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DalmatinerDB, InfluxDB, Prometheus and Graphite each claim their numbers based on similar benchmark methods. The results range from 500k/sec to a couple of million metrics /sec. Dr…

Those sources contain literally no technical detail. At 1.1 million metrics per second is that a 40 node druid cluster?

Most benchmarks are given a colour for reliability and link to repeatability.

No bias there then

Can you point me to a source for 'routinely stream millions of events per second into druid'? While it is true that druid is great at querying billions of rows per second it's not …

Broader comparison of the facts: https://docs.google.com/spreadsheets/d/1sMQe9oOKhMhIVw9WmuCE... Also a blog comparison: https://blog.dataloop.io/top10-open-source-time-series-data…

It's in the spreadsheet. I've not tried it and there wasn't much info available at the time of writing the blog.

Hi, I'm the original author. I think that GCE instance has 2Gb per core but I'd need to check. It wasn't bottlenecked on network bandwidth though. The other benchmarks are linked i…

I had a look at Citus when evaluating time series databases and the documents said that work was still under way on masterless setup for faster ingestion (up to 500k metrics /sec).…

I had a look at Citus when evaluating time series databases and the documents said that work was still under way on masterless setup for faster ingestion (up to 500k metrics /sec).…

The raw data in the spreadsheet, which I have continued to update and is now up to 15 databases with 30 characteristics each, is indeed applicable to both people who want to pick u…

Hi, the wording could probably use some tidying up around that part and I'm open to suggestions. However, I do think it's a big problem with columnar based time series databases. W…

Hi, that is a good point. It was all written yesterday so is pretty up to date :) I've added some dates to the top of the blog post. Thanks!

The blog discusses storage sizes with very similar maths examples. DalmatinerDB uses 1 byte of storage per point compared to at the top end Elasticsearch using 22 bytes per point. …