安装Elasticsearch（单节点Linux环境）
1 安装包下载
1）Elasticsearch官网： https://www.elastic.co/products/elasticsearch
2 安装Elasticsearch（单节点Linux环境）
1）解压elasticsearch-5.2.2.tar.gz到/opt/module目录下
[[email protected] software]$ tar -zxvf elasticsearch-5.2.2.tar.gz -C /opt/module/
2）在/opt/module/elasticsearch-5.2.2路径下创建data和logs文件夹
[[email protected] elasticsearch-5.2.2]$ mkdir data
[[email protected] elasticsearch-5.2.2]$ mkdir logs
3）修改配置文件/opt/module/elasticsearch-5.2.2/config/elasticsearch.yml
[[email protected] config]$ pwd
/opt/module/elasticsearch-5.2.2/config
[[email protected] config]$ vi elasticsearch.yml
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# ---------------------------------- Cluster ----------------------------------- cluster.name: my-application # ------------------------------------ Node ------------------------------------ node.name: node-102 # ----------------------------------- Paths ------------------------------------ path.data: /opt/module/elasticsearch-5.2.2/data path.logs: /opt/module/elasticsearch-5.2.2/logs # ----------------------------------- Memory ----------------------------------- bootstrap.memory_lock: false bootstrap.system_call_filter: false # ---------------------------------- Network ----------------------------------- network.host: 192.168.1.102 # --------------------------------- Discovery ---------------------------------- discovery.zen.ping.unicast.hosts: ["hadoop102"] |
（1）cluster.name
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=my-application，
（2）nodename随意取但是集群内的各节点不能相同
（3）修改后的每行前面不能有空格，修改后的“：”后面必须有一个空格
5）配置linux系统环境（参考：http://blog.****.net/satiling/article/details/59697916）
（1）切换到root用户，编辑limits.conf 添加类似如下内容
[[email protected] elasticsearch-5.2.2]# vi /etc/security/limits.conf
添加如下内容:
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
（2）切换到root用户，进入limits.d目录下修改配置文件。
[[email protected] elasticsearch-5.2.2]# vi /etc/security/limits.d/90-nproc.conf
修改如下内容：
* soft nproc 1024
#修改为
* soft nproc 2048
（3）切换到root用户修改配置sysctl.conf
[[email protected] elasticsearch-5.2.2]# vi /etc/sysctl.conf
添加下面配置：
vm.max_map_count=655360
并执行命令：
[[email protected] elasticsearch-5.2.2]# sysctl -p
然后，重新启动elasticsearch，即可启动成功。
6）启动集群
[[email protected] elasticsearch-5.2.2]$ bin/elasticsearch
7）测试集群
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[[email protected] elasticsearch-5.2.2]$ curl http://hadoop102:9200 { "name" : "node-102", "cluster_name" : "my-application", "cluster_uuid" : "v-nwhc7ITsmVHECpNQYzHw", "version" : { "number" : "5.2.2", "build_hash" : "57e20f3", "build_date" : "2017-09-23T13:16:45.703Z", "build_snapshot" : false, "lucene_version" : "6.6.1" }, "tagline" : "You Know, for Search" } |