Last release of 2022 :santa:

Change log

Features :ribbon:

• https://github.com/qdrant/qdrant/pull/1283 - implement an ability to lookup vectors in different collection in recommendation API. Might be useful for item-to-user recommendations, where user and item embeddings are stored in a different collection with different index configuration.

Improvements :sewing_needle:

• https://github.com/qdrant/qdrant/pull/1280 - optimize shard live-cycle operations, stop optimizer faster on deletion and remove files in async task, so the API response faster, preventing timeouts even on network-mounted disks.
• https://github.com/qdrant/qdrant/pull/1286 - Fix a list of problems, related to consensus operations, including:
  • Properly handle sync transfer cancellation
  • Replicas now have a local state, which is periodically synchronized with consensus. It allows to notify consensus of failed operations and cancelled transfers even if original notification was dropped due to leader failure.
  • Improved validation on transfer initialization - prevent creating a transfer which involved a replica, which is already being transferred
  • Fixed bug related to replica inconsistency caused by updates during transfer finish
  • Improve shards transfer workflow - prevent re-try in case if transfer was cancelled externally

Bug fixes :t-rex:

• https://github.com/qdrant/qdrant/pull/1281 - fix error code propagation in remote shards
• https://github.com/qdrant/qdrant/pull/1302 - fix id mapper inconsistency in case of interrupted flush routine