如何用日志时间戳替换logstash @timestamp

Question

我在日志中的时间戳格式如下

2016-04-07 18:11:38.169  which is  yyyy-MM-dd HH:mm:ss.SSS

这个日志文件不是实时文件（存储/旧文件），我试图用logstash @timestamp值替换这个timpestamp，以便在Kibana Visualization中获得更好的效果。

我在logstash中的过滤器如下所示

     grok {
       match => {
            "message" => [ "(?<timestamp>(\d){4}-(\d){2}-(\d){2} (\d){2}:(\d){2}:(\d){2}.(\d){3}) %{SYSLOG5424SD} ERROR u%{BASE16FLOAT}.%{JAVACLASS} - TransId:2b948ed5-12c0-4ae0-9b99-f1ee01191001 - TransactionId ::\"2b948ed5-12c0-4ae0-9b99-f1ee01191001\"- Actual Time taken to process \:\: %{NUMBER:responseTime:int}" ]
            } 

  }

date {
        match => [ "timestamp:date" , "yyyy-MM-dd HH:mm:ss.SSS Z"  ]
        timezone => "UTC"
        target => "@timestamp" 
         } 

但是，它没有取代@timestamp值，Json值

{
  "_index": "logstash-2017.02.09",
  "_type": "logs",
  "_id": "AVoiZq2ITxwgj2avgkZa",
  "_score": null,
  "_source": {
    "path": "D:\\SoftsandTools\\Kibana\\Logs_ActualTimetakentoprocess.log",
    "@timestamp": "2017-02-09T10:23:58.778Z", **logstash @timestamp**
    "responseTime": 43,
    "@version": "1",
    "host": "4637",
    "message": "2016-04-07 18:07:01.809 [SimpleAsyncTaskExecutor-3] ERROR s.v.wsclient.RestClient - TransId:2b948ed5-12c0-4ae0-9b99-f1ee01191001 - TransactionId ::\"2b948ed5-12c0-4ae0-9b99-f1ee01191001\"- Actual Time taken to process :: 43",
    "timestamp": "2016-04-07 18:07:01.809"   **Mine time stamp**
  }

样本日志行 -

2016-04-07 18:11:38.171 [SimpleAsyncTaskExecutor-1] ERROR s.v.wsclient.RestClient - TransId:2b948ed5-12c0-4ae0-9b99-f1ee01191001 - TransactionId ::"2b948ed5-12c0-4ae0-9b99-f1ee01191001"- Actual Time taken to process :: 521

能帮忙告诉我，我在哪里错了..

Answer 1

你应该基本上有一个grok匹配，以便使用你的日志行的timestamp：

grok {
    patterns_dir => ["give your path/patterns"]
    match => { "message" => "^%{LOGTIMESTAMP:logtimestamp}%{GREEDYDATA}" }          
}

在你的模式文件中，确保在日志中有与你的timestamp相匹配的模式，它看起来像这样：

LOGTIMESTAMP %{YEAR}%{MONTHNUM}%{MONTHDAY} %{TIME}

然后，一旦你完成了grok过滤，你就可以使用过滤后的值，如：

mutate {
    add_field => { "newtimestamp" => "%{logtimestamp}" }
    remove_field => ["logtimestamp"]
}
date {
    match => [ "newtimestamp" , "ISO8601" , "yyyy-MM-dd HH:mm:ss.SSS" ]
    target => "@timestamp"  <-- the timestamp which you wanted to apply on
    locale => "en"
    timezone => "UTC"
}

希望这可以帮助！

Answer 2

您可以使用logstash的日期过滤器插件

date {
    match => ["timestamp", "UNIX"]
}