标签：node 7.15 Kylin name V10 cluster ElasticSearch usr elasticsearch

前言

操作系统：Kylin Linux Advanced Server release V10 (Tercel)

elasticsearch-7.15.2

只允许普通用户操作，不允许root用户

注意：因为elasticsearch有远程执行脚本的功能所以容易中木马病毒，所以不允许用root用户启动，root用户是起不来的，赋权限，用一般的用户启动

要配置network.host才能别的机器或者网卡访问，否则只能是127.0.0.1或者localhost访问，这里配置成自己的局域网ip

注意：配置yml结尾的配置文件都需要冒号后面加空格才行

一、下载与解压

官网下载：https://www.elastic.co/cn/downloads/elasticsearch

注意下载的是aarch64版本的，并不是x86的。

将elasticsearch-7.15.2-linux-aarch64.tar.gz上传到服务器，并进行解压。

上传安装包：

将elasticsearch-7.15.2-linux-aarch64.tar.gz上传到 /usr/local/src
用Xftp软件连接登录部署es的服务器，进行安装包的上传
将安装包elasticsearch-7.15.2-linux-aarch64.tar.gz拖动到/usr/local/src文件夹中

Centos中查看有哪些用户

cut -d : -f 1 /etc/passwd

adduser elasticsearch

passwd elasticsearch

tar -zxvf elasticsearch-7.15.2-linux-aarch64.tar.gz

cp -R elasticsearch-7.15.2 /usr/local/

chown -R elasticsearch:elasticsearch /usr/local/elasticsearch-7.15.2/

二、修改配置文件

1、修改 elasticsearch.yml 设置elastic

命令:

vi /usr/local/elasticsearch-7.15.2/config/elasticsearch.yml

使用上面命令打开elasticsearch.yml，在此文件编辑如下所示相应配置：

# ======================== 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:
#
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
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: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/logs
#
# ----------------------------------- 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: 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
#
# 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: ["127.0.0.1", "host2"]
#
# Bootstrap the cluster using an initial set of master-eligible nodes:
#
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

2、配置文件说明：

#集群名称
cluster.name: my-application
#节点名称
node.name: node-1
#当前节点所绑定的本机IP
network.host: 0.0.0.0
#初始化集群主节点
cluster.initial_master_nodes: ["node-1"]

注意：如果要配置集群需要两个节点上的elasticsearch配置的cluster.name相同，都启动可以自动组成集群，

这里如果不改cluster.name则默认是cluster.name=elasticsearch，nodename随意取但是集群内的各节点不能相同。

3、编辑 /etc/security/limits.conf，追加以下内容：

* soft nofile 65536
* hard nofile 65536
* soft nproc 4096
* hard nproc 4096

此文件修改后需要重新登录用户，才会生效

4、修改/etc/sysctl.conf：

vi /etc/sysctl.conf

使用上面命令打开/etc/sysctl.conf ,在此文件最下面加入如下所示配置:
vm.max_map_count=655360
保存后如下图所示：

执行如下所示命令:

sysctl -p

三、启动ES

切换用户：

su elasticsearch

启动ES：

sh /usr/local/elasticsearch-7.15.2/bin/elasticsearch

后台启动：

sh /usr/local/elasticsearch-7.15.2/bin/elasticsearch -d

查看ES日志：

tail -f /usr/local/elasticsearch-7.15.2/logs/my-application.log

四、测试访问

本机访问：

[root@localhost ~]# curl 127.0.0.1:9200

局域网访问，注意：关闭防火墙

systemctl status firewalld

五、设置开机启动

1、建立服务文件

vi /lib/systemd/system/elasticsearch.service

[Unit]
Description=elasticsearch
[Service]
LimitNOFILE=100000
LimitNPROC=100000
ExecStart=/usr/local/elasticsearch-7.15.2/bin/elasticsearch
User=elasticsearch
Group=elasticsearch
[Install]
WantedBy=multi-user.target

2、设置开机自启动

重新加载systemd的守护线程：systemctl daemon-reload

systemctl enable elasticsearch

3、其它

启动elasticsearch.service：
systemctl start elasticsearch.service

查看elasticsearch.serivce状态：
systemctl status elasticsearch.service

ps aux|grep 

java如果出现错误可以使用如下命令查看日志：

journalctl -u elaticsearch.service

标签：node,7.15,Kylin,name,V10,cluster,ElasticSearch,usr,elasticsearch
来源： https://www.cnblogs.com/haolb123/p/16531406.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。