ELK介紹、安裝es、測試(查看集羣狀態)、總結

ELK介紹、安裝es、測試(查看集羣狀態)、總結html

 

 

 

 

 

 ELK介紹java

 

 

 

 

 

需求背景node

業務發展愈來愈龐大,服務器愈來愈多linux

各類訪問日誌、應用日誌、錯誤日誌量愈來愈多git

開發人員排查問題,須要到服務器上查日誌,不方便web

運營人員須要一些數據,須要咱們運維到服務器上分析日誌json

ELK介紹vim

官網https://www.elastic.co/cn/安全

中文指南https://www.gitbook.com/book/chenryn/elk-stack-guide-cn/detailsbash

ELK Stack (5.0版本以後) Elastic Stack == (ELK Stack + Beats)

ELK Stack包含:ElasticSearch、Logstash、Kibana

ElasticSearch是一個搜索引擎,用來搜索、分析、存儲日誌。它是分佈式的,也就是說能夠橫向擴容,能夠自動發現,索引自動分片,總之很強大。文檔https://www.elastic.co/guide/cn/elasticsearch/guide/current/index.html

Logstash用來採集日誌,把日誌解析爲json格式交給ElasticSearch。

Kibana是一個數據可視化組件,把處理後的結果經過web界面展現

Beats在這裏是一個輕量級日誌採集器,其實Beats家族有5個成員

早期的ELK架構中使用Logstash收集、解析日誌,可是Logstash對內存、cpu、io等資源消耗比較高。相比 Logstash,Beats所佔系統的CPU和內存幾乎能夠忽略不計

x-pack對Elastic Stack提供了安全、警報、監控、報表、圖表於一身的擴展包,是收費的

ELK架構

 

 

 

 

 

 

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27.2 ELK安裝準備工做

 

 

 

 

準備3臺機器128,130,133

角色劃分:

1.3臺所有安裝elasticsearch(後續簡稱es) ,1主節點128,2數據節點130,133

2.es主128上安裝kibana

3.1臺es數據節點130上安裝logstash (beats先不裝)

4.3臺機器所有安裝jdk8(openjdk便可)

yum install -y java-1.8.0-openjdk

 

 

 

實例:

[root@axinlinux-01 ~]# vim /etc/hosts #先寫一個hosts。三臺機器都寫

192.168.208.128 axinlinux-01

192.168.208.130 axinlinux-02

192.168.208.133 axinlinux-03

[root@axinlinux-02 ~]# vim /etc/hosts

[root@axinlinux-03 ~]# vim /etc/hosts

[root@axinlinux-02 ~]# yum install -y java-1.8.0-openjdk #三個機器分別安裝opebjdk。其餘兩臺都手動安裝過啦,就不須要了

 

 

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ELK安裝 – 安裝es

 

 

官方文檔 https://www.elastic.co/guide/en/elastic-stack/current/installing-elastic-stack.html

如下操做3臺機器上都要執行

1.rpm - -import https://artifacts.elastic.co/GPG-KEY-elasticsearch

#就是搞一個yum源

簡單說就是要導入密鑰。 涉及到一個安全驗證。

https://www.cnblogs.com/musang/p/5856259.html

2.vim /etc/yum.repos.d/elastic.repo //加入以下內容

[elasticsearch-6.x]

name=Elasticsearch repository for 6.x packages

baseurl=https://artifacts.elastic.co/packages/6.x/yum

gpgcheck=1

gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch

enabled=1

autorefresh=1

type=rpm-md

3.yum install -y elasticsearch //而後安裝

若是,yum速度太慢。也能夠直接下載rpm文件,而後安裝

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.0.0.rpm

rpm -ivh elasticsearch-6.0.0.rpm

 

 

實例:

[root@axinlinux-01 ~]# rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch #三臺機器都要執行

[root@axinlinux-01 ~]# vim /etc/yum.repos.d/elastic.repo #三臺機器都要執行。文件名寫什麼均可以,關鍵是後綴名要爲.repo

[elasticsearch-6.x]


name=Elasticsearch repository for 6.x packages

baseurl=https://artifacts.elastic.co/packages/6.x/yum

gpgcheck=1


gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch

enabled=1


autorefresh=1


type=rpm-md

[root@axinlinux-01 ~]# yum list |grep elastic

apm-server.i686                             6.8.0-1                    elasticsearch-6.x
apm-server.x86_64                           6.8.0-1                    elasticsearch-6.x
auditbeat.i686                              6.8.0-1                    elasticsearch-6.x
auditbeat.x86_64                            6.8.0-1                    elasticsearch-6.x
elasticsearch.noarch                        6.8.0-1                    elasticsearch-6.x
filebeat.i686                               6.8.0-1                    elasticsearch-6.x
filebeat.x86_64                             6.8.0-1                    elasticsearch-6.x
heartbeat-elastic.i686                      6.8.0-1                    elasticsearch-6.x
heartbeat-elastic.x86_64                    6.8.0-1                    elasticsearch-6.x
journalbeat.i686                            6.8.0-1                    elasticsearch-6.x
journalbeat.x86_64                          6.8.0-1                    elasticsearch-6.x
kibana.x86_64                               6.8.0-1                    elasticsearch-6.x
kibana-oss.x86_64                           6.3.0-1                    elasticsearch-6.x
logstash.noarch                             1:6.8.0-1                  elasticsearch-6.x
metricbeat.i686                             6.8.0-1                    elasticsearch-6.x
metricbeat.x86_64                           6.8.0-1                    elasticsearch-6.x
packetbeat.i686                             6.8.0-1                    elasticsearch-6.x
packetbeat.x86_64                           6.8.0-1                    elasticsearch-6.x
pcp-pmda-elasticsearch.x86_64               4.1.0-5.el7_6              updates  
rsyslog-elasticsearch.x86_64                8.24.0-34.el7              base

