filebeat+elk日志收集平台搭建流程
1、 整体简介:
模式:单机
平台:Linux - centos - 7
ELK:elasticsearch、logstash、kibana三款开源软件的集合。
FILEBEAT:代替logstash的采集功能,轻量、耗用小。
目前收集的有nginx日志、java日志[单行|多行]。
都是通过在客户端的生成日志配置文件中定义好初步json格式,然后利用filebeat采集到logstash,存储到elasticsearch,最后通过kibana在浏览器页面中展示出来。
elasticsearch、logstash、kibana 如果是root安装,默认会创建(elasticsearch、logstash、kibana)三个单独用户来独立运行。用www用户安装好后默认是以www用户运行。本文演示用的是www。
2、 软件环境安装:
(1)、java环境:
Elasticsearch需要安装Java 8的环境。
如果没有下载jdk1.8的软件包,可以直接安装 java-1.8.0-openjdk。
(2)、下载elasticsearch(Linux版本)的二进制包并解压:
$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.0.tar.gz
$ unzip elasticsearch-6.4.0.tar.gz
$ mv elasticsearch-6.4.0 elasticsearch
$ vim elasticsearch/config/elasticsearch.yml
path.data: /data/soft/elasticsearch/data/ path.logs: /data/soft/elasticsearch/logs/ |
$ sudo sysctl -w vm.max_map_count=262144
$ vim /etc/sysctl.conf文件,添加:
vm.max_map_count=262144 |
$ sysctl -p
$ vim /etc/security/limits.conf文件,末尾添加:
* soft nproc 20536 * hard nproc 20536 * soft nofile 65536 * hard nofile 65536 |
退出重新登录生效。
将elasticsearch、logstash、kibana、filebeat的bin目录加入到环境变量PATH:
/data/soft/logstash/bin:/data/soft/kibana/bin:/data
/soft/elasticsearch/bin:/data/soft/filebeat
$ nohup elasticsearch -d >/data/soft/elasticsearch/nohup.out
2>&1 &
启动后,Elastic默认在9200端口运行。
$ curl -X GET localhost:9200或curl localhost:9200
{ "name" : "zny0iRv", "cluster_name" : "elasticsearch", "cluster_uuid" : "AErImFrFQOaoFPzNSdVmfA", "version" : { "number" : "6.4.0", "build_flavor" : "default", "build_type" : "tar", "build_hash" : "595516e", "build_date" : "2018-08-17T23:18:47.308994Z", "build_snapshot" : false, "lucene_version" : "7.4.0", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0" }, "tagline" : "You Know, for Search" } |
(3)、下载logstash(Linux版本)的二进制包并解压:
$ wget https://artifacts.elastic.co/downloads/logstash/logstash-6.4.0.zip
$ unzip logstash-6.4.0.zip logstash-6.4.0
$ mv logstash-6.4.0 logstash
$ cd logstash/config/
$ cat config/logstash.yml|grep -vE '^$|#'
# pipeline 线程数,可优化为 ---> pipeline.workers: CPU内核数(或几倍cpu内核数) pipeline.workers: 32 # 实际output 时的线程数,可优化为 ---> pipeline.output.workers: 不超过pipeline 线程数 pipeline.output.workers: 32 # 每次发送的事件数 pipeline.batch.size: 8000 # 发送延时 pipeline.batch.delay: 15 # filter设置multiline后,pipline worker会自动将为1,如果使用filebeat,建议在beat中就使用multiline,如果使用logstash作为shipper,建议在input 中设置multiline,不要在filter中设置multiline。 |
$ vim logstash.conf
input { |
beats { |
codec => json |
port => 5044 #host => “0.0.0.0” |
} |
} |
filter { |
mutate { |
remove_field => ["@version","[beat][name]","[beat][version]","[beat][hostname]","tags"] |
#remove_field => "message" |
} |
if [nx_upstream_host] != "-" { |
mutate { |
convert => {"nx_upstream_response_time"=>"float"} |
convert => {"nx_upstream_response_length"=>"integer"} |
convert => {"nx_upstream_connect_time"=>"float"} |
} |
} else { |
mutate { |
remove_field => ["nx_upstream_host","nx_upstream_response_time","nx_upstream_response_length","nx_upstream_status","nx_upstream_connect_time"] |
} |
} |
} |
output { |
# 8bet-test-srv-4:nginx |
if [project] == "8bet-admin" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "8bet-nginx-admin-%{+YYYY.MM.dd}" |
} |
} else if [project] == "8bet-h5" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "8bet-nginx-h5-%{+YYYY.MM.dd}" |
