操作過程：

vim config/elasticsearch.yml，在文件的最后加上?

network.host: 0.0.0.0 #注意“:”后要有空格和語句前面有空格

錯(cuò)誤提示：

[2018-05-24T14:35:29,980][INFO ][o.e.n.Node ] [] initializing ...[2018-05-24T14:35:30,009][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/home/es/elasticsearch-6.2.4/data/elasticsearch]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])? at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.2.4.jar:6.2.4] at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.2.4.jar:6.2.4] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.2.4.jar:6.2.4]Caused by: java.lang.IllegalStateException: failed to obtain node locks, tried [[/home/es/elasticsearch-6.2.4/data/elasticsearch]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])? at org.elasticsearch.env.NodeEnvironment.(NodeEnvironment.java:244) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.node.Node.(Node.java:264) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.node.Node.(Node.java:246) ~[elasticsearch-6.2.4.jar:6.2.4] at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:213) ~[elasticsearch-6.2.4.jar:6.2.4]

? ? ? ? at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:213) ~[elasticsearch-6.2.4.jar:6.2.4]

? ? ? ? at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) ~[elasticsearch-6.2.4.jar:6.2.4]

? ? ? ? at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.2.4.jar:6.2.4]

? ? ? ? ... 6 more

解決：

增加：transport.host: localhost

transport.tcp.port: 9300

http.port: 9200

總結(jié)：

應(yīng)該是新版本的更改，完整的語句是增加?

transport.host: localhost

transport.tcp.port: 9300

http.port: 9200

network.host: 0.0.0.0