将Elasticsearch安装到虚拟机中

2 年 ago
韵, 科
2 minutes

关于

因为什么都说不上来，所以决定试一试。

环境

    • vagrantで立てたbento/centos-7.2

7.3はなぞのエラーに見舞われたのでパス

安装

只需按照官方指南的基本指示。由于rpm似乎更方便，选择使用rpm进行安装。

安装JRE

由于需要Java运行环境，因此安装openjdk。

$ sudo yum install java-1.8.0-openjdk
$ java -version
openjdk version "1.8.0_111"
OpenJDK Runtime Environment (build 1.8.0_111-b15)
OpenJDK 64-Bit Server VM (build 25.111-b15, mixed mode)

导入GPG密钥

$ sudo rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

手动添加并安装 Elasticsearch 存储库

$ sudo vi /etc/yum.repos.d/elasticsearch.repo
[elasticsearch-5.x]
name=Elasticsearch repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

$ sudo yum install elasticsearch -y
### NOT starting on installation, please execute the following statements to configure elasticsearch service to start automatically using systemd
 sudo systemctl daemon-reload
 sudo systemctl enable elasticsearch.service
### You can start elasticsearch service by executing
 sudo systemctl start elasticsearch.service
  検証中                  : elasticsearch-5.1.1-1.noarch                   1/1

インストール:
  elasticsearch.noarch 0:5.1.1-1

完了しました!

因此，我暂时使用systemd启动。

$ sudo systemctl start elasticsearch
$ sudo systemctl status elasticsearch

错误发生了…

Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot allocate memory' (errno=12)
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: #
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: # There is insufficient memory for the Java Runtime Environment to continue.
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: # Native memory allocation (mmap) failed to map 2060255232 bytes for committing reserved memory.
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: # An error report file with more information is saved as:
Jan 07 11:40:52 localhost.localdomain elasticsearch[3409]: # /tmp/hs_err_pid3409.log
Jan 07 11:40:52 localhost.localdomain systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE

听说内存不够了。（虚拟机内存只有512MB。感觉太小了，所以后来增加到了1GB。）

据说默认情况下需要近2GB的存储空间。

改变内存大小

要更改设定，请修改以下文件。

# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space

#-Xms2g
#-Xmx2g
-Xms1g 
-Xmx1g

当您尝试启动时

$ sudo systemctl start elasticsearch
$ sudo systemctl status elasticsearch
[vagrant@localhost etc]$ sudo systemctl status elasticsearch
● elasticsearch.service - Elasticsearch
   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; disabled; vendor preset: disabled)
   Active: active (running) since 土 2017-01-07 11:53:24 UTC; 44s ago

启动了！安装完成！

请根据以下信息提供一个适当的中文翻译：

参考：

    http://qiita.com/jooex/items/21a26e70f995e91a4e36
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