} |
} else if [project] == "8bet-newadmin" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "8bet-nginx-newadmin-%{+YYYY.MM.dd}" |
} |
} else if [project] == "8bet-newh5" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "8bet-nginx-newh5-%{+YYYY.MM.dd}" |
} |
} else if [project] == "8bet-nginx-error" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "8bet-nginx-error-%{+YYYY.MM.dd}" |
} |
# 8bet-test-srv-5:nginx |
} else if [project] == "pay-nginx-admin" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "pay-nginx-admin-%{+YYYY.MM.dd}" |
} |
} else if [project] == "pay-nginx-user" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "pay-nginx-user-%{+YYYY.MM.dd}" |
} |
} else if [project] == "pay-nginx-api" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "pay-nginx-api-%{+YYYY.MM.dd}" |
} |
} else if [project] == "pay-nginx-error" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
index => "pay-nginx-error-%{+YYYY.MM.dd}" |
} |
# 8bet-test-srv-4:java |
} else if [source] == "/log/billing/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-billing-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/billing/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-billing-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/member/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-member-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/member/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-member-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/admin/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-admin-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/admin/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-admin-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/pay/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-pay-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/pay/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-pay-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/discount/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-discount-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/discount/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-discount-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/schedule/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-schedule-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/schedule/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-schedule-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/security/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-security-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/security/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-security-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/caipiao/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-caipiao-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/caipiao/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-caipiao-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpbilling/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpbilling-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpbilling/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpbilling-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpmessage/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpmessage-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpmessage/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpmessage-error-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpschedule/info.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpschedule-info-%{+YYYY.MM.dd}" |
