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"Similarly, M3 has rollup rules that can be applied at ingestion time, allowing specific retention storage policies to be set for the resulting rolled up metric
by camel_gopher 8y ago
"Similarly, M3 has rollup rules that can be applied at ingestion time, allowing specific retention storage policies to be set for the resulting rolled up metrics."
Are you applying these rollup rules synchronously with ingestion?
Great read; I work on TSDBs at IRONdb and there's a lot of similarities I see.
- roskilli 8y agoYeah, we apply the roll up rules at ingestion time (the coordinator has an embedded m3aggregator in process). Theo came and have a talk at our office when he was in NY one time, it was really great to dig into IRONdb and hear all about it. Many similarities for sure, unfortunately we are somewhat strict on the OS we run (so it can be standardized across the fleet) and thus we can’t really run ZFS so we have to checksum all our data ourselves, etc.