Release notes

Release date: 2025-03-19

To install YTsaurus Server 24.2.0 update the k8s-operator to version 0.22.0.

Known Issue

• Expanding a cluster with new master cells is temporarily disabled due to a bug. This issue will be resolved in the upcoming 25.1 version.

Scheduler and GPU

New Features & Changes:

• Added support for ACO-based access control in operations.
• Introduced get_job_trace method in the jobs API.
• Added an option to fail an operation if started in a non-existent pool.
• Enriched configuration options for offloading operations to pool trees.

Fixes & Optimizations:

• Fixed scheduling issues with new allocations immediately after operation suspension.
• Optimized fair share updates within the control thread.

Queue Agent

New Features & Changes:

• Queue exports are now considered when trimming replicated and chaos replicated table queues.
• Introduced sum aggregation for lag metrics in consumer partitions.
• Refactor queue exports: add retries and rate limiting.

Fixes & Optimizations:

• Fixed a possible queue controller suspension by adding a timeout to GetOrderedTabletSafeTrimRowCount requests.
• Corrected lock options when acquiring a shared lock for the export directory.
• Resolved expiration issues of clients for chaos queues and consumers when the cluster connection changes.

Proxy

New Features & Changes:

• Supported YAML format for structured data. See details in the RFC: YAML-format support.
• Introduced create_user_if_not_exists config flag to disable automatic user creation during OAuth authentication. Issue.
• Added cache_key_mode parameter for controlling credential caching granularity.
• Implemented a new handler for retrieving job trace events.

Fixes & Optimizations:

• The discover_proxies handler now returns an error when the proxy type is http.
• Fixed a heap buffer overflow in the Arrow parser.
• If insufficient memory is available to handle RPC responses, a retryable Unavailable error will now be returned instead of the non-retryable MemoryPressure error.
• Optimized the concatenate method.

Kafka proxy

Introduce a new component: the Kafka Proxy. This MVP version enables integration with YTsaurus queues using the Kafka protocol. It currently supports a minimal API for writing to queues and reading with load balancing through consumer groups.

Dynamic Tables

New Features & Changes:

• Introduced Versioned Remote Copy for tables with hunks.

Fixes & Optimizations:

• Fixed issues with secondary indices in multi-cell clusters (especially large clusters).
• Improved stability and performance of chaos replication.

MapReduce

New Features & Changes:

• Disallowed cluster_connection in remote copy operations.
• Introduced single-chunk teleportation for auto-merge operations.
• Merging of tables with compatible (not necessarily matching) schemas is supported.
• Refactored code in preparation for gang operation introduction.
• Refactored code to enable job-level allocation reuse.
• Improved per-job directory logging in job-proxy mode.

Fixes & Optimizations:

• Optimized job resource acquisition in exec nodes.
• Fixed cases of lost metrics in exec nodes.

Master Server

New Features & Changes:

• Added an option to fetch input/output table schemas from an external cell using a schema ID.
• Deprecated the list node type; its creation is now forbidden.
• Introduced a new write target allocation strategy using the “two random choices” algorithm.
• Implemented an automatic mechanism to disable replication to data nodes in failing data centers. This can be configured in //sys/@config/chunk_manager/data_center_failure_detector.
• Introduced pessimistic validation for resource usage increases when changing the primary medium.
• Forbidden certain erasure codecs in remote copy operations.
• Added node groups attribute for node

Fixes & Optimizations:

• Fixed a race condition between transaction coordinator commit and cell unref for exported objects, 8d6721a.
• Fixed manual Cypress node merging for Scheduler transactions, f87a2ad.
• Fixed master crash when setting a YSON dictionary with duplicate keys in a custom attribute, 0cfad80.
• Fixed row comparison in shallow merge validation to prevent job failures, 3c282d4.
• Fixed a crash when reading @local_scan_flags attribute, 5b4c954.
• Fixed non-deterministic YSON struct field loading that could cause a “state hashes differ” alert due to inconsistent error messages when multiple required fields were missing, 0553e21.
• Fixed an issue where nodes held by transactions interfered with cleanup triggered by expiration_time attribute.
• Fixed a bug that caused account metrics to break when adding a new account.
• Fixed a bug in attribute-based access control that caused the first entry to always be evaluated.
• Fixed an issue where Hydra followers could become indefinitely stuck after a lost mutation.
• Limited chunk list count per chunk merger session to prevent master overload.
• Fixed an incorrect check for the state of a node during the removal process.
• Improved incremental heartbeat reporting to prevent chunks from getting stuck in the destroyed queue.
• Optimized chunk merger by reducing unnecessary requisition updates.

Release date: 2024-11-07

To install YTsaurus Server 24.1.0 update the k8s-operator to version 0.17.0.

Scheduler and GPU

Features and changes:

• Support prioritization of pools during strong guarantee adjustment due to insufficient total cluster resources.
• Support prioritization of operations during module assignment stage of the GPU scheduling algorithm.
• Support job resource demand restrictions per pool tree.
• Add custom TTL for jobs in operation archive.
• Add user job trace collection in Trace Event Format.
• Refactor exec node config and Orchid.
• Logically separate jobs and allocations.
• Add configurable input data buffer size in jobs for more efficient interrupts.

Fixes and optimizations:

• Fix exec node heartbeat tracing throughout scheduler and controller agents.
• Optimize general allocation scheduling algorithm and fair share computation.
• Optimize scheduler <-> CA and exec node <-> CA heartbeats processing.

Queue Agent

Features:

• Treat static queue export the same way as vital consumer during queues trimming, so not exported rows will not be trimmed.
• Add functionality for banning queue agent instances via cypress attribute.
• Take cumulative data weight and timestamp from consumer meta for consumer metrics.

Fixes:

• Fix bug in handling of queues/consumers with invalid attributes (e.g. auto_trim_config).
• Fix alerts visibility from @queue_status attribute.
• Do not ignore consumers higher than queue size.
• Rename write_registration_table_mapping -> write_replicated_table_mapping in dynamic config.
• Take shared lock instead of exclusive lock on static export destination directories.

Proxy

Features:

• Implement queue producer handlers for exactly once pushing in queues (PushQueueProducer, CreateQueueProducerSession).
• Add queue_consumer and queue_producer object type handler, so they can be created without explicitly schema specification. Example: yt create queue_consumer <path>.
• Support retries of cross cell copying.
• Add float and date types in Arrow format.
• Add memory tracking for read_table requests.
• Drop heavy requests if there is no more memory.
• Send bytes_out and bytes_in metrics during request execution.
• Store cumulative_data_weight and timestamp in consumer meta.
• Rename PullConsumer -> PullQueueConsumer and AdvanceConsumer -> AdvanceQueueConsumer. Old handlers continue to exists for now for backward compatibility reasons.

CHYT:

• Add authorization via X-ClickHouse-Key HTTP-header.
• Add sticky query distribution based on session id/sticky cookie.
• Add a new "/chyt" http handler for chyt queries ("/query" handler is deprecated but still works for backward compatibility).
• Add ability to allocate a separate port for the new http handler to support queries without a custom URL path.
• The clique alias may be specified via "chyt.clique_alias" or "user" parameters (only for new handlers).
• Make HTTP GET requests read-only for compatibility with ClickHouse (only for new handlers).