} |
} else if [source] == "/log/cpschedule/error.log" { |
elasticsearch { |
hosts => ["http://localhost:9200"] |
#manage_template => true |
#template_overwrite => true |
index => "8bet-java-cpschedule-error-%{+YYYY.MM.dd}" |
} |
} |
stdout { |
codec => rubydebug |
} |
} |
#output { |
# stdout { codec => rubydebug } |
# elasticsearch { |
# hosts => ["http://localhost:9200"] |
# index => "%{[@metadata][beat]}-%{[@metadata][version]}-%{+YYYY.MM}" |
# } |
#} |
检查logstash配置文件的语法命令:
$ logstash --path.settings /data/soft/logstash/config/ -f /data/soft/logstash/config/logstash.conf -t
$ nohup logstash -f /data/soft/logstash/config/logstash.conf >/data/soft/logstash/out.log 2>&1 &
(4)、下载kibana(Linux版本)的二进制包并解压:
$ wget https://artifacts.elastic.co/downloads/kibana/kibana-6.4.0-linux-x86_64.tar.gz
$ tar -zxf kibana-6.4.0-linux-x86_64.tar.gz
$ mv kibana-6.4.0-linux-x86_64 kibana
$ vim kibana/config/kibana.yml
elasticsearch.url: "http://localhost:9200" elasticsearch.shardTimeout: 0 pid.file: /data/soft/kibana/kibana.pid |
$ nohup /data/soft/kibana/bin/kibana >/data/soft/kibana/out.log 2>&1 &
3、 FILEBEAT(收集端)单独配置:
以一台filebeat采集端做示例:
(1)、nginx日志格式配置:
$ vim /data/soft/nginx/conf/nginx.conf
user www; |
worker_processes 4; |
worker_rlimit_nofile 20000; |
worker_cpu_affinity 00000001 00000010 00000100 00001000; |
error_log /log/nginx/error.log error; |
pid /log/nginx/nginx.pid; |
events { |
use epoll; |
worker_connections 20000; |
} |
http { |
include mime.types; |
default_type application/octet-stream; |
sendfile on; |
tcp_nodelay on; |
tcp_nopush on; |
client_body_timeout 10; |
client_header_timeout 10; |
send_timeout 10; |
keepalive_timeout 50; |
client_body_buffer_size 4k; |
client_header_buffer_size 1k; |
client_max_body_size 10m; |
large_client_header_buffers 2 1k; |
open_file_cache max=65535 inactive=20s; |
open_file_cache_valid 30s; |
open_file_cache_min_uses 1; |
gzip on; |
gzip_min_length 1k; |
gzip_buffers 8 16k; |
gzip_comp_level 3; |
gzip_http_version 1.1; |
gzip_disable "MSIE [1-6]."; |
gzip_types text/plain application/x-javascript text/css application/xml application/x-httpd-php image/jpeg image/gif image/png; |
gzip_vary on; # nginx需要配置的日志输出格式为json格式:代替logstash的grok过滤。 |
log_format main '{"nx_localtime@timestamp":"$time_local",' |
'"nx_host":"$server_addr",' |
'"nx_client_ip":"$remote_addr",' |
'"nx_body_size":$body_bytes_sent,' |
'"nx_request_time":$request_time,' |
'"nx_scheme":"$scheme",' |
'"nx_http_host":"$host",' |
'"nx_request_method":"$request_method",' |
'"nx_uri":"$uri",' |
'"nx_status":"$status",' |
'"nx_referer":"$http_referer",' |
'"nx_agent":"$http_user_agent",' |
'"nx_upstream_host":"$upstream_addr",' |
'"nx_upstream_response_time":"$upstream_response_time",' |
'"nx_upstream_response_length":"$upstream_response_length",' |
