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  Logstash - 转换日志

  • 简述

    Logstash 提供了各种插件来转换已解析的日志。这些插件可以Add, Delete,和Update日志中的字段，以便在输出系统中更好地理解和查询。
    我们正在使用Mutate Plugin在输入日志的每一行中添加一个字段名称用户。

  • 安装变异过滤器插件

    安装变异过滤器插件；我们可以使用以下命令。 
    
>Logstash-plugin install Logstash-filter-mutate

    logstash.conf

    在此配置文件中，在 Aggregate Plugin 之后添加 Mutate Plugin 以添加新字段。 
    
input {
   file {
      path => "C:/tpwork/logstash/bin/log/input.log"
   }
} 
filter {
   grok {
      match => [ "message", "%{LOGLEVEL:loglevel} -
         %{NOTSPACE:taskid} - %{NOTSPACE:logger} -
         %{WORD:label}( - %{INT:duration:int})?" ]
   }
   if [logger] == "TRANSACTION_START" {
      aggregate {
         task_id => "%{taskid}"
         code => "map['sql_duration'] = 0"
         map_action => "create"
      }
   }
   if [logger] == "SQL" {
      aggregate {
         task_id => "%{taskid}"
         code => "map['sql_duration'] ||= 0 ; 
            map['sql_duration'] += event.get('duration')"
      }
   }
   if [logger] == "TRANSACTION_END" {
      aggregate {
         task_id => "%{taskid}"
         code => "event.set('sql_duration', map['sql_duration'])"
         end_of_task => true
         timeout => 120
      }
   }
   mutate {
      add_field => {"user" => "cainiaoya.com"}
   }
}
output {
   file {
      path => "C:/tpwork/logstash/bin/log/output.log"
   }
}

    运行 Logstash

    我们可以使用以下命令运行 Logstash。 
    
>logstash –f logstash.conf

    输入日志

    以下代码块显示了输入日志数据。 
    
INFO - 48566 - TRANSACTION_START - start
INFO - 48566 - SQL - transaction1 - 320
INFO - 48566 - SQL - transaction1 - 200
INFO - 48566 - TRANSACTION_END - end

    输出日志

    您可以看到输出事件中有一个名为“user”的新字段。 
    
{
   "path":"C:/tpwork/logstash/bin/log/input.log",
   "@timestamp":"2016-12-25T19:55:37.383Z",
   "@version":"1",
   "host":"wcnlab-PC",
   "message":"NFO - 48566 - TRANSACTION_START - start\r",
   "user":"cainiaoya.com","tags":["_grokparsefailure"]
}
{
   "duration":320,"path":"C:/tpwork/logstash/bin/log/input.log",
   "@timestamp":"2016-12-25T19:55:37.383Z","loglevel":"INFO","logger":"SQL",
   "@version":"1","host":"wcnlab-PC","label":"transaction1",
   "message":" INFO - 48566 - SQL - transaction1 - 320\r",
   "user":"cainiaoya.com","taskid":"48566","tags":[]
}
{
   "duration":200,"path":"C:/tpwork/logstash/bin/log/input.log",
   "@timestamp":"2016-12-25T19:55:37.399Z","loglevel":"INFO",
   "logger":"SQL","@version":"1","host":"wcnlab-PC","label":"transaction1",
   "message":" INFO - 48566 - SQL - transaction1 - 200\r",
   "user":"cainiaoya.com","taskid":"48566","tags":[]
}
{
   "sql_duration":520,"path":"C:/tpwork/logstash/bin/log/input.log",
   "@timestamp":"2016-12-25T19:55:37.399Z","loglevel":"INFO",
   "logger":"TRANSACTION_END","@version":"1","host":"wcnlab-PC","label":"end",
   "message":" INFO - 48566 - TRANSACTION_END - end\r",
   "user":"cainiaoya.com","taskid":"48566","tags":[]
}
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