RedisTimeSeries/RedisTimeSeries v1.4.5

1.4 GA (v1.4.5)

on GitHub

This is the General Availability release for RedisTimeSeries 1.4.

Highlights:

Ability to backfill time series! You can now add samples to a time series where the time of the sample is older than the newest sample in the series. This enables:

• Adding out of order of samples to time series.
• Batch loading of historical samples into an existing series.
• Updating existing samples (for example for compliance reasons).

This has been the most requested feature for RedisTimeSeries. We look forward to your feedback so we can move to a general availability release soon.

Details:

• Added functionality:
  • #254 TS.REVRANGE and TS.MREVRANGE [commands] allow for querying in descending order of Timestamps.(https://oss.redislabs.com/redistimeseries/1.4/commands/#tsmrangetsmrevrange)
  • #503 - RDB saves the whole chunk instead of individual samples giving a speed and space improvement when saving or loading an RDB file
  • #502 - The ability to set, at creation time, the data section size of each chunk using flag CHUNK_SIZE. TS.INFO uses chunkSize instead of maxSamplesPerChunk.
  • #437 Allow backfilling of samples and updating of existing samples
    • Works with compressed and uncompressed series.
    • This comes with a performance hit when a sample is written out-of-order. We will publish numbers once we are generally available, but are still considering optimisations.
  • #521 DUPLICATE_POLICY allows to configure on module, series and sample level how to handle duplicate samples. A duplicate sample is a sample for which the series holds already a sample on the same timestamp. Note that the default behaviour is equal to v1.2: BLOCK

Notes:
The version inside Redis will be 10405 or 1.4.5 in semantic versioning. Since the version of a module in Redis is numeric, we could not add an GA flag.