'"nx_upstream_status":"$upstream_status",' |
'"nx_upstream_connect_time":"$upstream_connect_time"}'; |
include vhost/*.conf; |
} |
访问nginx,查看此时nginx-log中的输出:
{"nx_localtime@timestamp":"27/Sep/2018:21:37:17 +0800","nx_host":"156.237.192.218","nx_client_ip":"113.61.62.154","nx_body_size":665,"nx_request_time":0.000,"nx_scheme":"http","nx_http_host":"log.2481888.com","nx_request_method":"GET","nx_uri":"/nginx/","nx_status":"200","nx_referer":"http://log.2481888.com/","nx_agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36","nx_upstream_host":"","nx_upstream_response_time":"","nx_upstream_response_length":"","nx_upstream_status":"","nx_upstream_connect_time":""} |
(2)、java日志格式配置:
利用spring cloud config配置中心的集中化管理java日志输出,修改统一的配置文件:
$ vim /data/www/java/log4j2.xml
<configuration status="INFO"> |
<!-- 参数配置 --> |
<properties> |
<property name="app_name">${sys:project.name}</property> |
<property name="log_path">/log/${app_name}</property> |
<!-- 文件输出格式配成json格式,方便filebeat收集,省略logsta过滤 --> |
<property name="PATTERN">{"jv_time":"%d{yyyy-MM-dd HH:mm:ss.SSS}","jv_level":"%level","jv_thread":"%thread","jv_class":"%logger","jv_method":"%M","jv_message":"%replace{%replace{%msg}{"}{\"}}{ }{|}","jv_throwable":"%replace{%replace{%xEx}{"}{\"}}{[ ]}{|}"}%n{%xEx}{none}</property> |
</properties> |
<appenders> ... ... |
重启java项目后,此时日志中的输出就变成json格式了。
{"jv_time": "2018 09 29 20:16:32.672","jv_level": "INFO","jv_thread": "MQClientFactoryScheduledThread", "jv_class": "RocketmqClient", "jv_method": "sendHeartbeatToAllBroker","jv_message": "send heart beat to broker[broker-a 0 8bet-test-srv-2:10911] success","jv_throwable": ""} |
(3)、filebeat的安装与配置:
$wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-6.4.0-linux-x86_64.tar.gz
$ tar -zxf filebeat-6.4.0-linux-x86_64.tar.gz
$ mv filebeat-6.4.0-linux-x86_64 filebeat
$ vim filebeat/filebeat.yml
filebeat.inputs: |
- type: log |
paths: |
- /log/nginx/8bet.admin.log |
fields: |
project: 8bet-admin |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: nginx |
fields_under_root: true |
- type: log |
paths: |
- /log/nginx/8bet.h5.log |
fields: |
project: 8bet-h5 |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: nginx |
fields_under_root: true |
- type: log |
paths: |
- /log/nginx/8bet.newadmin.log |
fields: |
project: 8bet-newadmin |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: nginx |
fields_under_root: true |
- type: log |
paths: |
- /log/nginx/8bet.newh5.log |
fields: |
project: 8bet-newh5 |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: nginx |
fields_under_root: true |
- type: log |
paths: |
- /log/nginx/error.log |
fields: |
project: 8bet-nginx-error |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: nginx |
fields_under_root: true |
- type: log |
paths: |
- /log/billing/info.log |
fields: |
project: 8bet-java-billing |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/billing/error.log |
fields: |
project: 8bet-java-billing |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true #error日志多行可配置项 # multiline.pattern: '^{' # multiline.negate: true # multiline.match: after |
- type: log |
paths: |
- /log/member/info.log |
fields: |
project: 8bet-java-member |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/member/error.log |
