centos7安装elasticsearch
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2022-07-05 07:50:49
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centos7安装elasticsearch
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去官网https://www.elastic.co/cn/downloads/past-releases下载对应的安装包包
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.3.tar.gz -
解压
tar -zxvf elasticsearch-6.4.3.tar.gz
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修改配置文件,默认不支持远程连接
cluster.name: es6 node.name: node0 path.data: /usr/local/elasticsearch-6.4.3/data path.logs: /usr/local/elasticsearch-6.4.3/logs network.host: 0.0.0.0
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ElasticSearch 可以接收脚本执行,默认不支持root用户启动
- 添加专门用户
useradd elastic
- 修改解压后elasticsearch文件夹所属用户
chown -R elastic:elastic elasticsearch-6.4.3
- 切换用户
su elsearch
后台启动./elasticsearch -d
- 添加专门用户
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启动后会占用两个端口
- 9200 是ES节点与外部通讯使用的端口, 是http协议的RESTful接口.
- 9300 是ES节点之间通讯使用的端口, 是tcp通讯端口,集群间和TCPclient都走的9300。(java程序中使用ES时,在配置文件中要配置该端口)
中文分词
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下载地址
https://github.com/medcl/elasticsearch-analysis-ik/releases
wget https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.4.3/elasticsearch-analysis-ik-6.4.3.zip
解压到
/plugins/ik
下面
图形化界面 kibana
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官网地址
https://www.elastic.co/cn/downloads/past-releases#kibana
wget https://artifacts.elastic.co/downloads/kibana/kibana-6.4.3-linux-x86_64.tar.gz
问题及处理
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线程数不够
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错误日志
ERROR: [2] bootstrap checks failed [1]: max number of threads [3000] for user [elastic] is too low, increase to at least [4096]
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vi /etc/security/limits.conf
* soft nofile 65536 * hard nofile 65536 * soft nproc 65536 * hard nproc 65536
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max_map_count too low
- 错误日志
ERROR: [1] bootstrap checks failed [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
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vi /etc/sysctl.conf
vm.max_map_count = 655360
- 错误日志