版本：ElasticSearch 1.4.2

wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.4.2.deb
sudo dpkg -i elasticsearch-1.4.2.deb

# ➜ sudo dpkg -i elasticsearch-1.4.2.deb
# Selecting previously unselected package elasticsearch.
# (Reading database ... 44363 files and directories currently installed.)
# Unpacking elasticsearch (from elasticsearch-1.4.2.deb) ...
# Setting up elasticsearch (1.4.2) ...
# Adding system user `elasticsearch' (UID 109) ...
# Adding new user `elasticsearch' (UID 109) with group `elasticsearch' ...
# Not creating home directory `/usr/share/elasticsearch'.
# ### NOT starting elasticsearch by default on bootup, please execute
#  sudo update-rc.d elasticsearch defaults 95 10
# ### In order to start elasticsearch, execute
#  sudo /etc/init.d/elasticsearch start
# Processing triggers for ureadahead ...
# ureadahead will be reprofiled on next reboot

## 设置开机启动 elasticsearch
  sudo update-rc.d elasticsearch defaults

## 获取中文分词插件库(会很慢很慢)
git clone git@github.com:medcl/elasticsearch-rtf.git && cd elasticsearch-rtf
git checkout -b 1.4.0 origin/1.4.0

## 拷贝IK的配置
sudo cp -r config/ik /etc/elasticsearch/
sudo chmod -R a+X /etc/elasticsearch/ik
sudo chmod -R a+r /etc/elasticsearch/ik

## 拷贝IK的插件
sudo mkdir /usr/share/elasticsearch/plugins/ -p
sudo cp -r plugins/analysis-ik /usr/share/elasticsearch/plugins/ik
sudo chmod a+x /usr/share/elasticsearch/plugins/ik
sudo chmod a+r /usr/share/elasticsearch/plugins/ik

## 修改配置文件
#############################
sudo vim /etc/elasticsearch/elasticsearch.yml
## 编辑 /etc/elasticsearch/elasticsearch.yml 文件
##   1. 在文件末尾添加
##         index.analysis.analyzer.ik.type : "ik"
##
##   2. 测试环境下，修改 cluster.name 为局域网内唯一的名字。否则局域网内相同名字的 ES 会自动组成集群

## 测试
#############################
curl -XGET "localhost:9200"
curl -XPUT "localhost:9200/test1"
curl -XPOST "localhost:9200/test1/_analyze?analyzer=ik&pretty=true" -d "中华人民共和国"
### 应该能看到分词后的效果

## 安装完成后的目录结构
#############################
# ➜ tree /etc/elasticsearch
# /etc/elasticsearch
# ├── elasticsearch.yml
# ├── ik
# │   ├── custom
# │   │   ├── ext_stopword.dic
# │   │   ├── mydict.dic
# │   │   ├── single_word_full.dic
# │   │   ├── single_word_low_freq.dic
# │   │   └── sougou.dic
# │   ├── IKAnalyzer.cfg.xml
# │   ├── main.dic
# │   ├── preposition.dic
# │   ├── quantifier.dic
# │   ├── stopword.dic
# │   ├── suffix.dic
# │   └── surname.dic
# └── logging.yml
#
# 2 directories, 14 files

# ➜ tree /usr/share/elasticsearch/plugins
# /usr/share/elasticsearch/plugins
# └── ik
#     ├── commons-codec-1.6.jar
#     ├── commons-logging-1.1.3.jar
#     ├── elasticsearch-analysis-ik-1.2.9.jar
#     ├── httpclient-4.3.5.jar
#     └── httpcore-4.3.2.jar
#
# 1 directory, 5 files