You are getting 10,000 metrics from each node and there are 50 nodes, that's 500,000 timeseries.
Your prometheus server will need significantly more than 500MB of RAM to handle that. See: https://www.robustperception.io/how-much-ram-does-prometheus-2-x-need-for-cardinality-and-ingestion -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to prometheus-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/111932ef-f883-4d7d-b360-8657d16c5f5c%40googlegroups.com.