Fixes:

• Fill dictionary encoding index type in Arrow format.
• Fix null, void and optional composite columns in Arrow format.
• Fix yt.memory.heap_usage metrics.

Dynamic Tables

Features:

• Secondary Indexes: basic, partial, list, and unique indexes.
• Optimize queries which group and order by same keys.
• Balance tablets using load factor (requires standalone tablet balancer).
• Shared write lock - write to same row from different transactions without blocking.
• Rpc proxy client balancer based on power of two choices algorithm.
• Compression dictionary for Hunks and Hash index.

MapReduce

Features:

• Support input tables from remote clusters in operations.
• Improve control over how data is split into jobs for ML training applications.
• Support read by latest timestamp in MapReduce operations over dynamic tables.
• Disclose less configuration information to a potential attacker.

Fixes:

• Fix teleportation of a single chunk in an unordered pool.
• Fix agent disconnect on removal of an account.
• Fix the inference of intermediate schemas for inputs with column filters.
• Fix controller agent crash on incompatible user statistic paths.

Optimizations:

• Add JobInputCache: in-memory cache on exe nodes, storing data read by multiple jobs running on the same node.

Master Server

Features:

• Tablet cells Hydra persistence data is now primarily stored at the new location //sys/hydra_persistence by default. The duality with the previous location (//sys/tablet_cells) will be resolved in the future releases.
• Support inheritance of @chunk_merger_mode after copy into directory with set @chunk_merger_mode.
• Add backoff rescheduling for nodes merged by chunk merger in case of a transient failure to merge them.
• Add an option to use the two random choices algorithm when allocating write targets.
• Add the add-maintenance command to CLI.
• Support intra-cell cross-shard link nodes.
• Propagate transaction user to transaction replicas for the sake of proper accounting of the cpu time spent committing or aborting them.
• Propagate knowledge of new master cells dynamically to other cluster components and shorten downtime when adding new master cells.

Optimizations:

• Reduce master server memory footprint by reducing the size of table nodes.
• Speed up removal jobs on data nodes.
• Move exec node tracker service away from automaton thread.
• Non-data nodes are now disposed immediately (instead of per location disposal) and independently from data-nodes.
• Offload invoking transaction replication requests from automaton thread.

Fixes:

• Fix nullptr dereferencing in resolution of queue agent and yql agent attributes.
• Respect medium override in IO engine on node restart.
• Fix rebalancing mode in table's chunk tree after merging branched tables.
• Fix sanitizing hostnames in errors for cellar nodes.
• Fix losing trace context for some callbacks and rpc calls.
• Fix persistence of @last_seen_time attribute for users.
• Fix handling unknown chunk meta extensions by meta aggregating writer.
• Fix nodes crashing on heartbeat retries when masters are down for a long time.
• Fix table statistics being inconsistent between native and external cells after copying the table mid statistics update.
• Fix logical request weight being accidentally dropped in proxying chunk service.
• Fix a crash that occasionally occurred when exporting a chunk.
• Fix tablet cell lease transactions getting stuck sometimes.
• Native client retries are now more reliable.
• Fix primary cell chunk hosting for multicell.
• Fix crash related to starting incumbency epoch until recovery is complete.
• Restart elections if changelog store for a voting peer is locked in read-only (Hydra fix for tablet nodes).
• Fix crashing on missing schema when importing a chunk.
• Fix an epoch restart-related crash in expiration tracker.
• In master cell directory, alert on an unknown cell role instead of crashing.

Misc

Features:

• Add ability to redirect stdout to stderr in user jobs (redirect_stdout_to_stderr option in operation spec).
• Add dynamic table log writer.

Release date: 2024-07-31

Scheduler and GPU

Features:

• Disable writing //sys/scheduler/event_log by default.
• Add lightweight running operations.

Fixes:

• Various optimizations in scheduler
• Improve total resource usage and limits profiling.
• Do not account job preparation time in GPU statistics.

Queue Agent

Fixes:

• Normalize cluster name in queue consumer registration.

Proxy

Features:

• RPC proxy API for Query Tracker.
• Changed format and added metadata for issued user tokens.
• Support rotating TLS certificates for HTTP proxies.
• Compatibility with recent Query Tracker release.

Fixes:

• Do not retry on Read-Only response error.
• Fix standalone authentication token revokation.
• Fix per-user memory tracking (propagate allocation tags to child context).
• Fix arrow format for optional types.

Dynamic Tables

Features:

• Shared write locks.
• Increased maximum number of key columns to 128.
• Implemented array join in YT QL.

Fixes:

• Cap replica lag time for tables that are rarely written to.
• Fix possible journal record loss during journal session abort.
• Fix in backup manager.
• Fix some bugs in chaos dynamic table replication.

MapReduce

Features:

• Combined per-locaiton throttlers limiting total in+out bandwidth.
• Options in operation spec to force memory limits on user job containers.
• Use codegen comparator in SimpleSort & PartitionSort if possible.

Fixes:

• Better profiling tags for job proxy metrics.
• Fixes for remote copy with erasure repair.
• Fix any_to_composite converter when multiple schemas have similarly named composite columns.
• Fixes for partition_table API method.
• Fixes in new live preview.
• Do not fail jobs with supervisor communication failures.
• Multiple retries added in CRI executor/docker image integration.
• Cleaned up job memory statistics collection, renamed some statistics.

Master Server

Features:

• Parallelize and offload virtual map reads.
• Emergency flag to disable attribute-based access control.
• Improved performance of transaction commit/abort.
• Enable snapshot loading by default.

Fixes:

• Fixes and optimizations for Sequoia chunk replica management.
• Fix multiple possible master crashes.
• Fixes for master update with read-only availability.
• Fixes for jammed incremental hearbeats and lost replica update on disabled locations.
• Fix per-account sensors on new account creation.

Misc

Features:

• Config exposure via orchid became optional.
• Support some c-ares options in YT config.
• Support IP addresses in RPC TLS certificate verification.

Fixes:

• Fix connection counter leak in http server.
• Track and limit memory used by queued RPC requests.
• Better memory tracking for RPC connection buffers.
• Fix address resolver configuration.

Release date: 2024-02-29

Scheduler

Many internal changes driven by developing new scheduling mechanics that separate jobs from resource allocations at exec nodes. These changes include modification of the protocol of interaction between schedulers, controller agents and exec nodes, and adding tons of new logic for introducing allocations in exec nodes, controller agents and schedulers.

List of significant changes and fixes:

• Optimize performance of scheduler's Control and NodeShard threads.
• Optimize performance of the core scheduling algorithm by considering only a subset of operations in most node heartbeats.
• Optimize operation launch time overhead by not creating debug transaction if neither stderr or core table have been specified.
• Add priority scheduling for pools with resource guarantees.
• Consider disk usage in job preemption algorithm.
• Add operation module assignment preemption in GPU segments scheduling algorithm.
• Add fixes for GPU scheduling algorithms.
• Add node heartbeat throttling by scheduling complexity.
• Add concurrent schedule job exec duration throttling.
• Reuse job monitoring descriptors within a single operation.
• Support monitoring descriptors in map operations.
• Support filtering jobs with monitoring descriptors in list_jobs command.
• Fix displaying jobs which disappear due to a node failure as running and "stale" in UI.
• Improve ephemeral subpools configuration.
• Hide user tokens in scheduler and job proxy logs.
• Support configurable max capacity for pipes between job proxy and user job.

