ElasticSearch安裝部署，基本配置(Ubuntu14.04)

ElasticSearch部署文檔(Ubuntu 14.04)

安裝java

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

安裝ElasticSearch

wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb http://packages.elastic.co/elasticsearch/1.6/debian stable main" | sudo tee -a /etc/apt/sources.list
sudo apt-get update
sudo apt-get install elasticsearch
sudo update-rc.d elasticsearch defaults 95 10

ElasticSearch各個目錄說明

type	description	location
home	Home of elasticsearch installation	/usr/share/elasticsearch
bin	Binary scripts including elasticsearch to start a node	/usr/share/elasticsearch/bin
conf	Configuration files elasticsearch.yml and logging.yml	/etc/elasticsearch
conf	Environment variables including heap size,file descriptors	/etc/default/elasticsearch
data	The location of the data files	/var/lib/elasticsearch/
logs	Log files location	/var/log/elasticsearch
plugins	Plugin files location	/usr/share/elasticsearch/plugins

配置

ES_HEAP_SIZE

# 在/etc/default/elasticsearch中修改：
ES_HEAP_SIZE=4g    #不要超過32g，若是整臺機器只部署ES，一半內存用於Java heap，另外一半給Lucene

File Descriptors

cat <<EOF>> /etc/security/limits.conf
elasticsearch - nofile 65535
EOF

# 在/etc/default/elasticsearch中修改：
MAX_OPEN_FILES=65535

Virtual memory

cat <<EOF>> /etc/sysctl.conf
vm.max_map_count=262144
EOF

sysctl -p

Memory Settings

# 在/etc/elasticsearch/elasticsearch.yml中修改：
bootstrap.mlockall: true
# 在/etc/default/elasticsearch中修改：
MAX_LOCKED_MEMORY=unlimited

其餘

在/etc/elasticsearch/elasticsearch.yml中修改：

# 集羣名稱，同一集羣，名稱要設置相同
cluster.name: elasticsearch_production
# 節點名稱
node.name: elasticsearch_001_data

# 數據路徑，可配置多個，英文逗號分開，注意目錄的權限，保證elasticsearch用戶可寫
path.data: /path/to/data1,/path/to/data2 
# 日誌路徑，注意目錄的權限，保證elasticsearch用戶可寫
path.logs: /path/to/logs
# 插件路徑
path.plugins: /path/to/plugins

# 該屬性是爲了造成一個集羣，有主節點資格並互相鏈接的節點的最小數目
# (number of master-eligible nodes / 2) + 1。 下面的值是在3個有主節點資格的狀況下設定
# 由於節點數，之後能夠增長，或者減小，故該配置能夠動態修改
discovery.zen.minimum_master_nodes: 2

# 恢復控制
gateway.recover_after_nodes: 2
gateway.expected_nodes: 3
gateway.recover_after_time: 5m

#關閉多播，用單播。並指定至少一個能接受單播的主機
discovery.zen.ping.multicast.enabled: false 
discovery.zen.ping.unicast.hosts: ["192.168.2.1:9300", "192.168.2.2:9300", "192.168.2.3:9300"]

啓動

sudo /etc/init.d/elasticsearch start
# 驗證上面一些配置是否配置成功
curl localhost:9200/_nodes/process?pretty

參考連接

• https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html
• https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html#setup-configuration
• https://www.elastic.co/guide/en/elasticsearch/guide/current/_file_descriptors_and_mmap.html
• https://www.elastic.co/guide/en/elasticsearch/guide/current/_important_configuration_changes.html
• https://github.com/grigorescu/Brownian/wiki/ElasticSearch-Configuration