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我有一个 lambda 函数,可以将指标写入Cloudwatch. 同时,它写入指标,它在日志组中生成一些日志。

INFO:: username: simran+test@abc.com ClinicID: 7667 nodename: MacBook-Pro-2.local

INFO:: username: simran+test2@abc.com ClinicID: 7669 nodename: MacBook-Pro-3.local

INFO:: username: simran+test@abc.com ClinicID: 7668 nodename: MacBook-Pro-4.local

INFO:: username: simran+test3@abc.com ClinicID: 7667 nodename: MacBook-Pro-5.local

INFO:: username: simran+test3@abc.com ClinicID: 7667 nodename: MacBook-Pro-2.local

我需要一种有效的方法来获取给定的不同值。例如,我通过for并且我期望nodenameClinicId7667ClinicId

['MacBook-Pro-2.local', 'MacBook-Pro-5.local']

这是我尝试过的:

 query = "fields @timestamp, @message | parse @message \"username: * ClinicID: * nodename: *\" as username, ClinicID, nodename | filter ClinicID = "+ clinic_id

 start_query_response = client.start_query(
        logGroupName=log_group,
        startTime=int(time.mktime((Util.utcnow() - timedelta(hours=hours)).timetuple())),
        endTime=int(time.mktime(Util.utcnow().timetuple())),
        queryString=query,
    )

我考虑过在 Python 中进行迭代start_query_response,但我不喜欢这个想法。由于7 days我将要查看的是日志,因此我需要一种有效的方法,而不必7 days为给定的ClinicID.

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1 回答 1

3

您可以将表达式通过管道传递给stat命令并计算每个节点名的出现次数。

将此添加到查询的末尾:

| stats count(*) by nodename

结果将是:

{
  'results': [
    [
      {
        'field': 'nodename',
        'value': 'MacBook-Pro-2.local\n'
      },
      {
        'field': 'count(*)',
        'value': '2'
      }
    ],
    [
      {
        'field': 'nodename',
        'value': 'MacBook-Pro-5.local\n'
      },
      {
        'field': 'count(*)',
        'value': '1'
      }
    ]
  ]
}

有关各种命令的更多详细信息,请参见此处:https ://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CWL_QuerySyntax.html

于 2019-12-13T00:36:06.963 回答