-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
MinIO configured with EC does not have 2x overhead by default, and you can tune it if you have sufficient amount of disks - https://github.com/minio/minio/tree/master/docs/erasure/storage-class. That is just as an FYI, it is still understood that you are looking to eliminate overhead entirely.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.