官方网址 : https://www.elastic.co/guide/en/elasticsearch/reference/7.16/rpm.html#rpm-repohttps://www.elastic.co/guide/en/elasticsearch/reference/7.16/rpm.html#rpm-repo
清华镜像:
Index of /elasticstack/yum/elastic-7.x/ | 清华大学开源软件镜像站 | Tsinghua Open Source Mirror
ik分词器
Releases · medcl/elasticsearch-analysis-ik · GitHubThe IK Analysis plugin integrates Lucene IK analyzer into elasticsearch, support customized dictionary. - Releases · medcl/elasticsearch-analysis-ikhttps://github.com/medcl/elasticsearch-analysis-ik/releases
第一步 :
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
第二步:
在/etc/yum.repos.d/ 目录创建 elasticsearch.repo
[elasticsearch-7.x] name=Elasticsearch repository for 7.x packages baseurl=https://mirrors.tuna.tsinghua.edu.cn/elasticstack/yum/elastic-7.x/ gpgcheck=0 enabled=1
yum list | grep elasticsearch 查看可安装版本
yum install elasticsearch-7.16.1
第三步修改配置文件 /etc/elasticsearch/elasticsearch.yml
# ======================== 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: # #cluster.name: my-application # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # #node.name: node-1 node.name: node-1 # # Add custom attributes to the node: # #node.attr.rack: r1 # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # path.data: /var/lib/elasticsearch # # Path to log files: # path.logs: /var/log/elasticsearch # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #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: # #network.host: 192.168.0.1 network.host: 0.0.0.0 # # By default Elasticsearch listens for HTTP traffic on the first free port it # finds starting at 9200. Set a specific HTTP port here: # #http.port: 9200 http.port: 9200 http.cors.enabled : true http.cors.allow-origin : "*" # # 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]"] # #discovery.seed_hosts: ["host1", "host2"] discovery.seed_hosts: ["121.196.351.102"] # # Bootstrap the cluster using an initial set of master-eligible nodes: # #cluster.initial_master_nodes: ["node-1", "node-2"] cluster.initial_master_nodes: ["node-1"] # # For more information, consult the discovery and cluster formation module documentation. # # ---------------------------------- Various ----------------------------------- # # Require explicit names when deleting indices: # #action.destructive_requires_name: true # # ---------------------------------- Security ---------------------------------- # # *** WARNING *** # # Elasticsearch security features are not enabled by default. # These features are free, but require configuration changes to enable them. # This means that users don’t have to provide credentials and can get full access # to the cluster. Network connections are also not encrypted. # # To protect your data, we strongly encourage you to enable the Elasticsearch security features. # Refer to the following documentation for instructions. # # https://www.elastic.co/guide/en/elasticsearch/reference/7.16/configuring-stack-security.html
然后运行 , 开启并查看状态
systemctl enable --now elasticsearch systemctl start elasticsearch systemctl status elasticsearch
如果访问url无法响应可能是防火墙问题 , 可能是安全组问题
当报错如下 说明重装没有卸载干净 , 手动删除/var/lib/elasticsearch下面的node文件夹就好了
cannot downgrade a node from version [7.xx.x] to version [7.xx.x]
下面安装ik分词器
下载地址: https://github.com/medcl/elasticsearch-analysis-ikhttps://github.com/medcl/elasticsearch-analysis-ik
查看安装es的位置 我的centos8在 /usr/share/elasticsearch
运行命令 rpm -ql elasticsearch 查看
解压下载的ik到plugins目录
