Question

我有一个简单的conf：

<source>
  @type tail
  @id in_tail_springboot_container_logs
  #path /var/log/containers/*.log
  path /var/log/logtest.txt
  #path /var/log/containers/springbootrabbitmqlistener-*.log
  pos_file /var/log/fluentd-springboot-containers.log.pos
  @log_level debug
  multiline_flush_interval 5s
  format multiline
  format1 (?<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{3})  (?<level>INFO|ERROR|WARN|TRACE|DEBUG|FATAL)\s+\[(?<app>[^\,]+),(?<zipkintraceid>[^\,]*),(?<zipkinspanid>[^\,]*),(?<zipkinsent>[^\]]*)] (?<someid>[0-9]+) --- \[(?<thread>[^\]]+)] (?<classname>[^\ ]+)\s+\: (?<text>.*)
  format_firstline ?<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{3}
  tag springboot.*
  read_from_head true
  <parse>
    @type json
    time_format %Y-%m-%dT%H:%M:%S.%NZ
  </parse>
</source>

我用输入行对其进行测试：

2018-11-09 08:49:36.111  INFO [SpringBootMicroservice,,,] 5820 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Bean with name 'environmentManager' has been autodetected for JMX exposure

我已经用https://regex101.com/对其进行了测试。

一切正常。

问题是流利的人不喜欢它：

2018-11-09 08:48:18 +0000 [warn]: #0 [in_tail_springboot_container_logs] pattern not match: "2018-11-09 08:49:36.111  INFO [SpringBootMicroservice,id1,id2,true] 5820 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Bean with name 'environmentManager' has been autodetected for JMX exposure"

你能告诉我我的conf有什么问题吗？

Answer 1

问题似乎出在这一行：

format_firstline ?<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{3}

问题在于，时间戳命名组的格式不正确-整个组都需要加上括号，如下所示：

                 ↓                                                      ↓
format_firstline (?<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3})
                                                                 ↑

为了做个好习惯，（如Regex资深手Wiktor所提到的那样），当您将.用作原义的点而不是通配符时，应避免使用它们。

模式不匹配

1 个答案: