FileBeat 简单介绍（并且收集本地日志数据传入到logStash 在传入到es中并且使用kibana进行日志查看）

一、FileBeat插件

https://www.cnblogs.com/zsql/...

首先filebeat是Beats中的一员。　Filebeat是用于转发和集中日志数据的轻量级传送工具。Filebeat监视您指定的日志文件或位置，收集日志事件，并将它们转发到Elasticsearch或 Logstash进行索引。

logstash与filebeat的关系：因为logstash是jvm跑的，资源消耗比较大，所以后来作者又用golang写了一个功能较少但是资源消耗也小的轻量级的logstash-forwarder。最新项目名就是filebeat了

二、filebeat原理

1、构成

由两个组件构成，分别是inputs（输入）和harvesters（收集器），

• harvester负责读取单个文件的内容。harvester逐行读取每个文件，并将内容发送到输出。
• 一个input负责管理harvesters和寻找所有来源读取。如果input类型是log，则input将查找驱动器上与定义的路径匹配的所有文件，并为每个文件启动一个harvester。每个input在它自己的Go进程中运行，Filebeat当前支持多种输入类型。每个输入类型可以定义多次。日志输入检查每个文件，以查看是否需要启动harvester、是否已经在运行harvester或是否可以忽略该文件

2、filebeat如何保存文件的状态

Filebeat保留每个文件的状态，并经常将状态刷新到磁盘中的注册表文件中。该状态用于记住harvester读取的最后一个偏移量，并确保发送所有日志行。

3、filebeat何如保证至少一次数据消费

Filebeat保证事件将至少传递到配置的输出一次，并且不会丢失数据。是因为它将每个事件的传递状态存储在注册表文件中。在已定义的输出被阻止且未确认所有事件的情况下，Filebeat将继续尝试发送事件，直到输出确认已接收到事件为止。如果Filebeat在发送事件的过程中关闭，它不会等待输出确认所有事件后再关闭。当Filebeat重新启动时，将再次将Filebeat关闭前未确认的所有事件发送到输出。这样可以确保每个事件至少发送一次，但最终可能会有重复的事件发送到输出。通过设置shutdown_timeout选项，可以将Filebeat配置为在关机前等待特定时间

三、安装

https://www.elastic.co/cn/downloads/past-releases/filebeat-7-6-2

安装windows版

四、执行操作
具体流程如下

1、启动logstash

在logstash中创建stdin.conf

input {
  beats {
        port => "5044"
    }
} 
 
output {
  elasticsearch {
      hosts => ["es的ip地址:9200"]
      index => "es_index20210311"  
  }

  stdout {
      codec => json_lines
  }
}

先启动logstash：./logstash -f stdin.conf --config.reload.automatic

2、运行filebeat

修改filebeat.yml文件

filebeat.inputs:
    - type: log
      enabled: true
       paths:
    - c:\Users\34683\AppData\Local\JetBrains\IntelliJIdea2020.3\log\idea.log
 output.logstash:
  # The Logstash hosts
  hosts: ["localhost:5044"]

再启动：./filebeat -e -c filebeat.yml -d "publish"

参考来源：https://www.cnblogs.com/peter...
https://www.cnblogs.com/peter...

注意：出现以下错误不要紧张
Non-zero metrics in the last 30s {"monitoring": {"metrics": {"beat":{"cpu":{"system":{"ticks":359},"total":{"ticks":
是input的文件没有变化了，只是一种提示，是你已近操作了，信息记录在了data中，可以直接将data文件删除探后将es日志删掉，具体意思它指的是已经将你要的数据导入到了es中，当日志没有更新就会一直刷这个。（嘿嘿，这是我自己认为的只是跑起来，具体没有深入探究了）

四、扩展
1、解决es中只有1个文档，且当异常时异常数据不在一个文档的问题，且fileds过多的问题

原因是导入时时一行行读取导入的没有进行过滤

###################### Filebeat Configuration Example #########################

# This file is an example configuration file highlighting only the most common
# options. The filebeat.reference.yml file from the same directory contains all the
# supported options with more comments. You can use it as a reference.
#
# You can find the full configuration reference here:
# https://www.elastic.co/guide/en/beats/filebeat/index.html

# For more available modules and options, please see the filebeat.reference.yml sample
# configuration file.

#=========================== Filebeat inputs =============================

filebeat.inputs:

# Each - is an input. Most options can be set at the input level, so
# you can use different inputs for various configurations.
# Below are the input specific configurations.

- type: log

  # Change to true to enable this input configuration.
  enabled: true

  # Paths that should be crawled and fetched. Glob based paths.
  paths:
    - c:\Users\34683\AppData\Local\JetBrains\IntelliJIdea2020.3\log\idea.log
  #将那些日志中，异常提醒拼接在上一行中
  multiline.pattern: '^[[:space:]]+(at|\.{3})\b|^Caused by:'    
  multiline.negate: false
  multiline.match: after
    #- /var/log/*.log
    #- c:\programdata\elasticsearch\logs\*

  # Exclude lines. A list of regular expressions to match. It drops the lines that are
  # matching any regular expression from the list.
  #exclude_lines: ['^DBG']

  # Include lines. A list of regular expressions to match. It exports the lines that are
  # matching any regular expression from the list.
  #include_lines: ['^ERR', '^WARN']

  # Exclude files. A list of regular expressions to match. Filebeat drops the files that
  # are matching any regular expression from the list. By default, no files are dropped.
  #exclude_files: ['.gz$']

