小编Sai*_*sky的帖子

我在Zabbix DB中有值,每分钟都加载到它上面.我需要一个计算不同日期的小时总计的查询,例如2013年3月20日,我有一行0:00,其中包含时间> = 0:00和<1:00的值之和,依此类推.然后我会在上午1点到凌晨2点之间有另一行.我正在使用下面的查询,但我必须不断更改时间.我正在寻找的是一个查询,它将为我生成一天中每小时的24行.请帮忙.

SELECT 
    SUM(CASE WHEN itemid = 23661
        THEN value ELSE 0 END) Hits 
    FROM history_uint WHERE 
        clock >= EXTRACT(EPOCH FROM TIMESTAMP '2013-03-24 00:00:00')
         AND clock < EXTRACT(EPOCH FROM TIMESTAMP '2013-03-24 01:00:00')

我正在尝试编写一个 lambda 来侦听来自 CloudWatch 的 Parameter Store 更改事件，并通过调用boto3.client('ssm').get_parameter_history(Name=event["name"],WithDecryption=True). 此方法失败并显示以下消息：

botocore.exceptions.ClientError: 调用GetParameterHistory 操作时发生错误(AccessDeniedException)：密文引用的客户主密钥不存在、不存在于该区域或您不被允许访问。（服务：AWSKMS；状态代码：400；错误代码：AccessDeniedException；请求 ID：等等）

下面是 lambda 的执行角色：

{
  "roleName": "myapp-paramstore-updates-webhook-role",
  "policies": [
    {
      "document": {
        "Version": "2012-10-17",
        "Statement": [
          {
            "Effect": "Allow",
            "Action": "logs:CreateLogGroup",
            "Resource": "arn:aws:logs:eu-west-1:000000000000:*"
          },
          {
            "Effect": "Allow",
            "Action": [
              "logs:CreateLogStream",
              "logs:PutLogEvents"
            ],
            "Resource": [
              "arn:aws:logs:eu-west-1:000000000000:log-group:/aws/lambda/ssm-paramstore-updates-webhook:*"
            ]
          }
        ]
      },
      "name": "LambdaBasicExeRole",
      "type": "inline"
    },
    {
      "document": {
        "Version": "2012-10-17",
        "Statement": [
          {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
              "kms:DescribeKey",
              "ssm:GetParameter"
            ],
            "Resource": [
              "arn:aws:kms:eu-west-1:000000000000:key/*",
              "arn:aws:ssm:eu-west-1:000000000000:parameter/myorg/myteam/slack/webhooks/ssm-paramstore-updates-webhook",
              "arn:aws:ssm:eu-west-1:000000000000:parameter/myorg/myteam/slack/webhooks/system-eventsupdates-webhook" …