fields: |
project: 8bet-java-member |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/admin/info.log |
fields: |
project: 8bet-java-admin |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/admin/error.log |
fields: |
project: 8bet-java-admin |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/pay/info.log |
fields: |
project: 8bet-java-pay |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/pay/error.log |
fields: |
project: 8bet-java-pay |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/discount/info.log |
fields: |
project: 8bet-java-discount |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/discount/error.log |
fields: |
project: 8bet-java-discount |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/schedule/info.log |
fields: |
project: 8bet-java-schedule |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/schedule/error.log |
fields: |
project: 8bet-java-schedule |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/security/info.log |
fields: |
project: 8bet-java-security |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/security/error.log |
fields: |
project: 8bet-java-security |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/caipiao/info.log |
fields: |
project: 8bet-java-caipiao |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/caipiao/error.log |
fields: |
project: 8bet-java-caipiao |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpbilling/info.log |
fields: |
project: 8bet-java-cpbilling |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpbilling/error.log |
fields: |
project: 8bet-java-cpbilling |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpmessage/info.log |
fields: |
project: 8bet-java-cpmessage |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpmessage/error.log |
fields: |
project: 8bet-java-cpmessage |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpschedule/info.log |
fields: |
project: 8bet-java-cpschedule |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
- type: log |
paths: |
- /log/cpschedule/error.log |
fields: |
project: 8bet-java-cpschedule |
server_ip: 192.168.41.4 |
server_name: 8bet-test-srv-4 |
soft: java |
fields_under_root: true |
filebeat.config.modules: |
path: ${path.config}/modules.d/*.yml |
reload.enabled: false |
setup.template.settings: |
index.number_of_shards: 3 |
setup.kibana: |
output.logstash: |
hosts: ["8bet-test-srv-6:5044"] |
启动:
$ /data/soft/filebeat/filebeat -c /data/soft/filebeat/filebeat.yml &
PS:最后将elk和filebeat的相关命令写入到启动脚本简化操作。
4、 REST API方式操作:
常用的几种操作示例:
$ curl -XGET 'localhost:9200/_cat/health?v&pretty=true'
$ curl -XPUT 'localhost:9200/laptops'
$curl -XPUT 'localhost:9200/laptops/doc/1?pretty&pretty' -H 'Content-Type: application/json' -d ‘{ "title": "Laptop X1 i7 8gb RAM " }’
$curl -XPUT 'localhost:9200/laptops/doc/2?pretty&pretty' -H 'Content-Type: application/json' -d ‘{ "title": "Laptop X2 i5 4gb RAM " }’
$ curl -XGET 'localhost:9200/laptops/_search?pretty=true' -H 'Content-Type: application/json'
$ curl -XDELETE 'localhost:9200/laptops/?pretty=true'
5、 附录图片
filebeat发送字段:
6、 以下部分为摘录网上文档部分【提供参考】:
默认情况下,Elastic 只允许本机访问,如果需要远程访问,可以修改 Elastic 安装目录的config/elasticsearch.yml文件,去掉network.host的注释,将它的值改成0.0.0.0,然后重新启动 Elastic。