  # Optional additional fields. These fields can be freely picked
  # to add additional information to the crawled log files for filtering
  #fields:
  #  level: debug
  #  review: 1

  ### Multiline options

  # Multiline can be used for log messages spanning multiple lines. This is common
  # for Java Stack Traces or C-Line Continuation

  # The regexp Pattern that has to be matched. The example pattern matches all lines starting with [
  #multiline.pattern: ^\[

  # Defines if the pattern set under pattern should be negated or not. Default is false.
  #multiline.negate: false

  # Match can be set to "after" or "before". It is used to define if lines should be append to a pattern
  # that was (not) matched before or after or as long as a pattern is not matched based on negate.
  # Note: After is the equivalent to previous and before is the equivalent to to next in Logstash
  #multiline.match: after


#============================= Filebeat modules ===============================

filebeat.config.modules:
  # Glob pattern for configuration loading
  path: ${path.config}/modules.d/*.yml

  # Set to true to enable config reloading
  reload.enabled: false

  # Period on which files under path should be checked for changes
  #reload.period: 10s

#==================== Elasticsearch template setting ==========================

setup.template.settings:
  index.number_of_shards: 1
  #index.codec: best_compression
  #_source.enabled: false

#================================ General =====================================

# The name of the shipper that publishes the network data. It can be used to group
# all the transactions sent by a single shipper in the web interface.
#name:

# The tags of the shipper are included in their own field with each
# transaction published.
#tags: ["service-X", "web-tier"]

# Optional fields that you can specify to add additional information to the
# output.
#fields:
#  env: staging


#============================== Dashboards =====================================
# These settings control loading the sample dashboards to the Kibana index. Loading
# the dashboards is disabled by default and can be enabled either by setting the
# options here or by using the `setup` command.
#setup.dashboards.enabled: false

# The URL from where to download the dashboards archive. By default this URL
# has a value which is computed based on the Beat name and version. For released
# versions, this URL points to the dashboard archive on the artifacts.elastic.co
# website.
#setup.dashboards.url:

#============================== Kibana =====================================

# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.
# This requires a Kibana endpoint configuration.
setup.kibana:

  # Kibana Host
  # Scheme and port can be left out and will be set to the default (http and 5601)
  # In case you specify and additional path, the scheme is required: http://localhost:5601/path
  # IPv6 addresses should always be defined as: https://[2001:db8::1]:5601
  #host: "localhost:5601"

  # Kibana Space ID
  # ID of the Kibana Space into which the dashboards should be loaded. By default,
  # the Default Space will be used.
  #space.id:

#============================= Elastic Cloud ==================================

# These settings simplify using Filebeat with the Elastic Cloud (https://cloud.elastic.co/).

# The cloud.id setting overwrites the `output.elasticsearch.hosts` and
# `setup.kibana.host` options.
# You can find the `cloud.id` in the Elastic Cloud web UI.
#cloud.id:

# The cloud.auth setting overwrites the `output.elasticsearch.username` and
# `output.elasticsearch.password` settings. The format is `:`.
#cloud.auth:

#================================ Outputs =====================================

# Configure what output to use when sending the data collected by the beat.

#-------------------------- Elasticsearch output ------------------------------
#output.elasticsearch:
  # Array of hosts to connect to.
  #hosts: ["localhost:9200"]

  # Protocol - either `http` (default) or `https`.
  #protocol: "https"

  # Authentication credentials - either API key or username/password.
  #api_key: "id:api_key"
  #username: "elastic"
  #password: "changeme"

#----------------------------- Logstash output --------------------------------
output.logstash:
  # The Logstash hosts
  hosts: ["localhost:5044"]

  # Optional SSL. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

#================================ Processors =====================================

# Configure processors to enhance or manipulate events generated by the beat.

processors:
  - add_host_metadata: ~
  - add_cloud_metadata: ~
  - add_docker_metadata: ~
  - add_kubernetes_metadata: ~
  - drop_fields:
      fields: ["input_type", "input.type", "agent.hostname", "agent.type", "ecs.version", "agent.ephemeral_id", "agent.id", "agent.version", "fields.ics", "log.file.path", "log.flags" ]
#================================ Logging =====================================

# Sets log level. The default log level is info.
# Available log levels are: error, warning, info, debug
#logging.level: debug

# At debug level, you can selectively enable logging only for some components.
# To enable all selectors use ["*"]. Examples of other selectors are "beat",
# "publish", "service".
#logging.selectors: ["*"]

#============================== X-Pack Monitoring ===============================
# filebeat can export internal metrics to a central Elasticsearch monitoring
# cluster.  This requires xpack monitoring to be enabled in Elasticsearch.  The
# reporting is disabled by default.

# Set to true to enable the monitoring reporter.
#monitoring.enabled: false

# Sets the UUID of the Elasticsearch cluster under which monitoring data for this
# Filebeat instance will appear in the Stack Monitoring UI. If output.elasticsearch
# is enabled, the UUID is derived from the Elasticsearch cluster referenced by output.elasticsearch.
#monitoring.cluster_uuid:

# Uncomment to send the metrics to Elasticsearch. Most settings from the
# Elasticsearch output are accepted here as well.
# Note that the settings should point to your Elasticsearch *monitoring* cluster.
# Any setting that is not set is automatically inherited from the Elasticsearch
# output configuration, so if you have the Elasticsearch output configured such
# that it is pointing to your Elasticsearch monitoring cluster, you can simply
# uncomment the following line.
#monitoring.elasticsearch:

#================================= Migration ==================================

# This allows to enable 6.7 migration aliases
#migration.6_to_7.enabled: true