Queue Agent

Aside small improvements, the most significant features include the ability to configure periodic exports of partitioned data from queues into static tables and the support for using replicated and chaos dynamic tables as queues and consumers.

Features:

• Support chaos replicated tables as queues and consumers.
• Support snapshot exports from queues into static tables.
• Support queues and consumers that are symbolic links for other queues and consumers.
• Support trimming of rows in queues by lifetime duration.
• Support for registering and unregistering of consumer to queue from different cluster.

Fixes:

• Trim queues by its object_id, not by path.
• Fix metrics of read rows data weight via consumer.
• Fix handling frozen tablets in queue.

Proxy

Features:

• Add ability to call pull_consumer without specifying offset, it will be taken from consumer table.
• Add advance_consumer handler for queues.
• Early implementation of arrow format to read/write static tables.
• Support type conversions for inner fields in complex types.
• Add new per user memory usage monitoring sensors in RPC proxies.
• Use ACO for RPC proxies permission management.
• Introduce TCP Proxies for SPYT.
• Support of OAuth authorization.

Fixes:

• Fix returning requested system columns in web_json format.

Dynamic Tables

Features:

• DynTables Query language improvments:
  • New range inferrer.
  • Add various SQL operators (<>, string length, ||, yson_length, argmin, argmax, coalesce).
• Add backups for tables with hunks.
• New fair share threadpool for select operator and network.
• Add partial key filtering for range selects.
• Add overload controller.
• Distribute load among rpc proxies more evenly.
• Add per-table size metrics.
• Store heavy chunk meta in blocks.

MapReduce

Features:

• RemoteСopy now supports cypress file objects, in addition to tables.
• Add support for per job experiments.
• Early implementation of CRI (container runtime interface) job environment & support for external docker images.
• New live preview for MapReduce output tables.
• Add support for arrow as an input format for MapReduce.
• Support GPU resource in exec-nodes and schedulers.

Enhancements:

• Improve memory tracking in data nodes (master jobs, blob write sessions, p2p tracking).
• Rework memory acccounting in controller agents.

Master Server

Noticeable/Potentially Breaking Changes:

• Read requests are now processed in a multithreaded manner by default.
• Read-only mode now persists between restarts. yt-admin master-exit-read-only command should be used to leave it.
• list_node type has been deprecated. Users are advised to use map_nodes or documents instead.
• ChunkService::ExecuteBatch RPC call has been deprecated and split into individual calls. Batching chunk service has been superseded by proxying chunk service.
• New transaction object types: system_transaction, nested_system_transaction. Support for transaction actions in regular Cypress transactions is now deprecated.
• Version 2 of the Hydra library is now enabled by default. Version 1 is officially deprecated.

Features:

• It is now possible to update master-servers with no read downtime via leaving non-voting peers to serve read requests while the main quorum is under maintenance.
• A data node can now be marked as pending restart, hinting the replicator to ignore its absence for a set amount of time to avoid needless replication bursts.
• The add_maintenance command now supports HTTP- and RPC-proxies.
• Attribute-based access control: a user may now be annotated with a set of tags, while an access-control entry (ACE) may be annotated with a tag filter.

Optimizations & Fixes:

• Response keeper is now persistent. No warm-up period is required before a peer may begin leading.
• Chunk metadata now include schemas. This opens up a way to a number of significant optimizations.
• Data node heartbeat size has been reduced.
• Chunks and chunk lists are now loaded from snapshot in parallel.
• Fixed excessive memory consumption in multicell configurations.
• Accounting code has been improved to properly handle unlimited quotas and avoid negative master memory usage.

Additionally, advancements have been made in the Sequoia project dedicated to scaling master server by offloading certain parts of its state to dynamic tables. (This is far from being production-ready yet.)

Misc

Enhancements:

• Add rpc server config dynamization.
• Add support for peer alternative hostname for Bus TLS.
• Properly handle Content-Encoding in monitoring web-server.
• Bring back "host" attribute to errors.
• Add support for --version option in ytserver binaries.
• Add additional metainformation in yson/json server log format (fiberId, traceId, sourceFile).

Release date: 2025-04-08

Features

• Added possibility to ban QT\YQLA
• Added QT\YQLA custom metrics
• Added YQLA dynamic configuration
• Added clickhouse UDF
• Added possibility to specify extra credentials for YQL queries
• Added possibility to configure YQL default cluster per query
• Added full result table in YQL queries results (available from 25.1 proxies)
• Supported unicode symbols in SPYT queries
• Supported results truncation in SPYT queries

Improvements

• Optimized QT API calls
• Limited max simultaneous queries per YQLA
• Configured QT dyntables compaction

Fixes

• Fixed YQL queries abortion
• Fixed completing of queries with results over 16MB
• Fixed query completion after responsible qt crash
• Fixed yqla deadlock

NB! This release is only compatible with proxy version 24.1.0, operator version 0.23.1 and later
https://github.com/ytsaurus/ytsaurus/releases/tag/docker%2Fytsaurus%2F24.1.0
https://github.com/ytsaurus/ytsaurus-k8s-operator/releases/tag/release%2F0.23.1

Release date: 2024-08-26

• Optimized Query Tracker API performance by adding system tables indexes. Issue: #653
• Added support of SystemPython udfs in YQL queries. Issue: #265
• Fixed broken logs compression in YQL agent. Issue: #623
• Optimized simultaneous YQL queries performance
• Fixed memory leak in YQL Agent
• Important fix. Fixed YQL queries results corruption in DQ. Issue: #707
• Added DQ support in dual stack networks. Issue: #744

Release date: 2024-08-01

• Important fix. Fixed YQL queries results corruption. Issue: https://github.com/ytsaurus/ytsaurus/issues/707
• Fixed YQL DQ launching
• Fixed bug caused UTF-8 errors in yql-agent logs
• Fixed multiple deadlocks in yql-agent
• Added support for SPYT discovery groups
• Added support for SPYT queries parameters
• Added everyone-share ACO which can be used to share queries by link.
• Added support of multiple ACOs per query, feature will be available in fresh UI, SDK releases
• Changed interaction between Query Tracker and Proxies

NB! This release is only compatible with proxy version 23.2.1, operator version 0.10.0 and later
https://github.com/ytsaurus/ytsaurus/releases/tag/docker%2Fytsaurus%2F23.2.1
https://github.com/ytsaurus/ytsaurus-k8s-operator/releases/tag/release%2F0.10.0

Release date: 2024-04-11

• Fixed authorization in complex cluster-free YQL queries
• Fixed a bug that caused queries with large queries to never complete
• Fixed a bag caused possibility of SQL injection in query tracker
• Reduced the size of query_tracker docker images

Related issues:

• Problems with QT ACOs

In case of an error when starting query

Access control object "nobody" does not exist

You need to run commands by admin

yt create access_control_object_namespace --attr '{name=queries}'
yt create access_control_object --attr '{namespace=queries;name=nobody}'

Release date: 2024-03-19

• Added access control to queries
• Added support for the in‑memory DQ engine that accelerates small YQL queries
• Added execution mode setting to query tracker. This allows to run queries in validate and explain modes
• Fixed a bug that caused queries to be lost in query_tracker
• Fixed a bug related to yson parsing in YQL queries
• Reduced the load on the state dyntables by QT
• Improved authentication in YQL queries.
• Added authentication in SPYT queries
• Added reuse of spyt sessions. Speeds up the sequential launch of SPYT queries from a single user
• Changed the build type of QT images from cmake to ya make

NB:

• Compatible only with operator version 0.6.0 and later
• Compatible only with proxies version 23.2 and later
• Before updating, please read the documentation section containing information about the new query access control.

