EFK教程-ElasticSearch角色分離-創(chuàng)新互聯(lián)

EFK教程 - ElasticSearch角色分離

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通過將elasticsearch的data、ingest、master角色進(jìn)行分離,搭建起高性能+高可用的ES架構(gòu)

作者:“發(fā)顛的小狼”,歡迎轉(zhuǎn)載與投稿


目錄

? 用途
? 架構(gòu)
? 步驟說明
? elasticsearch-data部署
? elasticsearch-ingest部署
? elasticsearch-master部署


用途

在第一篇《EFK教程 - 快速入門指南》中,闡述了EFK的安裝部署,其中ES的架構(gòu)為三節(jié)點(diǎn),即master、ingest、data角色同時(shí)部署在三臺(tái)服務(wù)器上。

在本文中,將進(jìn)行角色分離部署,并且每個(gè)角色分別部署三節(jié)點(diǎn),在實(shí)現(xiàn)性能大化的同時(shí)保障高可用。

? elasticsearch的master節(jié)點(diǎn):用于調(diào)度,采用普通性能服務(wù)器來部署
? elasticsearch的ingest節(jié)點(diǎn):用于數(shù)據(jù)預(yù)處理,采用性能好的服務(wù)器來部署
? elasticsearch的data節(jié)點(diǎn):用于數(shù)據(jù)落地存儲(chǔ),采用存儲(chǔ)性能好的服務(wù)器來部署

若不知道去哪找《EFK教程 - 快速入門指南》,可在主流搜索引擎里搜索:
小慢哥 EFK教程 快速入門指南
或者
小慢哥 EFK教程 基于多節(jié)點(diǎn)ES的EFK安裝部署配置

架構(gòu)

EFK教程 - ElasticSearch角色分離

服務(wù)器配置

EFK教程 - ElasticSearch角色分離

注意:此處的架構(gòu)是之前的文章《EFK教程 - 快速入門指南》的拓展,因此請(qǐng)先按照《EFK教程 - 快速入門指南》完成部署


步驟說明

1?? 部署3臺(tái)data節(jié)點(diǎn),加入原集群
2?? 部署3臺(tái)ingest節(jié)點(diǎn),加入原集群
3?? 將原有的es索引遷移到data節(jié)點(diǎn)
4?? 將原有的es節(jié)點(diǎn)改造成master節(jié)點(diǎn)


elasticsearch-data部署

之前已完成了基礎(chǔ)的elasticsearch架構(gòu),現(xiàn)需要新增三臺(tái)存儲(chǔ)節(jié)點(diǎn)加入集群,同時(shí)關(guān)閉master和ingest功能

elasticsearch-data安裝:3臺(tái)均執(zhí)行相同的安裝步驟

tar -zxvf elasticsearch-7.3.2-linux-x86_64.tar.gz
mv elasticsearch-7.3.2 /opt/elasticsearch
useradd elasticsearch -d /opt/elasticsearch -s /sbin/nologin
mkdir -p /opt/logs/elasticsearch
chown elasticsearch.elasticsearch /opt/elasticsearch -R
chown elasticsearch.elasticsearch /opt/logs/elasticsearch -R
# 數(shù)據(jù)盤需要elasticsearch寫權(quán)限
chown elasticsearch.elasticsearch /data/SAS -R

# 限制一個(gè)進(jìn)程可以擁有的VMA(虛擬內(nèi)存區(qū)域)的數(shù)量要超過262144,不然elasticsearch會(huì)報(bào)max virtual memory areas vm.max_map_count [65535] is too low, increase to at least [262144]
echo "vm.max_map_count = 655350" >> /etc/sysctl.conf
sysctl -p

elasticsearch-data配置

? 192.168.1.51 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.51
# 數(shù)據(jù)盤位置,如果有多個(gè)硬盤位置,用","隔開
path.data: /data/SAS
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.51

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 關(guān)閉ingest功能
node.ingest: false
# 開啟data功能
node.data: true

? 192.168.1.52 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.52
# 數(shù)據(jù)盤位置,如果有多個(gè)硬盤位置,用","隔開
path.data: /data/SAS
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.52

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 關(guān)閉ingest功能
node.ingest: false
# 開啟data功能
node.data: true

? 192.168.1.53 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.53
# 數(shù)據(jù)盤位置,如果有多個(gè)硬盤位置,用","隔開
path.data: /data/SAS
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.53

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 關(guān)閉ingest功能
node.ingest: false
# 開啟data功能
node.data: true

elasticsearch-data啟動(dòng)

sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

elasticsearch集群狀態(tài)

curl "http://192.168.1.31:9200/_cat/health?v"

EFK教程 - ElasticSearch角色分離

elasticsearch-data狀態(tài)

curl "http://192.168.1.31:9200/_cat/nodes?v"

