ubuntu16.04安裝ElasticSearch

初始配置

配置時間同步

關閉防火牆

ufw disable

設置ulimit

見 https://my.oschina.net/u/914655/blog/3067520

修改max_map_count值
在linux系統上，elasticsearch默認使用hybrid mmapfs / niofs來存儲索引文件，所以操做系統主要會經過ｍｍap來限制存儲的空間，所以若是存儲空間滿了，那麼會拋出異常，咱們能夠使用以下命令來更改設置。

臨時設置：
sysctl -w vm.max_map_count=655360
vm.max_map_count = 655360

永久設置：
echo 'vm.max_map_count=655360' >> /etc/sysctl.conf
sysctl -p
vm.max_map_count = 655360

安裝 

cd /app
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.1-linux-x86_64.tar.gz
tar zxvf elasticsearch-7.3.1-linux-x86_64.tar.gz
cd elasticsearch-7.3.1/

# es不能以root用戶運行
useradd elasticsearch

cd /data
mkdir elastic
cd elastic
mkdir data
mkdir logs

chown -R elasticsearch.elasticsearch /app/elasticsearch-7.3.1
chown -R elasticsearch.elasticsearch /data/elastic

配置文件

# 根據機器配置修改jvm參數
vim config/jvm.options
-Xms12g
-Xmx12g

# vim config/elasticsearch.yml
# 集羣名稱，要同樣
cluster.name: jp-es
# 集羣裏節點名稱，要惟一，通常以數字自增
node.name: ES-node1
# 指定節點的部落屬性，這是一個比集羣更大的範圍
node.attr.rack: r1
# 是否可稱爲master節點
node.master: true
# 是否存儲數據
node.data: true
# 數據路徑
path.data: /data/elastic/data
# 日誌路徑
path.logs: /data/elastic/logs
# 容許外部訪問
network.host: 0.0.0.0
# 訪問端口
http.port: 9200

#
discovery.seed_hosts: ["10.13.6.9","10.13.6.10","10.13.6.11","10.13.6.12","10.13.6.13"]
# 啓動集羣時,參與master選舉的節點
cluster.initial_master_nodes: ["ES-node1", "ES-node2", "ES-node3"]

其餘節點注意node.name，node.master便可

啓動

su elasticsearch

bin/elasticsearch -d

測試
 

curl http://localhost:9200
{
  "name" : "ES-node1",
  "cluster_name" : "jp-es",
  "cluster_uuid" : "KiRH05UbTTC25NPOr2zDRQ",
  "version" : {
    "number" : "7.3.1",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "4749ba6",
    "build_date" : "2019-08-19T20:19:25.651794Z",
    "build_snapshot" : false,
    "lucene_version" : "8.1.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}


curl http://localhost:9200/_cluster/health
{
    "cluster_name":"jp-es",
    "status":"green",
    "timed_out":false,
    "number_of_nodes":5,
    "number_of_data_nodes":5,
    "active_primary_shards":0,
    "active_shards":0,
    "relocating_shards":0,
    "initializing_shards":0,
    "unassigned_shards":0,
    "delayed_unassigned_shards":0,
    "number_of_pending_tasks":0,
    "number_of_in_flight_fetch":0,
    "task_max_waiting_in_queue_millis":0,
    "active_shards_percent_as_number":100
}