New related issues:

• Problems with QT ACOs

In case of an error when starting query

Access control object "nobody" does not exist

You need to run commands by admin

yt create access_control_object_namespace --attr '{name=queries}'
yt create access_control_object --attr '{namespace=queries;name=nobody}'

Release date: 2023-12-03

• Applied YQL defaults from the documentation
• Fixed a bag in YQL queries that don't use YT tables
• Fixed a bag in YQL queries that use aggregate functions
• Supported common UDF functions in YQL

NB: This release is compatible only with the operator 0.5.0 and newer versions.
https://github.com/ytsaurus/yt-k8s-operator/releases/tag/release%2F0.5.0

Release date: 2023-11-14

• Fixed a bug that caused the user transaction to expire before the completion of the yql query on IPv4 only networks.
• System query_tracker tables have been moved to sys bundle

Release date: 2023-10-19

• Added authentication, now all requests are run on behalf of the user that initiated them.
• Added support for v3 types in YQL queries.
• Added the ability to set the default cluster to execute YQL queries on.
• Changed the format of presenting YQL query errors.
• Fixed a bug that caused errors during the execution of queries that did not return any result.
• Fixed a bug that caused errors during the execution of queries that extracted data from dynamic tables.
• Fixed a bug that caused memory usage errors. YqlAgent no longer crashes for no reason under the load.

Release date: 2025-04-08

General Updates

Features:

• Improved support for Jupyter operations. Thanks to @dmi-feo and @thenno for the PRs!
• Added restart command to the controller. (Commit: 7eef7be610082c92ab7608fbebe58f64bf4db42d)
• Added location-based overriding of the strawberry config. (Commit: 53761978b238167d340a4c4f0ef8309a3555941d)
• Added the pool_trees speclet option. (Commit: 26a36552dcd47b4126e21b226532dd1b9c6c551a)
• Added a filters parameter to the list command. (Commit: 007a51cc8364fca85cb8c680b39265dffc76ceda)
• Added a config option to grant the administer right to the operation creator. (Commit: 40e9bff15e07d6128bd27b4e77963fe793312bd9)

Fixes:

• Fixed panic on initialization if the cluster is unavailable. (Commit: b567f1737aeadd3c1ee0eba0d7bc7b46ec66a789)

CHYT

• Added an option to disable the export of runtime data from CHYT operations and an explicit expiration timeout for exported data. (Commit: 58d91c249ee4aaf7d7be3070af58569f5f2ad1b9)
• Changed the default read_from option in AttributeCache. (Commit: 33de404dcce77593968fa45d548bf9ebceb3204e)

SPYT

• Added Squashfs support for Livy via strawberry. (Commit: 15c08cd668eacdf57312dc9bcb01452faa82ce7d)
• Specified yt token for Livy operations. (Commit: c91680616715f65da1855669e082a914f9909973)

Jupyter

• Added GPU support in Jupyter operations. (Commit: 935e0a5a7c2ffd4a45d3e4260f9aea9d4534a8c0)
• Added job scaler interface and used it to suspend inactive Jupyter operations. (Commit: e4b7df0c0213644f54af6411ed06b2bc34576059)

Release date: 2024-06-21

CHYT:

• Make enable_geodata default value configurable and set to false by default (PR: #667). Thanks @thenno for the PR!
• Configure system log tables exporter during the clique start

Livy:

• Add SPYT Livy support to the controller

Release date: 2024-11-06

• Support ClickHouse query cache (may be configured via clickhouse_config)
• Read in order optimization (PR #757)
• New PREWHERE algorithm on a data conversion level, turned on by default
• Convert bool data type to Bool instread of YtBoolean. YtBoolean type is deprecated
• Convert dict data type to Map instead of Array(Typle(Key, Value))
• Convert timestamp data type to DateTime64 instead of UInt64
• Support reading and writing date32, datetime64, timestamp64, interval64 data types
• Support reading json data type as String
• Support JSON_* functions from ClickHouse
• The ability to specify a cypress directory as a database
• Support exporting system log tables to cypress (query_log, metric_log, etc)

Note: date32, datetime64, timestamp64 and interval64 were introduced in YTsaurus 24.1. If the YTsaurus cluster version is older, trying to store these data types in a table will lead to a not a valid type error.

Release date: 2024-02-15

• Support SQL UDFs
• Support reading dynamic and static tables via concat-functions

Release date: 2024-01-19

• Update ClickHouse code version to the latest LTS release (22.8 -> 23.8)
• Support for reading and writing ordered dynamic tables
• Move dumping query registry debug information to a separate thread
• Configure temporary data storage

Release date: 2025-05-16

Maintenance release with minor enhancements and bug fixes

• Support for retrieving driver operation id in direct submit scenarios
• Reducing YTsaurusClient threads by reusing client instances
• Fix JSON layout for log4j2
• Transaction titles for SPYT transactions
• Fix prometeus metrics configuration
• Fix dedicated driver mode for standalone cluster

Release date: 2025-04-23

• Java 17 support
• Support for UUID and Json YTsaurus types
• Support for RPC-job proxy in direct submit
• Support for additional task parameters in YTsaurus operation specification via Spark config in direct submit
• Support for taking snapshots locks at reading time
• Explicit flag for truncated result of Query Tracker queries
• Fix compatibility with Spark 3.5.4 and 3.5.5
• Fix for date- and timestamp SQL-functions via Query Tracker
• Many stability and other bug fixes

Release date: 2024-12-25

Major release that enables support for Spark 3.4.x and 3.5.x.

• Compile-time Spark version is changed from 3.2.2 to 3.5.4;
• SPYT compile-time Spark version will be the latest available supported version since this release;
• Backward compatibility is still preserved down to Spark 3.2.2;
• Unit tests can be run over different Spark version than used at compile time via -DtestSparkVersion=3.x.x sbt flag

Release date: 2024-12-20

Maintenance release with bug fixes:

• Providing network project for Livy via command line argument

Release date: 2024-12-16

Maintenance release with bug fixes:

• Specifying network project for direct submit and setting it from Livy
• Fix read and write for structs with float value using Dataset API

Release date: 2024-12-06

Maintenance release with bug fixes:

• Autocast DatetimeType to TimestampType in spark udf
• Add parsing spark.executorEnv and spark.ytsaurus.driverEnv and set SPARK_LOCAL_DIRS
• Fix worker_disk_limit and worker_disk_account parameters for standalone cluster
• Using compatible SPYT versions instead of latest for direct submit
• Separate proxy role into client (spark.hadoop.yt.proxyRole) and cluster (spark.hadoop.yt.clusterProxyRole)
• Add flag spark.ytsaurus.driver.watch for watching driver operation
• Fix reading Livy logs

Release date: 2024-11-12

Maintenance release with bug fixes:

• Fix creating tables via Spark SQL without explicitly specifying ytTable schema
• Fix serializing and deserializing nested time types
• Fix casting NULL in nested data structures

Release date: 2024-10-31

• Support for running local files and their dependencies in direct submit mode by uploading it to YTsaurus cache
• Support for submitting compiled python binaries as spark applications via direct submit
• Dataframe write schema hints
• Bug fixes:
• • Writing to external S3 from YTsaurus
• • Reading float values from nested structures
• • Columnar format reading for Spark 3.3.x
• • Reading arbitrary files from Cypress when using Spark 3.3.x

Release date: 2024-09-11

The major feature of SPYT 2.3.0 is support for Spark 3.3.x. Other notable features are:

• Support for extended Datetime types such as Date32, Datetime32, Timestamp64, Interval64;
• Support for table properties in Spark SQL;
• Support for writing using Hive partitioning schema;
• Support for specifying random port for Shuffle service in inner standalone cluster;
• Fix for runtime statistics;
• Bug-Fixes for user-provided schema and for dataframes persisting.

