Terminology cont'd

  • Measurement: a container for tags, fields, and the time column - similar to a table in rdbms
  • Retention policy: defintion for number of copies of data in a cluster and duration for InfluxDb to keep data before auto-eviction
  • Database: logical container for time series data, users, retention policies, and continuous queries
  • Series: definition for Measurement, Retention Policy, and Tag Set
  • Server: physical server, virtual machine, or a container running InfluxDb process
  • Node: InfluxDb process running on a server, one process per server
  • Cluster: proprietary (closed source) clustering functionality to support fault-tolerance and scalability of the database and the stream-processor

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