network
.host
:0.0.0.0
上面代码中,设成0.0.0.0让任何人都可以访问。线上服务不要这样设置,要设成具体的 IP。
二、基本概念
2.1 Node 与 Cluster
Elastic 本质上是一个分布式数据库,允许多台服务器协同工作,每台服务器可以运行多个 Elastic 实例。
单个 Elastic 实例称为一个节点(node)。一组节点构成一个集群(cluster)。
2.2 Index
Elastic 会索引所有字段,经过处理后写入一个反向索引(Inverted Index)。查找数据的时候,直接查找该索引。
所以,Elastic 数据管理的顶层单位就叫做 Index(索引)。它是单个数据库的同义词。每个 Index (即数据库)的名字必须是小写。
下面的命令可以查看当前节点的所有 Index。
$ curl
-X GET
'http://localhost:9200/_cat/indices?v'
2.3 Document
Index 里面单条的记录称为 Document(文档)。许多条 Document 构成了一个 Index。
Document 使用 JSON 格式表示,下面是一个例子。
{
"user":
"张三",
"title":
"工程师",
"desc":
"数据库管理"
}
同一个 Index 里面的 Document,不要求有相同的结构(scheme),但是最好保持相同,这样有利于提高搜索效率。
2.4 Type
Document 可以分组,比如weather这个 Index 里面,可以按城市分组(北京和上海),也可以按气候分组(晴天和雨天)。这种分组就叫做 Type,它是虚拟的逻辑分组,用来过滤 Document。
不同的 Type 应该有相似的结构(schema),举例来说,id字段不能在这个组是字符串,在另一个组是数值。这是与关系型数据库的表的一个区别。性质完全不同的数据(比如products和logs)应该存成两个 Index,而不是一个 Index 里面的两个 Type(虽然可以做到)。
下面的命令可以列出每个 Index 所包含的 Type。
$ curl
'localhost:9200/_mapping?pretty=true'
根据规划,Elastic 6.x 版只允许每个 Index 包含一个 Type,7.x 版将会彻底移除 Type。
三、新建和删除 Index
新建 Index,可以直接向 Elastic 服务器发出 PUT 请求。下面的例子是新建一个名叫weather的 Index。
$ curl
-X PUT
'localhost:9200/weather'
服务器返回一个 JSON 对象,里面的acknowledged字段表示操作成功。
{
"acknowledged":true,
"shards_acknowledged":true
}
然后,我们发出 DELETE 请求,删除这个 Index。
$ curl
-X DELETE
'localhost:9200/weather'
四、中文分词设置
首先,安装中文分词插件。这里使用的是 ik,也可以考虑其他插件(比如 smartcn)。
$
./bin
/elasticsearch
-plugin install https
://github
.com
/medcl
/elasticsearch
-analysis
-ik
/releases
/download
/v5
.5.1/elasticsearch
-analysis
-ik
-5.5.1.zip
上面代码安装的是5.5.1版的插件,与 Elastic 5.5.1 配合使用。
接着,重新启动 Elastic,就会自动加载这个新安装的插件。
然后,新建一个 Index,指定需要分词的字段。这一步根据数据结构而异,下面的命令只针对本文。基本上,凡是需要搜索的中文字段,都要单独设置一下。
$ curl
-X PUT
'localhost:9200/accounts'-
d
'
{
"mappings": {
"person": {
"properties": {
"user": {
"type": "text",
"analyzer": "ik_max_word",
"search_analyzer": "ik_max_word"
},
"title": {
"type": "text",
"analyzer": "ik_max_word",
"search_analyzer": "ik_max_word"
},
"desc": {
"type": "text",
"analyzer": "ik_max_word",
"search_analyzer": "ik_max_word"
}
}
}
}
}'
上面代码中,首先新建一个名称为accounts的 Index,里面有一个名称为person的 Type。person有三个字段。
- § user
- § title
- § desc
这三个字段都是中文,而且类型都是文本(text),所以需要指定中文分词器,不能使用默认的英文分词器。
Elastic 的分词器称为 analyzer。我们对每个字段指定分词器。
"user":{
"type":
"text",
"analyzer":
"ik_max_word",
"search_analyzer":
"ik_max_word"
}
上面代码中,analyzer是字段文本的分词器,search_analyzer是搜索词的分词器。ik_max_word分词器是插件ik提供的,可以对文本进行最大数量的分词。
五、数据操作
5.1 新增记录
向指定的 /Index/Type 发送 PUT 请求,就可以在 Index 里面新增一条记录。比如,向/accounts/person发送请求,就可以新增一条人员记录。
$ curl
-X PUT
'localhost:9200/accounts/person/1'-
d
'
{
"user": "张三",
"title": "工程师",
"desc": "数据库管理"
}'
服务器返回的 JSON 对象,会给出 Index、Type、Id、Version 等信息。
{
"_index":"accounts",
"_type":"person",
"_id":"1",
"_version":1,
"result":"created",
"_shards":{"total":2,"successful":1,"failed":0},
"created":true
}
如果你仔细看,会发现请求路径是/accounts/person/1,最后的1是该条记录的 Id。它不一定是数字,任意字符串(比如abc)都可以。
新增记录的时候,也可以不指定 Id,这时要改成 POST 请求。
$ curl
-X POST
'localhost:9200/accounts/person'-
d
'
{
"user": "李四",
"title": "工程师",
"desc": "系统管理"
}'
上面代码中,向/accounts/person发出一个 POST 请求,添加一个记录。这时,服务器返回的 JSON 对象里面,_id字段就是一个随机字符串。
{
"_index":"accounts",
"_type":"person",
"_id":"AV3qGfrC6jMbsbXb6k1p",
"_version":1,
