Elasticsearch安装

Elasticsearch安装包下载(一定不要安装在root下 可安装在/opt)

1)Elasticsearch官网: https://www.elastic.co/products/elasticsearch

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2.2 安装Elasticsearch(单节点Linux环境)

[root@bigdata13 elasticsearch-5.2.2]# useradd itstar

1)解压elasticsearch-5.6.1.tar.gz到/opt/module目录下

[itstar@bigdata11 software]$ tar -zxvf elasticsearch-5.6.1.tar.gz -C /opt/module/

2)在/opt/module/elasticsearch-5.6.1路径下创建data和logs文件夹

[itstar@bigdata11 elasticsearch-5.6.1]$ mkdir data

[itstar@bigdata11 elasticsearch-5.6.1]$ mkdir logs

[root@bigdata13 elasticsearch-5.2.2]# chown -R itstar:itstar /opt/module/elasticsearch-5.2.2/

3)修改配置文件/opt/module/elasticsearch-5.2.2/config/elasticsearch.yml

[itstar@bigdata11 config]$ pwd

/opt/module/elasticsearch-5.6.1/config

[itstar@bigdata11 config]$ vi elasticsearch.yml

# ---------------------------------- Cluster ------------------------------------- cluster.name: Andy # ------------------------------------ Node --------------------------------------(三个不能一样) node.name: node-102 # ----------------------------------- Paths --------------------------------------- path.data: /opt/module/elasticsearch-5.6.1/data path.logs: /opt/module/elasticsearch-5.6.1/logs # ----------------------------------- Memory ----------------------------------- bootstrap.memory_lock: false bootstrap.system_call_filter: false # ---------------------------------- Network ------------------------------------ network.host: 192.168.1.102 # --------------------------------- Discovery ------------------------------------ discovery.zen.ping.unicast.hosts: ["bigdata11"]

(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.csdn.net/satiling/article/details/59697916)

(1)编辑limits.conf 添加类似如下内容

[itstar@bigdata11 elasticsearch-5.6.1]$ sudo vi /etc/security/limits.conf

添加如下内容:

* soft nofile 65536

* hard nofile 131072

* soft nproc 2048

* hard nproc 4096

(2)进入limits.d目录下修改配置文件。

[itstar@bigdata11 elasticsearch-5.6.1]$ sudo vi /etc/security/limits.d/20-nproc.conf

修改如下内容:

* soft nproc 1024

#修改为

* soft nproc 2048

(3)修改配置sysctl.conf

[itstar@bigdata11 elasticsearch-5.6.1]$ sudo vi /etc/sysctl.conf

添加下面配置:

vm.max_map_count=655360

并执行命令:

[itstar@bigdata11 elasticsearch-5.6.1]$ sudo sysctl -p

然后,重新启动elasticsearch,即可启动成功。

6)启动elasticsearch

[itstar@hadoop105 elasticsearch-5.6.1]$ bin/elasticsearch

后台启动方式

[itstar@hadoop105 elasticsearch-5.6.1]$ bin/elasticsearch -d

7)测试elasticsearch

[itstar@bigdata11 elasticsearch-5.6.1]$ curl http://bigdata11:9200{ "name" : "node-102", "cluster_name" : "my-application", "cluster_uuid" : "znZfW5tGQou9rKzb6pG6vA", "version" : { "number" : "5.6.1", "build_hash" : "667b497", "build_date" : "2017-09-14T19:22:05.189Z", "build_snapshot" : false, "lucene_version" : "6.6.1" }, "tagline" : "You Know, for Search" }

chrome://extensions/

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