deckhouse/prompp v2.53.2-0.2.3

on GitHub

Fixes

1. Regular Expression Handling: Fixed a bug in regular expression handling that occasionally led to out-of-bounds errors and crashes. The code handling regular expressions now has additional test coverage, including fuzz testing under ASAN, uncovering no further issues.

Features

1. Active LabelSets Copy during Rotation: Active labelSets are now copied from the previous head during a rotation. This reduces index update load during the first scrape interval post-rotation. While the rotation itself no longer impacts resource consumption, there is a slight CPU usage spike due to the compactor running afterward.
2. RemoteRead Support for Raw Chunk Data: Added support for requesting raw chunk data via the RemoteRead protocol, enabling integration with external systems like Thanos. Since Prom++ encodes chunks in the active head differently from Prometheus, chunks are re-encoded upon request. Although this is not as efficient as Prometheus, it is more cost-effective than a full data unpack via RemoteRead.

Enhancements

1. WAL Encoding Tweaks: The condition for selecting alternative timestamp encoding in the WAL encoder has been fixed. This generally results in a more compact WAL. Compatibility is maintained, and the previous incorrect condition caused no issues other than slightly increased disk usage.
2. Multi-Architecture Docker Images: Added support for building multi-architecture Docker images.
3. WAL Encoder Cleanup: Removed unused code from the WAL encoder, leading to a slight reduction in CPU usage.