"result":"created",
"_shards":{"total":2,"successful":1,"failed":0},
"created":true
}
注意,如果没有先创建 Index(这个例子是accounts),直接执行上面的命令,Elastic 也不会报错,而是直接生成指定的 Index。所以,打字的时候要小心,不要写错 Index 的名称。
5.2 查看记录
向/Index/Type/Id发出 GET 请求,就可以查看这条记录。
$ curl
'localhost:9200/accounts/person/1?pretty=true'
上面代码请求查看/accounts/person/1这条记录,URL 的参数pretty=true表示以易读的格式返回。
返回的数据中,found字段表示查询成功,_source字段返回原始记录。
{
"_index"
:
"accounts",
"_type"
:
"person",
"_id"
:
"1",
"_version"
:
1,
"found"
:
true,
"_source"
:
{
"user"
:
"张三",
"title"
:
"工程师",
"desc"
:
"数据库管理"
}
}
如果 Id 不正确,就查不到数据,found字段就是false。
$ curl
'localhost:9200/weather/beijing/abc?pretty=true'
{
"_index"
:
"accounts",
"_type"
:
"person",
"_id"
:
"abc",
"found"
:
false
}
5.3 删除记录
删除记录就是发出 DELETE 请求。
$ curl
-X DELETE
'localhost:9200/accounts/person/1'
这里先不要删除这条记录,后面还要用到。
5.4 更新记录
更新记录就是使用 PUT 请求,重新发送一次数据。
$ curl
-X PUT
'localhost:9200/accounts/person/1'-
d
'
{
"user" : "张三",
"title" : "工程师",
"desc" : "数据库管理,软件开发"
}'
{
"_index":"accounts",
"_type":"person",
"_id":"1",
"_version":2,
"result":"updated",
"_shards":{"total":2,"successful":1,"failed":0},
"created":false
}
上面代码中,我们将原始数据从"数据库管理"改成"数据库管理,软件开发"。 返回结果里面,有几个字段发生了变化。
"_version":
2,
"result":
"updated",
"created":
false
可以看到,记录的 Id 没变,但是版本(version)从1变成2,操作类型(result)从created变成updated,created字段变成false,因为这次不是新建记录。
六、数据查询
6.1 返回所有记录
使用 GET 方法,直接请求/Index/Type/_search,就会返回所有记录。
$ curl
'localhost:9200/accounts/person/_search'
{
"took":2,
"timed_out":false,
"_shards":{"total":5,"successful":5,"failed":0},
"hits":{
"total":2,
"max_score":1.0,
"hits":[
{
"_index":"accounts",
"_type":"person",
"_id":"AV3qGfrC6jMbsbXb6k1p",
"_score":1.0,
"_source":
{
"user":
"李四",
"title":
"工程师",
"desc":
"系统管理"
}
},
{
"_index":"accounts",
"_type":"person",
"_id":"1",
"_score":1.0,
"_source":
{
"user"
:
"张三",
"title"
:
"工程师",
"desc"
:
"数据库管理,软件开发"
}
}
]
}
}
上面代码中,返回结果的 took字段表示该操作的耗时(单位为毫秒),timed_out字段表示是否超时,hits字段表示命中的记录,里面子字段的含义如下。
- §
total
:返回记录数,本例是2条。 - §
max_score
:最高的匹配程度,本例是1.0
。 - §
hits
:返回的记录组成的数组。
返回的记录中,每条记录都有一个_score字段,表示匹配的程序,默认是按照这个字段降序排列。
6.2 全文搜索
Elastic 的查询非常特别,使用自己的查询语法,要求 GET 请求带有数据体。
$ curl
'localhost:9200/accounts/person/_search'-
d
'
{
"query" : { "match" : { "desc" : "软件" }}
}'
上面代码使用 Match查询,指定的匹配条件是desc字段里面包含"软件"这个词。返回结果如下。
{
"took":3,
"timed_out":false,
"_shards":{"total":5,"successful":5,"failed":0},
"hits":{
"total":1,
"max_score":0.28582606,
"hits":[
{
"_index":"accounts",
"_type":"person",
"_id":"1",
"_score":0.28582606,
"_source":
{
"user"
:
"张三",
"title"
:
"工程师",
"desc"
:
"数据库管理,软件开发"
}
}
]
}
}
Elastic 默认一次返回10条结果,可以通过size字段改变这个设置。
$ curl
'localhost:9200/accounts/person/_search'-
d
'
{
"query" : { "match" : { "desc" : "管理" }},
"size": 1
}'
上面代码指定,每次只返回一条结果。
还可以通过from字段,指定位移。
$ curl
'localhost:9200/accounts/person/_search'-
d
'
{
"query" : { "match" : { "desc" : "管理" }},
"from": 1,
"size": 1
}'
上面代码指定,从位置1开始(默认是从位置0开始),只返回一条结果。
6.3 逻辑运算
如果有多个搜索关键字, Elastic 认为它们是or关系。
$ curl
'localhost:9200/accounts/person/_search'-
d
'
{
"query" : { "match" : { "desc" : "软件 系统" }}
}'
上面代码搜索的是软件 or 系统。
如果要执行多个关键词的and搜索,必须使用布尔查询。
$ curl
'localhost:9200/accounts/person/_search'-
d
'
{
"query": {
"bool": {
"must": [
{ "match": { "desc": "软件" } },
{ "match": { "desc": "系统" } }
]
}
}
}'