ES 数据节点、协调节点、master节点高性能高可用搭建二

目录

▪ 用途 ▪ 架构 ▪ 步骤说明 ▪ elasticsearch-data部署 ▪ elasticsearch-ingest部署 ▪ elasticsearch-master部署

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用途

在第一篇《EFK教程 - 快速入门指南》中，阐述了EFK的安装部署，其中ES的架构为三节点，即master、ingest、data角色同时部署在三台服务器上。

在本文中，将进行角色分离部署，并且每个角色分别部署三节点，在实现性能最大化的同时保障高可用。

▷ elasticsearch的master节点：用于调度，采用普通性能服务器来部署 ▷ elasticsearch的ingest节点：用于数据预处理，采用性能好的服务器来部署 ▷ elasticsearch的data节点：用于数据落地存储，采用存储性能好的服务器来部署

1. 若不知道去哪找《EFK教程 - 快速入门指南》，可在主流搜索引擎里搜索：

2. 小慢哥 EFK教程 快速入门指南

3. 或者

4. 小慢哥 EFK教程 基于多节点ES的EFK安装部署配置

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架构

服务器配置

注意：此处的架构是之前的文章《EFK教程 - 快速入门指南》的拓展，因此请先按照《EFK教程 - 快速入门指南》完成部署

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步骤说明

1️⃣ 部署3台data节点，加入原集群 2️⃣ 部署3台ingest节点，加入原集群 3️⃣ 将原有的es索引迁移到data节点 4️⃣ 将原有的es节点改造成master节点

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elasticsearch-data部署

之前已完成了基础的elasticsearch架构，现需要新增三台存储节点加入集群，同时关闭master和ingest功能

elasticsearch-data安装：3台均执行相同的安装步骤

1. tar -zxvf elasticsearch-7.3.2-linux-x86_64.tar.gz

2. mv elasticsearch-7.3.2 /opt/elasticsearch

3. useradd elasticsearch -d /opt/elasticsearch -s /sbin/nologin

4. mkdir -p /opt/logs/elasticsearch

5. chown elasticsearch.elasticsearch /opt/elasticsearch -R

6. chown elasticsearch.elasticsearch /opt/logs/elasticsearch -R

7. # 数据盘需要elasticsearch写权限

8. chown elasticsearch.elasticsearch /data/SAS -R

10. # 限制一个进程可以拥有的VMA(虚拟内存区域)的数量要超过262144，不然elasticsearch会报max virtual memory areas vm.max_map_count [65535] is too low, increase to at least [262144]

11. echo "vm.max_map_count = 655350" >> /etc/sysctl.conf

12. sysctl -p

elasticsearch-data配置

▷ 192.168.1.51 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.51

3. # 数据盘位置，如果有多个硬盘位置，用","隔开

4. path.data: /data/SAS

5. path.logs: /opt/logs/elasticsearch

6. network.host: 192.168.1.51

8. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

9. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

10. http.cors.enabled: true

11. http.cors.allow-origin: "*"

13. # 关闭master功能

14. node.master: false

15. # 关闭ingest功能

16. node.ingest: false

17. # 开启data功能

18. node.data: true

▷ 192.168.1.52 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.52

3. # 数据盘位置，如果有多个硬盘位置，用","隔开

4. path.data: /data/SAS

5. path.logs: /opt/logs/elasticsearch

6. network.host: 192.168.1.52

8. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

9. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

10. http.cors.enabled: true

11. http.cors.allow-origin: "*"

2. # 关闭master功能

3. node.master: false

4. # 关闭ingest功能

5. node.ingest: false

6. # 开启data功能

7. node.data: true

▷ 192.168.1.53 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.53

3. # 数据盘位置，如果有多个硬盘位置，用","隔开

4. path.data: /data/SAS

5. path.logs: /opt/logs/elasticsearch

6. network.host: 192.168.1.53

8. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

9. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

10. http.cors.enabled: true

11. http.cors.allow-origin: "*"

