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我有两个 PiHole 实例，我试图在一个 Grafana 显示器中显示它们的统计数据。Prometheus 被用于存储 PiHole 数据。

我有一个名为“pihole_top_ads”的 Prometheus 指标，我可以从 Grafana 成功调用它，并以条形图格式显示每个 PiHole 实例返回的每个域和计数。我可以使用 Grafana 中的“混合”选项将其中两个组合起来，但这不会合并两个结果，它只列出第一组然后是第二组。不合并重复的域，这是我想要实现的。

我得到什么：

Domain "A - as seen by PiHole 1"    count
Domain "B - as seen by PiHole 1"    count
Domain "C - as seen by PiHole 1"    count
Domain "D - as seen by PiHole 1"    count
Domain "B - as seen by PiHole 2"    count
Domain "D - as seen by PiHole 2"    count
Domain "E - as seen by PiHole 2"    count    
Domain "F - as seen by PiHole 2"    count

我想要的是：

Domain "A - as seen by PiHole 1"    count
Domain "B - as seen by PiHole 1 and 2"    total count
Domain "C - as seen by PiHole 1"    count
Domain "D - as seen by PiHole 1 and 2"    total count
Domain "E - as seen by PiHole 2"    count
Domain "F - as seen by PiHole 2"    count

这是 Prometheus 函数的返回示例：

pihole_top_ads{domain="api.mixpanel.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    3
pihole_top_ads{domain="brahe.apptimize.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    1
pihole_top_ads{domain="fls-na.amazon.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    1
pihole_top_ads{domain="g.live.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    10
pihole_top_ads{domain="g.msn.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    22
pihole_top_ads{domain="go.redirectingat.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    1
pihole_top_ads{domain="graph.accountkit.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    2
pihole_top_ads{domain="self.events.data.microsoft.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    4
pihole_top_ads{domain="ssl.google-analytics.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    1
pihole_top_ads{domain="trace.svc.ui.com", hostname="192.168.11.87", instance="localhost:9617", job="pihole"}
    4

我在条形图 Grafana 面板中执行此操作，如下所示： Grafana 面板

通知 (self.events.data.microsoft.com) 出现两次。我希望合并这样的条目，并将所有条目排序在一起。

任何帮助将不胜感激。

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