Elasticsearch安装配置

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1. 从Elastic官网下载最新版本的Elasticsearch，目前最新版本为V2.3.3。


2. 解压

1	tar zxvf elasticsearch-2.3.2.tar.gz

3. 切换到Elasticsearch的bin目录下，启动服务。

1 2	./elasticsearch Exception in thread "main" java.lang.RuntimeException: don't run elasticsearch as root.

启动时会发现Elasticsearch会报如下错误，因为Elasticsearch为安全起见不允许使用root账号启动服务。

4. 创建一个新账号

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[iyunv@Server01 bin]# useradd elasticsearchuser [iyunv@Server01 bin]# passwd elasticsearchuser Changing password for user elasticsearchuser. New password: BAD PASSWORD: is too simple Retype new password: passwd: all authentication tokens updated successfully. [iyunv@Server01 bin]# usermod -g root elasticsearchuser

5. 重新启动服务。

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[elasticsearchuser@Server01 bin]$ ./elasticsearch [2016-05-19 16:44:41,864][WARN ][bootstrap                ] unable to install syscall filter: seccomp unavailable: requires kernel 3.5+ with CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER compiled in [2016-05-19 16:44:42,190][INFO ][node                     ] [Genis-Vell] version[2.3.2], pid[8878], build[b9e4a6a/2016-04-21T16:03:47Z] [2016-05-19 16:44:42,191][INFO ][node                     ] [Genis-Vell] initializing ... [2016-05-19 16:44:42,774][INFO ][plugins                  ] [Genis-Vell] modules [lang-groovy, reindex, lang-expression], plugins [], sites [] [2016-05-19 16:44:42,805][INFO ][env                      ] [Genis-Vell] using [1] data paths, mounts [[/ (/dev/sda2)]], net usable_space [486.6gb], net total_space [533.7gb], spins? [possibly], types [ext4] [2016-05-19 16:44:42,805][INFO ][env                      ] [Genis-Vell] heap size [990.7mb], compressed ordinary object pointers [true] [2016-05-19 16:44:42,805][WARN ][env                      ] [Genis-Vell] max file descriptors [20480] for elasticsearch process likely too low, consider increasing to at least [65536] [2016-05-19 16:44:44,758][INFO ][node                     ] [Genis-Vell] initialized [2016-05-19 16:44:44,758][INFO ][node                     ] [Genis-Vell] starting ... [2016-05-19 16:44:44,858][INFO ][transport                ] [Genis-Vell] publish_address {127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}, {[::1]:9300} [2016-05-19 16:44:44,863][INFO ][discovery                ] [Genis-Vell] elasticsearch/kpitDjQNTwu8Q4D4pbWXnQ [2016-05-19 16:44:47,910][INFO ][cluster.service          ] [Genis-Vell] new_master {Genis-Vell}{kpitDjQNTwu8Q4D4pbWXnQ}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received) [2016-05-19 16:44:47,923][INFO ][http                     ] [Genis-Vell] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}, {[::1]:9200} [2016-05-19 16:44:47,923][INFO ][node                     ] [Genis-Vell] started [2016-05-19 16:44:48,020][INFO ][gateway                  ] [Genis-Vell] recovered [0] indices into cluster_state

6. 服务也可以以守护进程方式运行

1	./elasticsearch -d

还可以在启动时同时指定pid

1	./elasticsearch -d -p pid

7. 在浏览器中访问一下，再次确认服务是完好的，但前提是修改/config/elasticsearch.yml，找到 network.host在下面添加一行，然后就可以在浏览器中访问http://10.0.0.5:9200/。

1	network.host ： 10.0.0.5

浏览器显示内容如下：

{  "name" : "Gargouille",  "cluster_name" : "elasticsearch",  "version" : {    "number" : "2.3.2",    "build_hash" : "b9e4a6acad4008027e4038f6abed7f7dba346f94",    "build_timestamp" : "2016-04-21T16:03:47Z",    "build_snapshot" : false,    "lucene_version" : "5.5.0"  },  "tagline" : "You Know, for Search"}

至此，Elasticsearch安装启动完毕，更详细的操作还待后文。