Release date: 2024-08-14

• Support for reading from multiple YTsaurus clusters
• Supplying annotations for YTsaurus operations via conf parameters
• Support for specifying custom schema on read
• Support for --archives parameter in spark-submit
• Fix for int8 and int16 as nested fields
• Transactional read fix
• Other minor fixes

Release date: 2024-06-19

• Support for running applications using GPU
• Support for Spark versions 3.2.2-3.2.4
• History server support for direct submit scenarios
• Support for https and TCP proxy in direct submit scenarios
• Other minor fixes and improvements

Release date: 2024-05-29

SPYT 2.0.0 is the first release under the new release scheme and in the separate ytsaurus-spyt repository. The main feature of this release is that we have finally switched from Apache Spark fork that was used in previous releases to original Apache Spark distributive. The 2.0.0 SPYT release is still using Apache Spark 3.2.2, but we plan to support all Apache Spark 3.x.x releases in the nearest future!

Other notable changes are:

• Support for direct submit on using Livy via Query Tracker;
• Split data-source module into data-source-base that uses standard Spark types for all YTsaurus types, and data-source-extended for our implementation of custom YTsaurus types that don't have direct matches in Spark type system;
• Support for direct submit from Jupyter notebooks;
• Custom UDT for YTsaurus datetime type.

Release date: 2025-05-20

Minor

• Rerun init queue agent script during QA update by @savnadya in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/479

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.23.1...release/0.24.0

Release date: 2025-04-04

Minor

• Revert "Disable stockpile by default" in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/477

The change introduced in 0.23.0 was reverted due to the fact it ends up in updating all components of all existing clusters on the operator update, but change is not important. We'll consider making it opt-in in the next releases.

Release date: 2025-04-02

Minor

• Fix bug in blocked components column by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/464
• Deleted the stderr logger for JobProxy. by @imakunin in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/465
• Set init quota for user-defined mediums by @futujaos in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/466
• Disable stockpile by default by @imakunin in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/467
• tablet node tag filter for bundles in bootstrap by @futujaos in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/468
• Create ROADMAP.md by @AMRivkin in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/473
• Configure yqla mrjob syslibs V2 by @Krisha11 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/475

Release notes

• configureMrJobSystemLibs field was removed https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/475 and now system libs for YQL agent are being added unconditionally.
• stockpile/thread_count is set to zero in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/467 to remove non-relevant warnings in logs, as a downside it will trigger all components update.

New Contributors

• @futujaos made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/466
• @AMRivkin made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/473

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.22.0...release/0.23.0

Release date: 2025-03-07

Features

• Update to YTsaurus 24.2 is supported

Minor

• Add lost CA bundle and TLS secrets VolumeMounts for jobs container by @imakunin in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/449
• Add bus client configuration by @imakunin in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/450

Experimental

• Add multiple update selectors by @wilwell in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/383
• Add blocked components column to kubectl output by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/459

New Contributors

• @imakunin made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/449

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.21.0...release/0.22.0

Release date: 2025-02-10

Features

• Support the ability to deploy a Kafka proxy by @savnadya in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/407

Minor

• Add config for kind with audit log by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/441

Bugfix

• Preserve object finalizers by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/440
• Set quota and min_disk_space for locations by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/445
• Fix zero port if no monitoring port configured by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/447

Release date: 2025-01-20

Minor

• Support not creating non-existing users by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/416
• Added DNSConfig into Instance and YTsaurusSpec by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/420
• Enable real chunks job by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/412
• Add log_manager_template for job proxy by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/428

Release notes

This release makes yt operator compatible with ytsaurus 24.2.
Update to this version will launch job for setting correct enable_real_chunks_value values in cypress and exec nodes will be updated with a new config.

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.19.0...release/0.20.0

Release date: 2025-01-09

Minor

• Configure yqla mrjob syslibs by @Krisha11 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/409

Bugfix

• Add yqla update job by @Krisha11 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/387

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.18.1...release/0.19.0

Release date: 2024-12-13

Minor

• more validation by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/393

Bugfix

• Fix updates for named cluster components @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/401

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.18.0...release/0.18.1

Release date: 2024-11-26

Warning

This release has known bug, which broke update for YTsaurus components with non-empty names (names can be set for data/tablet/exec nodes) and roles (can be set for proxies).
The bug was fixed in 0.18.1.

Features

• Implemented RemoteTabletNodes api by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/372

Minor

• Update sample config for cluster with TLS by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/369
• Remove DataNodes from StatelesOnly update by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/371
• Added namespacedScope value to the helm chart by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/376
• Upgrade crd-ref-docs by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/379
• Add observed generation for remote nodes by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/382
• Support different controller families in strawberry configuration by @dmi-feo in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/355
• kata-compat: mount TLS-related files to a separate directory by @kruftik in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/388
• Support OAuth login transformations by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/397
• Add diff for static config update case by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/398

Bugfix

• Fix observed generation by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/373
• Fix YQL agent dynamic config creation by @savnadya in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/377
• Fix logging in chyt_controller by @dmi-feo in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/370
• Fix strawberry container name by @dmi-feo in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/375
• Use expected instance count as default for minimal ready count by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/395

New Contributors

• @dmi-feo made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/370

Full Changelog: https://github.com/ytsaurus/ytsaurus-k8s-operator/compare/release/0.17.0...release/0.18.0

Release date: 2024-10-11

Minor

• Separate CHYT init options into makeDefault and createPublicClique by @achulkov2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/347

Bugfix

• Fix queue agent init script usage for 24.* by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/356

Release date: 2024-09-13

Bugfix

• Fix strawberry controller image for 2nd job by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/345

Release date: 2024-09-13

Warning

This release has a bug if Strawberry components is enabled.
Use 0.16.2 instead.

Bugfix

• Revert job image override for UI/strawberry by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/344 — the bug was introduced in 0.16.0

Release date: 2024-09-12

Warning

This release has a bug for a configuration where UI or Strawberry components are enabled and some of their images were overridden (k8s init jobs will fail for such components).
Use 0.16.2 instead.