elasticsearch.noarch 6.5.4-1 elasticsearch-6.x #就是這個直接yum。可是速度太慢了,能夠去官網下載的rpm包,而後再rpm -ivh的

 yum install -y elasticsearch //也能夠直接下載rpm文件,而後安裝
 wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.0.0.rpm
 rpm -ivh elasticsearch-6.0.0.rpm

yum install -y elasticsearch.noarch 6.5.4-1 elasticsearch-6.x

 

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配置es

 

 

 

elasticsearch配置文件/etc/elasticsearch和/etc/sysconfig/elasticsearch

參考https://www.elastic.co/guide/en/elasticsearch/reference/6.0/rpm.html

1.在128上(主節點)編輯配置文件vi /etc/elasticsearch/elasticsearch.yml//增長或更改

cluster.name: aminglinux #集羣的名字

node.master: true//意思是該節點爲主節點

node.data: false 意思是否是data節點。以上這兩行是要加進去的

network.host: 192.168.208.128 #在哪一個ip上監聽端口。只監聽一個內網ip就好了

discovery.zen.ping.unicast.hosts: ["192.168.133.130", "192.168.133.132", "192.168.133.133"] #定義有哪些機器。能夠寫ip。也能夠寫主機名(需定義hosts)

2.在132和133上一樣編輯配置文件vi /etc/elasticsearch/elasticsearch.yml//增長或更改

cluster.name: aminglinux

node.master: false

node.data: true

network.host: 192.168.208.130(所在機器的ip)

discovery.zen.ping.unicast.hosts: ["192.168.133.130", "192.168.133.132", "192.168.133.133"]

 

 

 

 

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ELK安裝 – 安裝x-pack(可省略、收費!)

 

 

 

3臺機器上都要執行

cd /usr/share/elasticsearch/bin/ (可省略)

./elasticsearch-plugin install x-pack //若是速度慢,就下載x-pack壓縮包(可省略)

cd /tmp/; wget https://artifacts.elastic.co/downloads/packs/x-pack/x-pack-6.0.0.zip (可省略)

./elasticsearch-plugin install file:///tmp/x-pack-6.0.0.zip (可省略)

啓動elasticsearch服務

systemctl enable elasticsearch.service

 

systemctl start elasticsearch.service

如下操做只須要在130上執行

安裝x-pack後就能夠爲內置用戶設置密碼了,以下

/usr/share/elasticsearch/bin/x-pack/setup-passwords interactive (可省略)

Sets the passwords for reserved users

Commands
--------
auto - Uses randomly generated passwords
interactive - Uses passwords entered by a user

Non-option arguments:
command              

Option         Description        
------         -----------        
-h, --help     show help          
-s, --silent   show minimal output
-v, --verbose  show verbose output
ERROR: Missing command

curl localhost:9200 -u elastic //輸入密碼,能夠查看到輸出信息(可省略)

Enter host password for user 'elastic':
{
  "name" : "axinlinux-01",
  "cluster_name" : "aminglinux",
  "cluster_uuid" : "_na_",
  "version" : {
    "number" : "6.8.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "65b6179",
    "build_date" : "2019-05-15T20:06:13.172855Z",
    "build_snapshot" : false,
    "lucene_version" : "7.7.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

 

 

 

 

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ELK安裝 – curl查看es(查看集羣是否成功)

 

 

128(主節點)上執行

curl 'localhost:9200/_cluster/health?pretty' 健康檢查(狀態)

#咱們綁定的ip是內網(192.168.208.128),因此這裏localhost要寫成192.168.208.128.若是綁定的是0.0.0.0,就能夠寫localhost

 

curl 'localhost:9200/_cluster/state?pretty'    集羣詳細信息

{
  "error" : {
    "root_cause" : [
      {
        "type" : "master_not_discovered_exception",
        "reason" : null
      }
    ],
    "type" : "master_not_discovered_exception",
    "reason" : null
  },
  "status" : 503
}

參考 http://zhaoyanblog.com/archives/732.html

 

 

 

9200端口是cluster本身自己要通訊的

9300端口是他們數據傳輸的時候用到的

 

總結:

首先要安裝rpm包(能夠yum,但比較慢),而後rpm -ivh安裝

主節點機器上配置配置文件vim /etc/elasticsearch/elasticsearch.yml

啓動不了,能夠查看日誌: 1. /var/log/masssges

2. /var/log/elasticsearch/aminglinux.log

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