問題描述

1.系統環境：　ubuntu12.04 elasticsearch5.11 node 7.2.1 npm 4.05 2.安裝elasticsearch之后，可以啟動，能夠訪問http://localhost:9200返回代碼：{ 'name' : 'D7ff-uK', 'cluster_name' : 'elasticsearch', 'cluster_uuid' : 'bl9WuKWVQ6m0TAxHM3UhgA', 'version' : {

'number' : '5.1.1','build_hash' : '5395e21','build_date' : '2016-12-06T12:36:15.409Z','build_snapshot' : false,'lucene_version' : '6.3.0'

}, 'tagline' : 'You Know, for Search'}

只在一臺主機上安裝，只有一個節點。

但是安裝完插件head之后，elasticsearch不能啟動出現報錯.

3．head插件安裝，啟動之后能夠啟動，能夠使用網址訪問到相應的界面。

4.報錯內容為：2016-12-16T07:51:20,581[o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: Property [elasticsearch.version] is missing for plugin [head]

at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.cli.Command.main(Command.java:62) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:89) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:82) ~[elasticsearch-5.1.1.jar:5.1.1]

Caused by: java.lang.IllegalArgumentException: Property [elasticsearch.version] is missing for plugin [head]

at org.elasticsearch.plugins.PluginInfo.readFromProperties(PluginInfo.java:104) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.plugins.PluginsService.getPluginBundles(PluginsService.java:292) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.plugins.PluginsService.<init>(PluginsService.java:131) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.node.Node.<init>(Node.java:294) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.node.Node.<init>(Node.java:229) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Bootstrap$6.<init>(Bootstrap.java:214) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:214) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:306) ~[elasticsearch-5.1.1.jar:5.1.1]at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-5.1.1.jar:5.1.1]... 6 more

這是什么原因造成的呢？求大神們答疑解惑！

問題解答

5.1中，elasticsearch-head

不能放在elasticsearch的 plugins、modules 目錄下

不能使用 elasticsearch-plugin install

直接啟動elasticsearch即可

修改 elasticsearch/config/elasticsearch.yml

添加

http.cors.enabled: truehttp.cors.allow-origin: '*'

下載 elasticsearch-head 或者 git clone 到隨便一個文件夾

安裝nodejs

cd /path/to/elasticsearch-head

npm install -g grunt-cli

npm install

grunt server

http://localhost:9100/

Enjoy it.

一定要記得添加

http.cors.enabled: truehttp.cors.allow-origin: '*'回答3：

遇到同樣問題，mark