Minor

• Add observedGeneration field to the YtsaurusStatus by @wilwell in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/333
• Set statistics for job low cpu usage alerts by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/335
• Add nodeSelector for UI and Strawberry by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/338
• Init job creates from InstanceSpec image if specified by @wilwell in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/336
• Add tolerations and nodeselectors to jobs by @l0kix2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/342

New Contributors

• @wilwell made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/333

Release date: 2024-09-04

Backward incompatible changes

1. Component pod labels were refactored in #326 and changes are:

• app.kubernetes.io/instance was removed
• app.kubernetes.io/name was Ytsaurus before, now it contains component type
• app.kubernetes.io/managed-by is "ytsaurus-k8s-operator" instead of "Ytsaurus-k8s-operator"

2. Deprecated chyt field in the main YTsaurus spec was removed, use strawberry field with the same schema instead.

Minor

• Added tolerations for Strawberry by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/328
• Refactor label names for components by @achulkov2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/326

Experimental

• RemoteDataNodes by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/330

Release date: 2024-08-22

Backward incompatible changes

Before this release StrawberryController was unconditionally configured with {address_resolver={enable_ipv4=%true;enable_ipv6=%true}} in its static config. From now on it respects common useIpv6 and useIpv4 fields, which can be set in the YtsaurusSpec.
If for some reason it is required to have configuration different from

useIpv6: true
useIpv4: true

for the main Ytsaurus spec and at the same time enable_ipv4=%true;enable_ipv6=%true for the StrawberryController, it is possible to achieve that by using configOverrides ConfigMap with

data:
    strawberry-controller.yson: |
    {
      controllers = {
        chyt = {
          address_resolver = {
            enable_ipv4 = %true;
            enable_ipv6 = %true;
          };
        };
      };
    }

Minor

• Add no more than one ytsaurus spec per namespace validation by @qurname2 in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/305
• Add strategy, nodeSelector, affinity, tolerations by @sgburtsev in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/321
• Add forceTcp and keepSocket options by @leo-astorsky in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/324

Bugfixes

• Fix empty volumes array in sample config by @koct9i in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/318

New Contributors

• @leo-astorsky made their first contribution in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/324

Release date: 2024-07-30

Bugfixes

• Revert deprecation of useInsecureCookies in #310 by @sgburtsev in https://github.com/ytsaurus/ytsaurus-k8s-operator/pull/317

The field useInsecureCookies was deprecated in the previous release in a not backwards compatible way, this release fixes it. It is now possible to configure the secureness of UI cookies (via the useInsecureCookies field) and the secureness of UI and HTTP proxy interaction (via the secure field) independently.

Release date: 2024-07-23

Features

• Add per-component terminationGracePeriodSeconds by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/304
• Added externalProxy parameter for UI by @sgburtsev in https://github.com/ytsaurus/yt-k8s-operator/pull/308
• Size as Quantity in LogRotationPolicy by @sgburtsev in https://github.com/ytsaurus/yt-k8s-operator/pull/309
• Use secure instead of useInsecureCookies, pass caBundle to UI by @sgburtsev in https://github.com/ytsaurus/yt-k8s-operator/pull/310

Minor

• Add all YTsaurus CRD into category "ytsaurus-all" "yt-all" by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/311

Bugfixes

• Operator should detect configOverrides updates by @l0kix2 in https://github.com/ytsaurus/yt-k8s-operator/pull/314

Release date: 2024-06-28

Features

• More options for store locations. by @sgburtsev in https://github.com/ytsaurus/yt-k8s-operator/pull/294
  • data nodes upper limit for low_watermark increased from 5 to 25Gib;
  • data nodes' trash_cleanup_watermark will be set equal to the lowWatermark value from spec
  • max_trash_ttlcan be configured in spec
• Add support for directDownload to UI Spec by @kozubaeff in https://github.com/ytsaurus/yt-k8s-operator/pull/257
  • directDownload for UI can be configured in the spec now. If omitted or set to true, UI will have current default behaviour (use proxies for download), if set to false — UI backend will be used for downloading.

New Contributors

• @sgburtsev made their first contribution in https://github.com/ytsaurus/yt-k8s-operator/pull/294

Release date: 2024-06-27

Features

• SetHostnameAsFQDN option is added to all components. Default is true by @qurname2 in https://github.com/ytsaurus/yt-k8s-operator/pull/302
• Add per-component option hostNetwork by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/287

Minor

• Add option for per location disk space quota by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/279
• Add into exec node pods environment variables for CRI tools by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/283
• Add per-instance-group podLabels and podAnnotations by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/289
• Sort status conditions for better readability by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/290
• Add init containers for exec node by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/288
• Add loglevel "warning" by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/292
• Remove mutating/defaulter webhooks by @koct9i in https://github.com/ytsaurus/yt-k8s-operator/pull/296

Bugfixes

• fix exec node resource calculation on non-isolated CRI-powered job environment by @kruftik in https://github.com/ytsaurus/yt-k8s-operator/pull/277

Release date: 2024-06-07

Features

Minor

• Add everyone-share QT ACO by @Krisha11 in #272
• Add channel in qt config by @Krisha11 in #273
• Add option for per location disk space quota #279

Bugfixes

• Fix exec node resource calculation on non-isolated CRI-powered job environment #277

Release date: 2024-05-30

Features

Minor

• Add 'physical_host' to cypress_annotations for CMS and UI сompatibility #252
• added WATCH_NAMESPACE env and LeaderElectionNamespace #168
• Add configuration for solomon exporter: specify host and some instance tags #258
• Add sidecars support to primary masters containers #259
• Add option for containerd registry config path #264

Bugfixes

• Fix CRI job environment for remote exec nodes #261

Release date: 2024-04-23

Features

• Add experimental (behaviour may change) UpdateSelector field #211 to be able to update components separately

Minor

• Enable TmpFS when possible #235
• Disable disk quota for slot locations #236
• Forward docker image environment variables to user job #248

Bugfixes

• Fix flag doNotSetUserId #243

Release date: 2024-04-12

Features

Minor

• Increased default value for MaxSnapshotCountToKeep and MaxChangelogCountToKeep
• Tune default bundle replication factor #210
• Set EnableServiceLinks=false for all pods #218

Bugfixes

• Fix authentication configuration for RPC Proxy #207
• Job script updated on restart #224
• Use secure random and base64 for tokens #202
• Fix running jobs with custom docker_image when default job image is not set #217

Release date: 2024-04-04

Features

• Add Remote exec nodes support #75
• Add MasterCaches support #122
• Enable TLS certificate auto-update for http proxies #167
• CRI containerd job environment #105

Minor

• Support RuntimeClassName in InstanceSpec
• Configurable monitoring port #146
• Not triggering full update for data nodes update
• Add ALLOW_PASSWORD_AUTH to UI #162
• Readiness checks for strawberry & UI
• Medium is called domestic medium now #88
• Tune tablet changelog/snapshot initial replication factor according to data node count #185
• Generate markdown API docs
• Rename operations archive #116
• Configure cluster to use jupyt #149
• Fix QT ACOs creation on cluster update #176
• Set ACLs for QT ACOs, add everyone-use ACO #181
• Enable rpc proxy in job proxy #197
• Add yqla token file in container #140

Bugfixes

• Replace YQL Agent default monitoring port 10029 -> 10019

Release date: 2024-02-26

Features

• Added support for updating masters of 23.2 versions
• Added the ability to bind masters to the set of nodes by node hostnames.
• Added the ability to configure the number of stored snapshots and changelogs in master spec
• Added the ability for users to create access control objects
• Added support for volume mount with mountPropagation = Bidirectional mode in execNodes
• Added access control object namespace "queries" and object "nobody". They are necessary for query_tracker versions 0.0.5 and higher.
• Added support for the new Cliques CHYT UI.
• Added the creation of a group for admins (admins).
• Added readiness probes to component statefulset specs

Fixes

• Improved ACLs on master schemas
• Master and scheduler init jobs do not overwrite existing dynamic configs anymore.

