es集群安装,邮储银行java面试

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简介: es集群安装,邮储银行java面试


http.cors.allow-origin: “*”

#内部节点之间沟通端口

transport.tcp.port: 9300

#设置是否压缩TCP传输时的数据,默认为false

transport.tcp.compress: true

#network.publish_host:10.10.164.1

cluster.routing.allocation.disk.threshold_enabled: false

For more information, consult the network module documentation.

--------------------------------- Discovery ----------------------------------

Pass an initial list of hosts to perform discovery when this node is started:

The default list of hosts is [“127.0.0.1”, “[::1]”]

#es7.x 之后新增的配置,写入候选主节点的设备地址,在开启服务后可以被选为主节点

discovery.seed_hosts: [“10.10.164.1:9300”, “10.10.164.2:9300”,“10.10.164.3:9300”]

Bootstrap the cluster using an initial set of master-eligible nodes:

#es7.x 之后新增的配置,初始化一个新的集群时需要此配置来选举master

cluster.initial_master_nodes: [“node-1”, “node-2”,“node-3”]

For more information, consult the discovery and cluster formation module documentation.

---------------------------------- Various -----------------------------------

Require explicit names when deleting indices:

#action.destructive_requires_name: true

节点node-2配置


======================== Elasticsearch Configuration =========================

NOTE: Elasticsearch comes with reasonable defaults for most settings.

Before you set out to tweak and tune the configuration, make sure you

understand what are you trying to accomplish and the consequences.

The primary way of configuring a node is via this file. This template lists

the most important settings you may want to configure for a production cluster.

Please consult the documentation for further information on configuration options:

https://www.elastic.co/guide/en/elasticsearch/reference/index.html

---------------------------------- Cluster -----------------------------------

Use a descriptive name for your cluster:

#配置es的集群名称,同一个集群中的多个节点使用相同的标识

#如果在同一网段下有多个集群,就可以用这个属性来区分不同的集群。

cluster.name: my-cluster

------------------------------------ Node ------------------------------------

Use a descriptive name for the node:

#节点名称

node.name: node-2

#是不是有资格竞选主节点

node.master: true

Add custom attributes to the node:

#node.attr.rack: r1

----------------------------------- Paths ------------------------------------

Path to directory where to store the data (separate multiple locations by comma):

#数据存储路径

path.data: /opt/es/data

Path to log files:

#日志存储路径

path.logs: /opt/es/logs

----------------------------------- Memory -----------------------------------

Lock the memory on startup:

#ES默认开启了内存地址锁定,为了避免内存交换提高性能。但是Centos6不支持SecComp功能,启动会报错,所以需要将其设置为false

#bootstrap.memory_lock: true

Make sure that the heap size is set to about half the memory available

on the system and that the owner of the process is allowed to use this

limit.

Elasticsearch performs poorly when the system is swapping the memory.

---------------------------------- Network -----------------------------------

By default Elasticsearch is only accessible on localhost. Set a different

address here to expose this node on the network:

#节点所绑定的IP地址,并且该节点会被通知到集群中的其他节点

#通过指定相同网段的其他节点会加入该集群中 0.0.0.0任意IP都可以访问elasticsearch

network.host: 10.10.164.2

bootstrap.system_call_filter: false

By default Elasticsearch listens for HTTP traffic on the first free port it

finds starting at 9200. Set a specific HTTP port here:

#作为数据节点

node.data: true

#对外提供服务的http端口,默认为9200

http.port: 9200

是否支持跨域

http.cors.enabled: true

*表示支持所有域名

http.cors.allow-origin: “*”

#内部节点之间沟通端口

transport.tcp.port: 9300

#设置是否压缩TCP传输时的数据,默认为false

transport.tcp.compress: true

#network.publish_host:10.10.164.2

cluster.routing.allocation.disk.threshold_enabled: false

For more information, consult the network module documentation.

--------------------------------- Discovery ----------------------------------

Pass an initial list of hosts to perform discovery when this node is started:

The default list of hosts is [“127.0.0.1”, “[::1]”]

#es7.x 之后新增的配置,写入候选主节点的设备地址,在开启服务后可以被选为主节点

discovery.seed_hosts: [“10.10.164.1:9300”, “10.10.164.2:9300”,“10.10.164.3:9300”]

Bootstrap the cluster using an initial set of master-eligible nodes:

#es7.x 之后新增的配置,初始化一个新的集群时需要此配置来选举master

cluster.initial_master_nodes: [“node-1”, “node-2”,“node-3”]

For more information, consult the discovery and cluster formation module documentation.

---------------------------------- Various -----------------------------------

Require explicit names when deleting indices:

#action.destructive_requires_name: true

节点node-3配置


======================== Elasticsearch Configuration =========================

NOTE: Elasticsearch comes with reasonable defaults for most settings.

Before you set out to tweak and tune the configuration, make sure you

understand what are you trying to accomplish and the consequences.

The primary way of configuring a node is via this file. This template lists

the most important settings you may want to configure for a production cluster.

Please consult the documentation for further information on configuration options:

https://www.elastic.co/guide/en/elasticsearch/reference/index.html

---------------------------------- Cluster -----------------------------------

Use a descriptive name for your cluster:

#配置es的集群名称,同一个集群中的多个节点使用相同的标识

#如果在同一网段下有多个集群,就可以用这个属性来区分不同的集群。

cluster.name: my-cluster

------------------------------------ Node ------------------------------------

Use a descriptive name for the node:

#节点名称

node.name: node-3

#是不是有资格竞选主节点

node.master: true

Add custom attributes to the node:

#node.attr.rack: r1

----------------------------------- Paths ------------------------------------

Path to directory where to store the data (separate multiple locations by comma):

#数据存储路径

path.data: /opt/es/data

Path to log files:

#日志存储路径

path.logs: /opt/es/logs

----------------------------------- Memory -----------------------------------

Lock the memory on startup:

#ES默认开启了内存地址锁定,为了避免内存交换提高性能。但是Centos6不支持SecComp功能,启动会报错,所以需要将其设置为false

#bootstrap.memory_lock: true

Make sure that the heap size is set to about half the memory available

on the system and that the owner of the process is allowed to use this

limit.

Elasticsearch performs poorly when the system is swapping the memory.


相关实践学习
使用阿里云Elasticsearch体验信息检索加速
通过创建登录阿里云Elasticsearch集群,使用DataWorks将MySQL数据同步至Elasticsearch,体验多条件检索效果,简单展示数据同步和信息检索加速的过程和操作。
ElasticSearch 入门精讲
ElasticSearch是一个开源的、基于Lucene的、分布式、高扩展、高实时的搜索与数据分析引擎。根据DB-Engines的排名显示,Elasticsearch是最受欢迎的企业搜索引擎,其次是Apache Solr(也是基于Lucene)。 ElasticSearch的实现原理主要分为以下几个步骤: 用户将数据提交到Elastic Search 数据库中 通过分词控制器去将对应的语句分词,将其权重和分词结果一并存入数据 当用户搜索数据时候,再根据权重将结果排名、打分 将返回结果呈现给用户 Elasticsearch可以用于搜索各种文档。它提供可扩展的搜索,具有接近实时的搜索,并支持多租户。
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