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MetricsDB appears to be HDFS-based. TimescaleDB is Postgres-based and InfluxDB is memory and log-based. Prometheus is file-based.
by redis_mlc 6y ago
MetricsDB appears to be HDFS-based. TimescaleDB is Postgres-based and InfluxDB is memory and log-based. Prometheus is file-based.
- sytse 6y agoThanks for this clear summary of the differences.
- squarecog 6y agoWhile HDFS is indeed used for exporting old data and storing some partition mapping metadata, it's clear from the blog post that MetricsDB is much more reliant on BlobStore as well as MetricsDB-specific services. > The servers checkpoint in-memory data every two hours to durable storage, Blobstore. We are using Blobstore as durable storage so that our process can be run on our shared compute platform with lower management overhead.