how to known the collection's size and how many rows?

[huangxueliang]

is there a view to get the collections :
how much size it occupy？
how many rows it has?

[yhmo]

Row count of a collection:

res = collection.query(expr="", consistency_level="Strong", output_fields=["count(*)"])
print(res[0]["count(*)"])

No interface to know how much size it occupies. If your milvus is in cluster mode, you can deploy a monitoring system to observe: https://milvus.io/docs/monitor.md

[huangxueliang]

curl http://localhost:9091/metrics
there is show many metrics,which is the importand metrics ?

[yhmo]

All the metrics are described here, usually the latency metrics are important. You can read the doc to pick the metrics that you are interested.
https://milvus.io/docs/metrics_dashboard.md

[huangxueliang]

[huangxueliang]

how can i set the datasource in grafana?

192.168.1.134 is my milvus server(Standalone)

[huangxueliang]

do the Standalone can not use the Prometheus model monitor?