EFK教程 - ElasticSearch角色分離

elasticsearch-data參數(shù)說明

status: green  # 集群健康狀態(tài)
node.total: 6  # 有6臺(tái)機(jī)子組成集群
node.data: 6  # 有6個(gè)節(jié)點(diǎn)的存儲(chǔ)
node.role: d  # 只擁有data角色
node.role: i  # 只擁有ingest角色
node.role: m  # 只擁有master角色
node.role: mid  # 擁master、ingest、data角色

elasticsearch-ingest部署

現(xiàn)需要新增三臺(tái)ingest節(jié)點(diǎn)加入集群,同時(shí)關(guān)閉master和data功能

elasticsearch-ingest安裝:3臺(tái)es均執(zhí)行相同的安裝步驟

tar -zxvf elasticsearch-7.3.2-linux-x86_64.tar.gz
mv elasticsearch-7.3.2 /opt/elasticsearch
useradd elasticsearch -d /opt/elasticsearch -s /sbin/nologin
mkdir -p /opt/logs/elasticsearch
chown elasticsearch.elasticsearch /opt/elasticsearch -R
chown elasticsearch.elasticsearch /opt/logs/elasticsearch -R

# 限制一個(gè)進(jìn)程可以擁有的VMA(虛擬內(nèi)存區(qū)域)的數(shù)量要超過262144,不然elasticsearch會(huì)報(bào)max virtual memory areas vm.max_map_count [65535] is too low, increase to at least [262144]
echo "vm.max_map_count = 655350" >> /etc/sysctl.conf
sysctl -p

elasticsearch-ingest配置

? 192.168.1.41 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.41
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.41

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 開啟ingest功能
node.ingest: true
# 關(guān)閉data功能
node.data: false

? 192.168.1.42 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.42
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.42

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 開啟ingest功能
node.ingest: true
# 關(guān)閉data功能
node.data: false

? 192.168.1.43 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.43
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.43

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

# 關(guān)閉master功能
node.master: false
# 開啟ingest功能
node.ingest: true
# 關(guān)閉data功能
node.data: false

elasticsearch-ingest啟動(dòng)

sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

elasticsearch集群狀態(tài)

curl "http://192.168.1.31:9200/_cat/health?v"

elasticsearch-ingest狀態(tài)

EFK教程 - ElasticSearch角色分離

curl "http://192.168.1.31:9200/_cat/nodes?v"

EFK教程 - ElasticSearch角色分離

elasticsearch-ingest參數(shù)說明

status: green  # 集群健康狀態(tài)
node.total: 9  # 有9臺(tái)機(jī)子組成集群
node.data: 6  # 有6個(gè)節(jié)點(diǎn)的存儲(chǔ)
node.role: d  # 只擁有data角色
node.role: i  # 只擁有ingest角色
node.role: m  # 只擁有master角色
node.role: mid  # 擁master、ingest、data角色

elasticsearch-master部署

首先,將上一篇《EFK教程 - 快速入門指南》中部署的3臺(tái)es(192.168.1.31、192.168.1.32、192.168.1.33)改成只有master的功能, 因此需要先將這3臺(tái)上的索引數(shù)據(jù)遷移到本次所做的data節(jié)點(diǎn)中

1?? 索引遷移:一定要做這步,將之前的索引放到data節(jié)點(diǎn)上

curl -X PUT "192.168.1.31:9200/*/_settings?pretty" -H 'Content-Type: application/json' -d'
{
  "index.routing.allocation.include._ip": "192.168.1.51,192.168.1.52,192.168.1.53"
}'

2?? 確認(rèn)當(dāng)前索引存儲(chǔ)位置:確認(rèn)所有索引不在192.168.1.31、192.168.1.32、192.168.1.33節(jié)點(diǎn)上

curl "http://192.168.1.31:9200/_cat/shards?h=n"

EFK教程 - ElasticSearch角色分離

elasticsearch-master配置

注意事項(xiàng):修改配置,重啟進(jìn)程,需要一臺(tái)一臺(tái)執(zhí)行,要確保第一臺(tái)成功后,再執(zhí)行下一臺(tái)。重啟進(jìn)程的方法:由于上一篇文章《EFK教程 - 快速入門指南》里,是執(zhí)行命令跑在前臺(tái),因此直接ctrl - c退出再啟動(dòng)即可,啟動(dòng)命令如下

sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

? 192.168.1.31 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.31
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.31

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

#開啟master功能
node.master: true
#關(guān)閉ingest功能
node.ingest: false
#關(guān)閉data功能
node.data: false

? 192.168.1.32 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.32
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.32

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

#開啟master功能
node.master: true
#關(guān)閉ingest功能
node.ingest: false
#關(guān)閉data功能
node.data: false

? 192.168.1.33 /opt/elasticsearch/config/elasticsearch.yml

cluster.name: my-application
node.name: 192.168.1.33
path.logs: /opt/logs/elasticsearch
network.host: 192.168.1.33

discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]
cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]
http.cors.enabled: true
http.cors.allow-origin: "*"

#開啟master功能
node.master: true
#關(guān)閉ingest功能
node.ingest: false
#關(guān)閉data功能
node.data: false

elasticsearch集群狀態(tài)

curl "http://192.168.1.31:9200/_cat/health?v"

EFK教程 - ElasticSearch角色分離

elasticsearch-master狀態(tài)

curl "http://192.168.1.31:9200/_cat/nodes?v"

EFK教程 - ElasticSearch角色分離

至此,當(dāng)node.role里所有服務(wù)器都不再出現(xiàn)“mid”,則表示一切順利完成。

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