YTsaurus 25.1.0 released

YTsaurus 25.1.0 is out. For more details please refer to release notes.

APIAPI

• Enhancement of operations/jobs API.
• Introduced requests memory tracking in HTTP proxies.

ComputeCompute

• Implemented permission validation for operations using access control objects.
• Gang-operations gone production. Gang-operations represent a special scheduling mode of vanilla-operations, particularly useful for distributed ML-model training.
• Introduced PatchSpec API to modify operation spec at runtime.
• [experimental] Remote copy scheduler now considers inter-cluster bandwidth limits.
• Introduced job shell for CRI-based job environments.

StorageStorage

• Supported decimal256 type.
• Supported non-materialized computed column evaluation in static tables.

Query language featuresQuery language features

• Added allow_async_replica hint to QL table descriptors to enable fallback to async replicas in selects.
• Timestamp functions in QL now support localtime and use lookup tables for better performance.
• QL AVG function now supports doubles and unsigned integers.
• Functions list_contains and list_has_intersection in QL now support strongly typed composite values and nulls.
• EXPLAIN query now works with replicated tables.

Dynamic tablesDynamic tables

• Implemented gradual global compaction (“chunk reincarnation”) for dynamic tables.
• Supported remote copy for dynamic tables with hunk chunks.

Default valuesDefault values

• Changed default read format to scan for dynamic tables.
• Enabled versioned remote copy by default.
• Enabled remote copy of hunk chunks by default.
• Enabled two-random-choices allocation strategy for write targets by default.