13. # 关闭master功能

14. node.master: false

15. # 关闭ingest功能

16. node.ingest: false

17. # 开启data功能

18. node.data: true

elasticsearch-data启动

1. sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

elasticsearch集群状态

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

elasticsearch-data状态

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

elasticsearch-data参数说明

1. status: green # 集群健康状态

2. node.total: 6 # 有6台机子组成集群

3. node.data: 6 # 有6个节点的存储

4. node.role: d # 只拥有data角色

5. node.role: i # 只拥有ingest角色

6. node.role: m # 只拥有master角色

7. node.role: mid # 拥master、ingest、data角色

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elasticsearch-ingest部署

现需要新增三台ingest节点加入集群，同时关闭master和data功能

elasticsearch-ingest安装：3台es均执行相同的安装步骤

1. tar -zxvf elasticsearch-7.3.2-linux-x86_64.tar.gz

2. mv elasticsearch-7.3.2 /opt/elasticsearch

3. useradd elasticsearch -d /opt/elasticsearch -s /sbin/nologin

4. mkdir -p /opt/logs/elasticsearch

5. chown elasticsearch.elasticsearch /opt/elasticsearch -R

6. chown elasticsearch.elasticsearch /opt/logs/elasticsearch -R

8. # 限制一个进程可以拥有的VMA(虚拟内存区域)的数量要超过262144，不然elasticsearch会报max virtual memory areas vm.max_map_count [65535] is too low, increase to at least [262144]

9. echo "vm.max_map_count = 655350" >> /etc/sysctl.conf

10. sysctl -p

elasticsearch-ingest配置

▷ 192.168.1.41 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.41

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.41

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. # 关闭master功能

12. node.master: false

13. # 开启ingest功能

14. node.ingest: true

15. # 关闭data功能

16. node.data: false

▷ 192.168.1.42 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.42

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.42

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. # 关闭master功能

12. node.master: false

13. # 开启ingest功能

14. node.ingest: true

15. # 关闭data功能

16. node.data: false

▷ 192.168.1.43 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.43

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.43

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. # 关闭master功能

12. node.master: false

13. # 开启ingest功能

14. node.ingest: true

15. # 关闭data功能

16. node.data: false

elasticsearch-ingest启动

1. sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

elasticsearch集群状态

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

elasticsearch-ingest状态

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

elasticsearch-ingest参数说明

1. status: green # 集群健康状态

2. node.total: 9 # 有9台机子组成集群

3. node.data: 6 # 有6个节点的存储

4. node.role: d # 只拥有data角色

5. node.role: i # 只拥有ingest角色

6. node.role: m # 只拥有master角色

7. node.role: mid # 拥master、ingest、data角色

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elasticsearch-master部署

首先，将上一篇《EFK教程 - 快速入门指南》中部署的3台es（192.168.1.31、192.168.1.32、192.168.1.33）改成只有master的功能， 因此需要先将这3台上的索引数据迁移到本次所做的data节点中

1️⃣ 索引迁移：一定要做这步，将之前的索引放到data节点上

1. curl -X PUT "192.168.1.31:9200/*/_settings?pretty" -H 'Content-Type: application/json' -d'

2. {

3. "index.routing.allocation.include._ip": "192.168.1.51,192.168.1.52,192.168.1.53"

4. }'

2️⃣ 确认当前索引存储位置：确认所有索引不在192.168.1.31、192.168.1.32、192.168.1.33节点上

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

elasticsearch-master配置

注意事项：修改配置，重启进程，需要一台一台执行，要确保第一台成功后，再执行下一台。重启进程的方法：由于上一篇文章《EFK教程 - 快速入门指南》里，是执行命令跑在前台，因此直接ctrl - c退出再启动即可，启动命令如下

1. sudo -u elasticsearch /opt/elasticsearch/bin/elasticsearch

▷ 192.168.1.31 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.31

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.31

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. #开启master功能

12. node.master: true

13. #关闭ingest功能

14. node.ingest: false

15. #关闭data功能

16. node.data: false

▷ 192.168.1.32 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.32

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.32

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. #开启master功能

12. node.master: true

13. #关闭ingest功能

14. node.ingest: false

15. #关闭data功能

16. node.data: false

▷ 192.168.1.33 /opt/elasticsearch/config/elasticsearch.yml

1. cluster.name: my-application

2. node.name: 192.168.1.33

3. path.logs: /opt/logs/elasticsearch

4. network.host: 192.168.1.33

6. discovery.seed_hosts: ["192.168.1.31","192.168.1.32","192.168.1.33"]

7. cluster.initial_master_nodes: ["192.168.1.31","192.168.1.32","192.168.1.33"]

8. http.cors.enabled: true

9. http.cors.allow-origin: "*"

11. #开启master功能

12. node.master: true

13. #关闭ingest功能

14. node.ingest: false

15. #关闭data功能

16. node.data: false

elasticsearch集群状态

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

elasticsearch-master状态

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

至此，当node.role里所有服务器都不再出现“mid”，则表示一切顺利完成。