Tests

• Added flow to run tests on Github resources
• Added e2e to check that updating from 23.1 to 23.2 works
• Added config generator tests for all components
• Added respect KIND_CLUSTER_NAME env variable in e2e tests
• Supported local k8s port forwarding in e2e

Backward Incompatible Changes

• exec_agent was renamed to exec_node in exec node config, if your specs have configOverrides please rename fields accordingly.

Release date: 2023-11-29

Features

• Added minReadyInstanceCount into Ytsaurus components which allows not to wait when all pods are ready.
• Support queue agent.
• Added postprocessing of generated static configs.
• Introduced separate UseIPv4 option to allow dualstack configurations.
• Support masters in host network mode.
• Added spyt engine in query tracker by default.
• Enabled both ipv4 and ipv6 by default in chyt controllers.
• Default CHYT clique creates as tracked instead of untracked.
• Don't run full update check if full update is not enabled (enable_full_update flag in spec).
• Update cluster algorithm was improved. If full update is needed for already running components and new components was added, operator will run new components at first, and only then start full update. Previously such reconfiguration was not supported.
• Added optional TLS support for native-rpc connections.
• Added possibility to configure job proxy loggers.
• Changed how node resource limits are calculated from resourceLimits and resourceRequests.
• Enabled debug logs of YTsaurus go client for controller pod.
• Supported dualstack clusters in YQL agent.
• Supported new config format of YQL agent.
• Supported NodePort specification for HTTP proxy (http, https), UI (http) and RPC proxy (rpc port). For TCP proxy NodePorts are used implicitly when NodePort service is chosen. Port range size and minPort are now customizable.

Fixes

• Fixed YQL agents on ipv6-only clusters.
• Fixed deadlock in case when UI deployment is manually deleted.

Tests

• e2e tests were fixed.
• Added e2e test for operator version compat.

Release date: 2023-10-03

Features

• Support per-instance-group config override
• Support TLS for RPC proxies

Bug fixes

• Fixed an error during creation of default CHYT clique (ch_public).

Release date: 2023-09-26

Features

• The operations archive will be updated when the scheduler image changes.
• Ability to specify different images for different components.
• Cluster update without full downtime for stateless components was supported.
• Updating of static component configs if necessary was supported.
• Improved SPYT controller. Added initialization status (ReleaseStatus).
• Added CHYT controller and the ability to load several different versions on one YTsaurus cluster.
• Added the ability to specify the log format (yson, json or plain_text), as well as the ability to enable recording of structured logs.
• Added more diagnostics about deploying cluster components in the Ytsaurus status.
• Added the ability to disable the launch of a full update (enableFullUpdate field in Ytsaurus spec).
• The chyt spec field was renamed to strawberry. For backward compatibility, it remains in crd, but it is recommended to rename it.
• The size of description in crd is now limited to 80 characters, greatly reducing the size of crd.
• Query Tracker status tables are now automatically migrated when it is updated.
• Added the ability to set privileged mode for exec node containers.
• Added TCP proxy.
• Added more spec validation: checks that the paths in the locations belong to one of the volumes, and also checks that for each specified component there are all the components necessary for its successful work.
• strawberry controller and ui can also be updated.
• Added the ability to deploy http-proxy with TLS.
• Odin service address for the UI can be specified in spec.
• Added the ability to configure tags and rack for nodes.
• Supported OAuth service configuration in the spec.
• Added the ability to pass additional environment variables to the UI, as well as set the theme and environment (testing, production, etc.) for the UI.
• Data node location mediums are created automatically during the initial deployment of the cluster.

Release date: 2023-08-14

Features

• Added the ability to configure automatic log rotation.
• toleration and nodeSelector can be specified in instance specs of components.
• Types of generated objects are specified in controller configuration, so operator respond to modifications of generated objects by reconciling.
• Config maps store data in text form instead of binary, so that you can view the contents of configs through kubectl describe configmap <configmap-name>.
• Added calculation and setting of disk_usage_watermark and disk_quota for exec node.
• Added a SPYT controller and the ability to load the necessary for SPYT into Cypress using a separate resource, which allows you to have several versions of SPYT on one cluster.

Bug fixes

• Fixed an error in the naming of the medium_name field in static configs.

Release date: 2025-03-05

Features

• Support dump-parquet in parallel mode
• Support read_table_structured in parallel mode
• Support retries while upload parquet/orc
• Support dump-orc in parallel mode
• Add min_batch_row_count option to dump parquet

Fixes

• Fix Unexpected end of stream error in upload parquet

Release date: 2024-08-07

Features:

• Support ORC format
• Access thread local variables via noinline functions
• Support Python 3.13 (avoid using deprecated PyImport_ImportModuleNoBlock)

Release date: 2024-04-24

• Add table creation in upload parquet
• Reduce bindings .so size

Release date: 2024-03-09

• Add implementation of upload_parquet
• Fix invalid memory access in YsonStringProxy

Release date: 2025-04-30

Features

• Turn on redirect_stdout_to_stderr by default
• Add password strength validation in set_user_password request

Release date: 2025-04-18

Features

• Active users of dynamic tables APIs are encouraged to use RPC proxies
• Support using /api/v4/discover_proxies handler instead of /hosts

Fixes

• Error on getting impersonation_user setting from configuration

Release date: 2025-03-25

Features

• Add support of expression and aggregate properties in TableSchema.
• Add impersonation support.
• Do not strip docker host in spec builder.
• Add logging of bad requests.
• Bump ytsaurus-client dependencies.

Release date: 2025-03-12

Features

• Introduce yt whoami command

Fixes

• Fix issue-token output format

Release date: 2025-03-02

Features

• Replace include_scheduler option with include_runtime option in get_operation command (it is backward incompatible change)
• Request type attributes instead of operation_type attribute in get_operation command
• Add redirect_stdout_to_stderr support
• Support require_sync_replica in push_queue_producer
• Add is_prerequisite_check_fail method to error, add YtAuthenticationError
• Support operation suspend reason

Fixes

• Drop python2 related code in _py_runner.py
• Add python_requires=">=3.8" to package setup
• Do not request all attributes in operation exists check
• Fix handling request timeout of start_operation command

Release date: 2025-02-04

Features

• Add min_batch_row_count option to dump parquet
• Add patch_operation_spec method
• Add queue producer methods in YT cli
• Add trimmed_row_counts parameter
• Add versioned_read_options parameter
• Add ignore_type_mismatch parameter
• Do not write command line into started_by (by default)
• Show native libraries version in CLI
• Make pickling->dynamic_libraries->enable_auto_collection remote patchable
• Apply destination path attributes to temporary objects within parallel upload

Fixes

• YSON: unescape invalid seqs as in bingings implementation.
• Fix generate_traceparent
• Remove typing_extensions module imports for newer python versions
• Fix native driver configuration

Release date: 2025-01-10

Fixes:

• Fix import checks for orc related functions

Release date: 2024-12-26

Features:

• Introduce YAML format support
• Introduce the higher level primitives for tracking queries
• Add network_project option setter for UserJobSpecBuilder
• Add parallel mode for ORC format
• Support omit_inaccessible_columns for read commands
• Support preserve_acl option in copy/move commands
• Rework authentication commands in CLI over getpass
• Dirtable upload improvements
• Add queue producer commands
• Improve SpecBuilder: add use_columnar_statistics, ordered, data_size_per_reduce_job

Fixes:

• Fix retries for parquet/orc upload commands

Cosmetics:

• Remove legacy constant from operation_commands.py
• Beautify imports: drop Python 2 support
• Wrap doc links into constants for --help command

Many thanks to @zlobober for significant contribution!

