Elasticsearch 配置文件详解

男娘i 2022-02-04 06:59 218阅读 0赞

此elasticsearch-.yml配置文件，是在$ES\_HOME/config/下

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**elasticsearch-.yml（中文配置详解）**

\# ======================== 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 see the documentation for further information on configuration options:  
\# <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html>  
\#  
\# ---------------------------------- Cluster -----------------------------------  
\#  
\# Use a descriptive name for your cluster:  
\# 集群名称，默认是elasticsearch  
\# cluster.name: my-application  
\#  
\# ------------------------------------ Node ------------------------------------  
\#  
\# Use a descriptive name for the node:  
\# 节点名称，默认从elasticsearch-2.4.3/lib/elasticsearch-2.4.3.jar!config/names.txt中随机选择一个名称  
\# node.name: node-1  
\#  
\# Add custom attributes to the node:  
\#   
\# node.rack: r1  
\#  
\# ----------------------------------- Paths ------------------------------------  
\#  
\# Path to directory where to store the data (separate multiple locations by comma):  
\# 可以指定es的数据存储目录，默认存储在es\_home/data目录下  
\# path.data: /path/to/data  
\#  
\# Path to log files:  
\# 可以指定es的日志存储目录，默认存储在es\_home/logs目录下  
\# path.logs: /path/to/logs  
\#  
\# ----------------------------------- Memory -----------------------------------  
\#  
\# Lock the memory on startup:  
\# 锁定物理内存地址，防止elasticsearch内存被交换出去,也就是避免es使用swap交换分区  
\# bootstrap.memory\_lock: true  
\#  
\#  
\#  
\# 确保ES\_HEAP\_SIZE参数设置为系统可用内存的一半左右  
\# Make sure that the \`ES\_HEAP\_SIZE\` environment variable is set to about half the memory  
\# available on the system and that the owner of the process is allowed to use this limit.  
\#   
\# 当系统进行内存交换的时候，es的性能很差  
\# Elasticsearch performs poorly when the system is swapping the memory.  
\#  
\# ---------------------------------- Network -----------------------------------  
\#  
\#  
\# 为es设置ip绑定，默认是127.0.0.1，也就是默认只能通过127.0.0.1 或者localhost才能访问  
\# es1.x版本默认绑定的是0.0.0.0 所以不需要配置，但是es2.x版本默认绑定的是127.0.0.1，需要配置  
\# Set the bind address to a specific IP (IPv4 or IPv6):  
\#  
\# network.host: 192.168.0.1  
\#  
\#  
\# 为es设置自定义端口，默认是9200  
\# 注意：在同一个服务器中启动多个es节点的话，默认监听的端口号会自动加1：例如：9200，9201，9202...  
\# Set a custom port for HTTP:  
\#  
\# http.port: 9200  
\#  
\# For more information, see the documentation at:  
\# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html>  
\#  
\# --------------------------------- Discovery ----------------------------------  
\#  
\# 当启动新节点时，通过这个ip列表进行节点发现，组建集群  
\# 默认节点列表：  
\# 127.0.0.1，表示ipv4的回环地址。  
\# \[::1\]，表示ipv6的回环地址  
\#  
\# 在es1.x中默认使用的是组播(multicast)协议，默认会自动发现同一网段的es节点组建集群，  
\# 在es2.x中默认使用的是单播(unicast)协议，想要组建集群的话就需要在这指定要发现的节点信息了。  
\# 注意：如果是发现其他服务器中的es服务，可以不指定端口\[默认9300\]，如果是发现同一个服务器中的es服务，就需要指定端口了。  
\# Pass an initial list of hosts to perform discovery when new node is started:  
\#   
\# The default list of hosts is \["127.0.0.1", "\[::1\]"\]  
\#  
\# discovery.zen.ping.unicast.hosts: \["host1", "host2"\]  
\#  
\#  
\#  
\#  
\# 通过配置这个参数来防止集群脑裂现象 (集群总节点数量/2)+1  
\# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):  
\#  
\# discovery.zen.minimum\_master\_nodes: 3  
\#  
\# For more information, see the documentation at:  
\# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html>  
\#  
\# ---------------------------------- Gateway -----------------------------------  
\#  
\# Block initial recovery after a full cluster restart until N nodes are started:  
\# 一个集群中的N个节点启动后,才允许进行数据恢复处理，默认是1  
\# gateway.recover\_after\_nodes: 3  
\#  
\# For more information, see the documentation at:  
\# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html>  
\#  
\# ---------------------------------- Various -----------------------------------  
\# 在一台服务器上禁止启动多个es服务  
\# Disable starting multiple nodes on a single system:  
\#  
\# node.max\_local\_storage\_nodes: 1  
\#  
\# 设置是否可以通过正则或者\_all删除或者关闭索引库，默认true表示必须需要显式指定索引库名称  
\# 生产环境建议设置为true，删除索引库的时候必须显式指定，否则可能会误删索引库中的索引库。  
\# Require explicit names when deleting indices:  
\#  
\# action.destructive\_requires\_name: true

\#spring集成Elasticsearch需增加配置

transport.tcp.port: 9300  
transport.tcp.compress: true  
http.cors.enabled: true   
http.cors.allow-origin: "\*"  
node.master: true  
node.data: true

**总结**

1、es已经为大多数参数设置合理的默认值

2、这个配置文件中列出来了针对生产环境下的一些重要配置

3、注意：这个文件是yaml格式的文件

（1）：属性顶格写，不能有空格

（2）：缩进一定不能使用tab制表符

（3）：属性和值之间的:后面需要有空格

network.host: 192.168.80.200

4、es的1.\*版本比2.\*版本，这个配置文件多了很多属性，为什么2.\*版本没了呢，因为，es很多地方做了默认配置。

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