NIO4444

Grok匹配多行，在头部加上：(?m)^%{WORD}

%{SPACE}*匹配不确定数量的空Logstash系列：grok 表达式开发调试工具、使用方法

USERNAME [a-zA-Z0-9._-]+ USER %{USERNAME} EMAILLOCALPART [a-zA-Z][a-zA-Z0-9_.+-=:]+ EMAILADDRESS %{EMAILLOCALPART}@%{HOSTNAME} INT (?:[+-]?(?:[0-9]+)) BASE10NUM (?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:\....

调优参数# pipeline线程数，官方建议是等于CPU内核数pipeline.workers: 8# 实际output时的线程数pipeline.output.workers: 8# 每次发送的事件数(当batch.size增大，es处理的事件数就会变少，写入也就越快了)pipeline.batch.size: 10000# 发送延时(根据实际的数据量逐渐增大来测试最优值)pipeline.batch.delay: 5扩展...

clones：克隆一个数组add_field ：新增字段 filter { clone { clones => [event] add_field => { "foo_%{somefield}" => "Hello world, from %{host}" } } }

原始数据ip=1.2.3.4 error=REFUSEDkvfilter { kv { } }结果ip: 1.2.3.4 error: REFUSED

Logstash系列： ruby拦截器的使用

Logstash系列： grok拦截器的使用

Logstash系列： mutate filter plugin日期拦截器的使用

指定某个字段作为event的时间戳。id：filter id，便于区分相同datetag_on_failure：匹配失败输出提示 # 匹配#匹配Aug 13 2010 00:03:44date { match => [ "logdate", "MMM dd yyyy HH:mm:ss", "MMM d yyyy HH:mm:ss"] tag_on_failure => ["tag_on_failure_ ma...

hot threads#CPU占用率http://192.168.40.148:9600/_node/hot_threads?pretty扩展Logstash系列：常用性能分析监控API之plugins插件信息Logstash系列：常用性能分析监控API之Node信息Logstash系列：常用性能分析监控API之Node信息...

目录node stats APIpipeline stats（重要）Eventstats（重要）reloadstatsJVM statsprocess statsOS statsnode stats APIlocalhost:9600/_node/stats/<types>pipeline stats（重要）http://192.168.40.148:9600/_node/stats/pipelines?pretty...

plugins info APIlocalhost:9600/_node/plugins?pretty{ "total": 93, "plugins": [ { "name": "logstash-codec-cef", "version": "4.1.2" }, { "name": "logstash-codec-collectd", "version": "3.0.3" }, {

目录node info APIOS infopipeline infoJVM info概要http://192.168.40.148:9600/_node/<types>node info APIhttp://192.168.40.148:9600/OS infohttp://192.168.40.148:9600/_node/os?prettypipeline infohttp://192.168.40.148...

inputs → filters → outputs.inputsfile syslog redis beat有各种各样的beat可用于采集数据：https://www.elastic.co/guide/en/logstash/7.2/input-plugins.htmlfiltersgrok: 数据格式处理 mutate: 修改event字段属性 drop: 删除events内容 clone: 克隆event geoip: 基于IP的展示 L...

date#一次匹配多个日期格式 filter { date { match => [ "logdate", "MMM dd yyyy HH:mm:ss", "MMM d yyyy HH:mm:ss", "ISO8601" ] } }drophttps://www.elastic.co/guide/en/logstash/7.2/plugins-filters-drop.html ...

output { http { url => "http://alert:port/api/" http_method => "post" }}

2+1pipeline有两个必选元素：inputandoutput，一个可选：Filter：confinput { kafka { bootstrap_servers => "192.168.40.148:9092" group_id => "logstash-es" topics => ["es"] decorate_events => false c...

pipelines.xml用于声明多个管道。文件位置文件Demo- pipeline.id: id-logstash-varlog pipeline.workers: 2 pipeline.batch.size: 8000 pipeline.batch.delay: 10 path.config: "/etc/logstash/conf.d/varlog.conf"id 管道名词workers 处理线程数（Filter、Output使用）batch...

问题Could not fetch all the sources {:exception=>LogStash::ConfigurationError, :message=>"Pipelines YAML file contains duplicate pipeline ids: [\"id-logstash-varlog\"]. Location: /etc/logstash/pipelines.yml",解决id名字重复

问题Failed to execute action LogStash::ConfigurationError解决方法pipelines.yml内配置的conf含有中文：判断依据==》Linux系列：查看linux文件是否含中文字符

下载优快云：https://download.youkuaiyun.com/download/VIP099/12373930官方：https://www.elastic.co/cn/downloads/past-releases#logstash安装rpm -ivh logstash-7.2.1.rpm配置看下安装目录cat /etc/systemd...

filter { mutate { # Renames the 'HOSTORIP' field to 'client_ip' rename => { "HOSTORIP" => "client_ip" } } }

原始数据55.3.244.1 GET /index.html 15824 0.043表达式%{IP:client} %{WORD:method} %{URIPATHPARAM:request} %{NUMBER:bytes} %{NUMBER:duration}conf input { file { path => "/var/log/http.lo...

filter { if [loglevel] == "debug" { drop { percentage => 40 } }}

filter { date { match => [ "logdate", "MMM dd yyyy HH:mm:ss" ] } }

filter { ruby { # Cancel 90% of events path => "/etc/logstash/drop_percentage.rb" script_params => { "percentage" => 0.9 } } }# the value of `params`...

/var/log/**/*.log/path/to/logs/{app1,app2,app3}/data.log

Exception in thread "main" java.lang.NullPointerException at com.example.myproject.Book.getTitle(Book.java:16) at com.example.myproject.Author.getBookTitles(Author.java:25) at ...