1、安装JDK
必须安装JDK并且要求版本至少是1.8以上包含1.8的版本。2、创建 es 用户
这里需要注意的是,es 规定 root 用户不能启动 es,所以需要创建一个用户来启动 es# 创建用户名为 es 的用户
useradd es# 设置 es 用户的密码passwd es# 切换到 es 用户下
su es3、安装Elasticsearch
3.1、下载压缩包
# wget 3.2、执行解压缩# tar -zxvf elasticsearch-6.2.2.tar.gz3.3、启动elasticsearch# cd elasticsearch-6.2.2/bin# ./elasticsearch以下日志是成功启动
[2019-03-20T16:20:46,911][INFO ][o.e.c.s.ClusterApplierService] [MoeCA8i] new_master {MoeCA8i}{MoeCA8iYR96bKyfVnwxvjw}{9ihQwgpMRfyd3Df2swYyWg}{127.0.0.1}{127.0.0.1:9300}, reason: apply cluster state (from master [master {MoeCA8i}{MoeCA8iYR96bKyfVnwxvjw}{9ihQwgpMRfyd3Df2swYyWg}{127.0.0.1}{127.0.0.1:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])[2019-03-20T16:20:46,962][INFO ][o.e.h.n.Netty4HttpServerTransport] [MoeCA8i] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}[2019-03-20T16:20:46,963][INFO ][o.e.n.Node ] [MoeCA8i] started[2019-03-20T16:20:47,011][INFO ][o.e.g.GatewayService ] [MoeCA8i] recovered [0] indices into cluster_state
3.4、测试访问
# curl localhost:9200{ "name" : "TpKF8Pj", "cluster_name" : "elasticsearch", "cluster_uuid" : "ff51GJFuTKyXRm4r-8y_Aw", "version" : { "number" : "6.2.2", "build_hash" : "10b1edd", "build_date" : "2018-02-16T19:01:30.685723Z", "build_snapshot" : false, "lucene_version" : "7.2.1", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0" }, "tagline" : "You Know, for Search"}
注意:启动es后按ctrl + c会时es停止运行,最好启动时加入后台运行模式:./elasticsearch &
3.5、关闭elasticSearch
# 找到elasticsearch的进程号# jps | grep Elasticsearch3673 Elasticsearch# kill -9 3673
可能遇到的错误:问题一:max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]解决方法:
#切换到root用户修改vim /etc/security/limits.conf# 在最后面追加下面内容
es hard nofile 65536es soft nofile 65536问题二:
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]解决方法 提高vm.max_map_count 的大小
# 切换到root用户vim /etc/sysctl.conf# 在最后面追加下面内容vm.max_map_count=262144# 使用 sysctl -p 查看修改后的结果sysctl -p问题三:
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot allocate memory' (errno=12)解决方法:
# 由于elasticsearch5.0默认分配jvm空间大小为2g,修改jvm空间分配# 如果使用虚拟机安装,内存最好不小于2G# vim config/jvm.options -Xms512m-Xmx512m在阿里云上可能出现的问题:
system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk解决方法:在es配置中加入下面命令即可
bootstrap.system_call_filter: false