Elasticsearch不会在Ubuntu 16.04上启动？

Question

我正在研究Ubuntu 16.04并从https://www.elastic.co/guide/en/elasticsearch/reference/5.2/deb.html安装弹性搜索，现在启动后它没有导致任何日志是否开始。然后我输入命令sudo service elasticsearch status

● elasticsearch.service - Elasticsearch
   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendo
   Active: failed (Result: exit-code) since Mon 2017-02-20 12:56:37 IST; 2s ago
     Docs: http://www.elastic.co
  Process: 26953 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID_D
  Process: 26950 ExecStartPre=/usr/share/elasticsearch/bin/elasticsearch-systemd
 Main PID: 26953 (code=exited, status=1/FAILURE)

Feb 20 12:56:37 saikiran-ubuntu systemd[1]: Starting Elasticsearch...
Feb 20 12:56:37 saikiran-ubuntu systemd[1]: Started Elasticsearch.
Feb 20 12:56:37 saikiran-ubuntu elasticsearch[26953]: Could not find any executa
Feb 20 12:56:37 saikiran-ubuntu systemd[1]: elasticsearch.service: Main process 
Feb 20 12:56:37 saikiran-ubuntu systemd[1]: elasticsearch.service: Unit entered 
Feb 20 12:56:37 saikiran-ubuntu systemd[1]: elasticsearch.service: Failed with r

我在stackoverflow上尝试了一些解决方案，包括这个sudo chown -R elasticsearch:elasticsearch /var/lib/elasticsearch/ 甚至尝试重新启动服务，但没有任何效果。即使这个修复https://github.com/elastic/elasticsearch/issues/10671也行不通。

有关如何解决这个问题的任何建议？

Answer 1

我想你没有安装/识别java。试试这个来安装Oracle的java：

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer

测试：

java -version

然后运行ES服务：

sudo service elasticsearch start

一切都应该工作了

Answer 2

根据this，尝试设置

在/ etc / default / elasticsearch上START_DAEMON为true

这对我有用。