Release date: 2024-10-15

Features:

• Add possibility to upload and dump tables in ORC format using CLI commands: upload-orc and dump-orc
• Support parallel mode for dump-parquet command
• Support nullable fields during parsing YT schema from parquet schema
• Support parallel mode for read_table_structured command
• Add cli params to docker respawn decorator (PR: #849). Thanks @thenno for the PR!

Fixes:

• Do not retry LineTooLong error
• Fix read_query_result always returning raw results (PR: #800). Thanks @zlobober for the PR!
• Fix cyclic references that were causing memory leaks
• Reduce default value of write_parallel/concatenate_size from 100 to 20
• Fix retries in upload-parquet command

Release date: 2024-07-26

Features:

• Use expanduser for config["token_path"]
• Support custom dill params
• Support Nullable patchable config element
• Add max_replication_factor in config
• Use strawberry ctl address from cypress client_config

Fixes:

• Fixes of E721: do not compare types, for exact checks use is / is not, for instance checks use isinstance()
• Fix bug in YT python wrapper: stop transaction pinger before exiting transaction

Thanks to multiple outside contributors for the active participation in Python SDK development.

Release date: 2024-06-26

Features:

• Support profiles in configuration file
• Add versioned select
• Add enum.StrEnum and enum.IntEnum support for yt_dataclasses

Fixes:

• Fix test_operation_stderr_output in py.test environment

Thanks to @thenno for considerable contribution!

Release date: 2024-06-19

Features:

• Allow to specify prerequisite transaction ids in client.Transaction context manager (PR: #638). Thanks @chegoryu for the PR!
• Add client and chunk_count parameters to dirtable_commands
• Add alter_query command for Query Tracker
• Add dump_job_proxy_log command (PR: #594). Thanks @tagirhamitov for the PR!

Fixes:

• Fix return result of lock command in case of batch client
• Fix jupyter notebooks for operations in separate cells (PR: #654). Thanks @dmi-feo for the PR!

Release date: 2024-03-09

Features:

• Added an option for skipping rows merge in select
• Support composite types in QL
• Add preserve_account option to table backup commands
• Expand the list of dynamic table retriable errors
• Enhance table creation with specified append attribute
• Various improvements of maintenance API
• Support upload_parquet command

Fixes:

• Support SortColumn serialization
• Fix file descriptors leak in config parsing
• Fix output stream validation for TypedJobs

Release date: 2023-12-14

Features:

• Support double and float type in @yt_dataclass.
• Added get_query_result command.

Fixes:

• Fixed setting config from environment variables.
• Eligeable error message if node type is not equal to table in operation spec.

Release date: 2025-04-08

• Add fullResult to QueryResult.
• Add QueryStatistics to SelectRowsResult.
• Set type 'composite' instead of 'any' for complex types in UnversionedValue.
• Support 'sort_by' in ReduceSpec.
• Add API methods for working with Shuffle Service.
• Support retries for cross cell copy/move.
• Support additional secrets in StartQuery.
• Add retry for timeout YTsaurusError.
• Don't fail on 'cluster' attribute in queue and consumer paths in the listQueueConsumerRegistrations.

Release date: 2025-01-23

• Update protobuf to 3.25.5 version.
• Support for the ability to use a custom TableRowsSerializer provided through the SerializationContext.
• Change protobuf type of YPath and RichYPath parameters: string -> bytes.
• Remove "command" from "started_by" spec field.

Release date: 2024-11-25

• Add the RequestMiddleware interface to subscribe on request start.
• Support ListQueueConsumerRegistrations.
• Add monitoring callback interface for MultiYTsaurusClient.
• Refactor MultiYTsaurusClient.
• Support YT_BASE_LAYER.
• Fix resource leak in the ClientPool.

Release date: 2024-09-05

• YsonJsonConverter has been released.
• Support for Date32, Datetime64, Timestamp64, Interval64 types.
• Fixed a bug that caused writeTable to fail if the table schema did not match the user-specified schema.

Release date: 2024-08-20

• Added MultiYTsaurusClient.
• Support for MultiLookupRows request.
• Fixed a bug that caused an infinite wait for proxy discovery when the connection failed.
• Fixed a bug that caused the operation output table to be created without a user-specified transaction.

Release date: 2024-06-18

• Support for JPA @Embedded/@Embeddable annotations.
• Support for URL schema to detect the usage of TLS.
• Implemented YT Query Tracker API methods.

Release date: 2024-05-27

• Introduced DiscoveryClient.
• The following types are supported in @Entity fields (use @Column(columnDefinition=“...”) to specify type):
  • enum -> utf8/string;
  • String -> string;
  • Instant -> int64;
  • YsonSerializable -> yson.
• Fixed a bug due to which YTsaurusClient did not terminate.

Release date: 2024-04-11

• Supported placeholder values in SelectRowsRequest.
• Supported specifying the proxy network name.
• Supported set(Input/Output)Format in CommandSpec.
• Fixed a bug that caused NoSuchElementException in SyncTableReader.
• Fixed a bug that caused the table to be recreated when writing without "append".

Release date: 2024-01-29

• Supported serializable mapper/reducer.
• Added completeOperation method.
• Implemented three YT Queues API methods: registerQueueConsumer, advanceConsumer, pullConsumer.
• Added AggregateStatistics to MultiTablePartition.
• Some minor bug fixes.

Release date: 2023-09-18

• Fixed a bug that caused SyncTableReaderImpl internal threads would not terminate.
• In the WriteTable request, the needRetries option is set to true by default.
• The WriteTable request has builder(Class) now; using it, you can omit the SerializationContext if the class is marked with the @Entity annotation, implements the com.google.protobuf.Message or tech.ytsaurus.ysontree.YTreeMapNode interface (serialization formats will be skiff, protobuf or wire respectively).
• The setPath(String) setters in the WriteTable and ReadTable builders are @Deprecated.
• The interfaces of the GetNode and ListNode request builders have been changed: List<String> is passed to the setAttributes method instead of ColumnFilter, the null argument represents universal filter (all attributes should be returned).
• Added the useTLS flag to YTsaurusClientConfig, if set to true https will be used for discover_proxies.

Release date: 2023-07-26

• Fixed validation of @Entity schemas: reading a subset of table columns, a superset of columns (if the types of the extra columns are nullable), writing a subset of columns (if the types of the missing columns are nullable).
• The following types are supported in @Entity fields:
  • utf8 -> String;
  • string -> byte[];
  • uuid -> tech.ytsaurus.core.GUID;
  • timestamp -> java.time.Instant.
• If an operation started by SyncYTsaurusClient fails, an exception will be thrown.
• Added the ignoreBalancers flag to YTsaurusClientConfig, which allows to ignore balancer addresses and find only rpc proxy addresses.