Elasticsearch5.2.2 安装教程
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1、因Elasticsearch是基于Java写的,所以它的运行环境中需要java的支持,在Linux下执行命令:java -version,检查Jar包是否安装
安装java版本至少是1.8以上
2、首先准备下载Elasticsearch5.2.2 安装包
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.2.2.tar.gz
3、下载到/usr/local 目录下,解压
tar -zxvf elasticsearch-5.2.2.tar.gz
4、因为Elasticsearch5.0之后,不能使用root账户启动,我们先创建一个elasticsearch组和账户
# useradd elasticsearch
# groupadd elasticsearchs
# gpasswd –a elasticsearch elasticsearchs
# chown -R elasticsearch:elasticsearchs elasticsearch-5.2.2
5、启动elasticsearch
cd /usr/local/elasticsearch5.2.2/
su elasticsearch
./bin/elasticsearch
注意:后台进程启动是./bin/elasticsearch -d这时候我们看见下面的提示,说明就成功了(后台进程启动方式看不到什么信息)
[elasticsearch@vmlnx-sma bin]$ ./elasticsearch [2017-03-02T21:43:21,185][INFO ][o.e.n.Node ] [] initializing ... [2017-03-02T21:43:21,264][INFO ][o.e.e.NodeEnvironment ] [uY3prpy] using [1] data paths, mounts [[/ (/dev/mapper/VolGroup-lv_root)]], net usable_space [43.5gb], net total_space [54.6gb], spins? [possibly], types [ext4] [2017-03-02T21:43:21,265][INFO ][o.e.e.NodeEnvironment ] [uY3prpy] heap size [1.9gb], compressed ordinary object pointers [true] [2017-03-02T21:43:21,268][INFO ][o.e.n.Node ] node name [uY3prpy] derived from node ID [uY3prpyqTHim5twauiVWhQ]; set [node.name] to override [2017-03-02T21:43:21,271][INFO ][o.e.n.Node ] version[5.2.2], pid[5602], build[f9d9b74/2017-02-24T17:26:45.835Z], OS[Linux/3.10.5-3.el6.x86_64/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/1.8.0_121/25.121-b13] [2017-03-02T21:43:22,226][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [aggs-matrix-stats] [2017-03-02T21:43:22,226][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [ingest-common] [2017-03-02T21:43:22,226][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [lang-expression] [2017-03-02T21:43:22,227][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [lang-groovy] [2017-03-02T21:43:22,227][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [lang-mustache] [2017-03-02T21:43:22,227][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [lang-painless] [2017-03-02T21:43:22,228][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [percolator] [2017-03-02T21:43:22,228][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [reindex] [2017-03-02T21:43:22,228][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [transport-netty3] [2017-03-02T21:43:22,229][INFO ][o.e.p.PluginsService ] [uY3prpy] loaded module [transport-netty4] [2017-03-02T21:43:22,230][INFO ][o.e.p.PluginsService ] [uY3prpy] no plugins loaded [2017-03-02T21:43:24,689][INFO ][o.e.n.Node ] initialized [2017-03-02T21:43:24,689][INFO ][o.e.n.Node ] [uY3prpy] starting ... [2017-03-02T21:43:24,929][INFO ][o.e.t.TransportService ] [uY3prpy] publish_address {10.245.250.65:9300}, bound_addresses {10.245.250.65:9300} [2017-03-02T21:43:24,948][INFO ][o.e.b.BootstrapChecks ] [uY3prpy] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks [2017-03-02T21:43:28,010][INFO ][o.e.c.s.ClusterService ] [uY3prpy] new_master {uY3prpy}{uY3prpyqTHim5twauiVWhQ}{AqALBH68RCucWcPmHCE6dw}{10.245.250.65}{10.245.250.65:9300}, reason: zen-disco-elected-as-master ([0] nodes joined) [2017-03-02T21:43:28,034][INFO ][o.e.h.HttpServer ] [uY3prpy] publish_address {10.245.250.65:9200}, bound_addresses {10.245.250.65:9200} [2017-03-02T21:43:28,034][INFO ][o.e.n.Node ] [uY3prpy] started [2017-03-02T21:43:28,061][INFO ][o.e.g.GatewayService ] [uY3prpy] recovered [0] indices into cluster_state
执行 curl http://localhost:9200
你能看到以下返回信息:
{
"status": 200,
"name": "Shrunken Bones",
"version": {
"number": "1.4.0",
"lucene_version": "4.10"
},
"tagline": "You Know, for Search"
}
说明安装成功。
但是我们希望能够使用ip访问,那么还需要设置相关内容
跳转到Elasticsearch的config配置文件下,使用vim打开elasticsearch.yml,找到里面的"network.host",将其改为本机IP,保存。
cd elasticsearch/config/
vim elasticsearch.yml
重启ElasticSearch,然后使用http://192.168.37.137:9200/访问。
重启方式:没有重启的办法,只有先杀掉es进程,再重新启动(ps -ef | grep elastic 》 kill 》启动)
问题一:警告提示
[2016-11-06T16:27:21,712][WARN ][o.e.b.JNANatives ] unable to install syscall filter:
java.lang.UnsupportedOperationException: seccomp unavailable: requires kernel 3.5+ with CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER compiled in
at org.elasticsearch.bootstrap.Seccomp.linuxImpl(Seccomp.java:349) ~[elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.bootstrap.Seccomp.init(Seccomp.java:630) ~[elasticsearch-5.0.0.jar:5.0.0]
报了一大串错误,其实只是一个警告。
解决:使用心得linux版本,就不会出现此类问题了。
问题二:ERROR: bootstrap checks failed
max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]
解决:切换到root用户,编辑limits.conf 添加类似如下内容
vi /etc/security/limits.conf
添加如下内容:
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
问题三:max number of threads [1024] for user [lish] likely too low, increase to at least [2048]
解决:切换到root用户,进入limits.d目录下修改配置文件。
vi /etc/security/limits.d/90-nproc.conf
修改如下内容:
* soft nproc 1024
#修改为
* soft nproc 2048
问题四:max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]
解决:切换到root用户修改配置sysctl.conf
vi /etc/sysctl.conf
添加下面配置:
vm.max_map_count=655360
并执行命令:
sysctl -p
然后,重新启动elasticsearch,即可启动成功。
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