07-03T08:44:36,151+0000", "level": "WARN", "component": "o.e.c.c.ClusterFormationFailureHelper", "cluster.name": "geektime", "node.name": "es7_01", "message": "master not discovered or elected yet, an election requires a node with id [-NtPuq1vRzGRi8CKL1st-A], have discovered [] which is not a quorum; discovery will continue using [] from hosts providers and [{es7_01}{Rl60TSJ3SUqhrb8hl0B0-Q}{8iiqMNQMSreXXgbyzWylfg}{172.19.0.3}{172.19.0.3:9300}{ml.machine_memory=2096164864, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 2, last-accepted version 75 in term 2" }

老师好，尝试了好多次7.2版本的配置，只能起来一个node,第二个节点总是提示选主问题。
elasticsearch显示:{"type":"master_not_discovered_exception","reason":null}
docker集群显示:es72_02 | {"type": "server", "timestamp": "2019-08-05T01:01:27,200+0000", "level": "WARN", "component": "o.e.c.c.ClusterFormationFailureHelper", "cluster.name": "geektime", "node.name": "es72_02", "message": "master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [es72_01, es72_02] to bootstrap a cluster: have discovered []; discovery will continue using [192.168.32.2:9300] from hosts providers and [{es72_02}{sgHR6nTtRBCOizQ8xytmcA}{QiWV227ZS_iwzsD_d9PIRQ}{elasticsearch}{192.168.32.5:9300}{ml.machine_memory=4139405312, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 0, last-accepted version 0 in term 0" }

只要是配置1个节点就可以:
- discovery.seed_hosts=es72_01
- network.publish_host=elasticsearch
- cluster.initial_master_nodes=es72_01
多个节点就报错:
- discovery.seed_hosts=es72_01,es72_02
- network.publish_host=elasticsearch
- cluster.initial_master_nodes=es72_01,es72_02
请老师帮助解答一下，MAC环境，本地安装，没有使用任何其他虚拟机。

老师用docker-compose.yaml有问题，发现启动完，一会就退出。71和7.2版本都是这个问题，目前没有头绪，请老师给予指导，多谢。
启动：
 Name Command State Ports
---------------------------------------------------------------------------
cerebro /opt/cerebro/bin/cerebro - ... Up 0.0.0.0:9000->9000/tcp
es7_01 /usr/local/bin/docker-entr ... Up 0.0.0.0:9200->9200/tcp, 9300/tcp
es7_02 /usr/local/bin/docker-entr ... Up 9200/tcp, 9300/tcp
kibana7 /usr/local/bin/kibana-docker Up 0.0.0.0:5601->5601/tcp
过几十秒后：
cerebro /opt/cerebro/bin/cerebro - ... Up javascript:; 0.0.0.0:9000->9000/tcp
es7_01 /usr/local/bin/docker-entr ... Up 0.0.0.0:9200->9200/tcp, 9300/tcp
es7_02 /usr/local/bin/docker-entr ... Exit 137
kibana7 /usr/local/bin/kibana-docker Up 0.0.0.0:5601->5601/tcp
错误日志：
{"type": "server", "timestamp": "2019-06-27T09:56:02,465+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "geektime", "node.name": "es7_02", "message": "failed to resolve host [es7_01]" ,

.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]",
es7_02 | "at java.lang.Thread.run(Thread.java:835) [?:?]"] }
es7_02 | {"type": "server", "timestamp": "2019-06-27T09:56:03,496+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "geektime", "node.name": "es7_02", "message": "failed to resolve host [es7_01]" ,
es7_02 | "stacktrace": ["java.net.UnknownHostException: es7_01: Name or service not known",
es7_02 | "at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[?:?]",

es7_02 | {"type": "server", "timestamp": "2019-06-27T09:40:35,984+0000", "level": "WARN", "component": "o.e.d.SeedHostsResolver", "cluster.name": "geektime", "node.name": "es7_02", "message": "failed to resolve host [es7_01]" ,
es7_02 | "stacktrace": ["java.net.UnknownHostException: es7_01",
es7_02 | "at java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) ~[?:?]",
es7_02 | "at java.net.InetAddress.getAllByName0(InetAddress.java:1505) ~[?:?]",
es7_02 | "at java.net.InetAddress.getAllByName(InetAddress.java:1364) ~[?:?]",
es7_02 | "at java.net.InetAddress.getAllByName(InetAddress.java:1298) ~[?:?]",
es7_02 | "at org.elasticsearch.transport.TcpTransport.parse(TcpTransport.java:528) ~[elasticsearch-7.2.0.jar:7.2.0]",
es7_02 | "at org.elasticsearch.transport.TcpTransport.addressesFromString(TcpTransport.java:470) ~[elasticsearch-7.2.0.jar:7.2.0]",
es7_02 | "at org.elasticsearch.transport.TransportService.addressesFromString(TransportService.java:754) ~[elasticsearch-7.2.0.jar:7.2.0]",
es7_02 | "at org.elasticsearch.discovery.SeedHostsResolver.lambda$resolveHostsLists$0(SeedHostsResolver.java:141) ~[elasticsearch-7.2.0.jar:7.2.0]",
es7_02 | "at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]",
es7_02 | "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:688) ~[elasticsearch-7.2.0.jar:7.2.0]",
es7_02 | "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]",
es7_02 | "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]",
es7_02 | "at java.lang.Thread.ru

老师希望能得到您的帮助，我是windos系统用vm虚拟机centos7跑的
执行docker-compose up命令后
执行一段时间都正常显示，但是之后就会出现
kibana7 | {"type":"log","@timestamp":"2019-07-23T07:55:05Z","tags":["warning","elasticsearch","admin"],"pid":1,"message":"No living connections"}
kibana7 | {"type":"log","@timestamp":"2019-07-23T07:55:06Z","tags":["warning","elasticsearch","admin"],"pid":1,"message":"Unable to revive connection: http://ela
sticsearch:9200/"}
浏览器访问5601出现Kibana server is not ready yet
查了很多，还是没能解决，希望老师指点一下。谢谢您了