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* | Merge pull request #46242 from ydb-platform/merge-rightlib-260712-0103YDBot2026-07-1244-150/+577
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| * | Sync branches 260712-0103YDBot2026-07-1244-150/+577
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| | * Intermediate changesrobot-piglet2026-07-1210-0/+220
| | | | | | | | | | | | commit_hash:770f47397e7869d5fb0cda8d67e3479b156f7f89
| | * Intermediate changesrobot-piglet2026-07-1211-56/+257
| | | | | | | | | | | | commit_hash:6a872f8a76031a194e46daac049491f222f4d74a
| | * YT-28453: Drop per-action closure allocation in two-level fair-share thread poolbabenko2026-07-111-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Every `Invoke` wrapped the user callback in a freshly heap-allocated `BIND(&TBucket::RunCallback, ...)` closure, solely to install the target bucket as the current invoker around execution -- a malloc/free plus a refcounted wrapper construct/destroy on the hot path of every scheduled action. The plain `TThreadPool` avoids this: it stores the callback as-is and installs its invoker via `SetCurrentInvoker()` in the execute path. This does the same -- the bucket is already kept alive in `TAction::BucketHolder`, so `DoOnExecute` installs it as the current invoker right before returning the callback, and `OnExecute` resets it before fetching the next one (mirroring `TSchedulerThread::EndExecute`). ### Why Profiling the `BusXferFS` threads of an RPC proxy showed ~10% of their CPU in the fair-share scheduling machinery, with a per-action allocation visible in `Invoke`. This removes that allocation. ### Benchmark Adds `yt/yt/core/benchmarks/fair_share_thread_pool.cpp` (there was none for this pool): open-loop (Invoke cost), closed-loop (bounded in-flight, true end-to-end scheduling rate), and round-trip latency. Measured on a quiet host (node-pinned, medians): | Config | Before | After | Δ | |---|---|---|---| | open-loop, 1 producer | 410-434 ns/op | 301-336 ns/op | -23..-27% | | closed-loop, pool=1 | 760-864 k/s | 954-968 k/s | +12..+25% | Contended multi-thread configs are coordination-bound (combiner lock + futex wakeups) and unchanged; the win is on the CPU-saturated per-action path, which is what the bus xfer pool hits. commit_hash:c2ec77121bf52d0058042a0c9358a8de7620b69d
| | * Intermediate changesrobot-piglet2026-07-111-1/+1
| | | | | | | | | | | | commit_hash:d6d32f6e92391f4ff0d6260b094eb29d90334bda
| | * YT-28769: Add OverlayLayerPreparationFailed error and abort reason similar ↵yuryalekseev2026-07-111-0/+1
| | | | | | | | | | | | | | | | | | to RootVolumePreparationFailed. commit_hash:4f62c18463d3dc9dcb03996652638e41159a1b14
| | * Avoid copy in TYsonString::ToSharedRef for TCowString payloadbabenko2026-07-111-2/+2
| | | | | | | | | | | | | | | Use the payload itself as the shared range holder instead of copying the string via TSharedRef::FromString. commit_hash:b427dbe6e8a8eaf3aa3c46b57f0f9965d57b3a95
| | * YT-18571: Drop TSharedRef::FromString(const char* str)babenko2026-07-1117-82/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rationale: all overloads of `TSharedRef::FromString` must remain cheap and don't copy any payload. Remove the zero-terminated C string overload of `TSharedRef::FromString`. Callers passing a string literal should use `std::string/TString` explicitly. #| || **<a href="https://nda.ya.ru/t/-VG7qyBv7iD8vm" target="_blank">![](https://nda.ya.ru/t/mAiQIjHx7Mm3JC =30x) Echo tests</a>** || |# commit_hash:1a6718abcbe4e6a8f58592f55de8c37ceb2b73d3
| | * More heartbeat profilingaleksandra-zh2026-07-112-0/+11
| | | | | | | | | | | | commit_hash:bc29593fe77058e2397200b02eb336dfa1171226
* | | Merge pull request #46250 from ydb-platform/update-muted-ya_main_relwithdebinfoYDBot2026-07-121-0/+2
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| * | | Update muted_ya for relwithdebinfo mainYDBot2026-07-121-0/+2
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* | | | Merge pull request #46251 from ydb-platform/update-muted-ya_main_release-asanYDBot2026-07-121-0/+2
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| * | | | Update muted_ya for release-asan mainYDBot2026-07-121-0/+2
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* / / / Update muted_ya for release-msan mainYDBot2026-07-121-0/+2
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* | | Merge pull request #46241 from ydb-platform/update-muted-ya_main_release-asanYDBot2026-07-121-19/+2
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| * | | Update muted_ya for release-asan mainYDBot2026-07-121-19/+2
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* | | | Merge pull request #46237 from ydb-platform/update-muted-ya_main_relwithdebinfoYDBot2026-07-121-4/+0
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| * | | | Update muted_ya for relwithdebinfo mainYDBot2026-07-121-4/+0
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* | | | Merge pull request #46240 from ydb-platform/update-muted-ya_main_release-msanYDBot2026-07-121-1/+0
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| * | | Update muted_ya for release-msan mainYDBot2026-07-121-1/+0
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* / / Update muted_ya for release-tsan mainYDBot2026-07-121-22/+0
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* | Update CODEOWNERS take tx/tiering (#44785)zverevgeny2026-07-111-0/+1
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* | Update muted_ya for release-asan mainYDBot2026-07-111-0/+1
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* | Remove legacy pgwire support from ydbd (#45922)Aleksey Myasnikov2026-07-11166-15986/+242
| | | | | | | | Co-authored-by: Cursor <[email protected]> Co-authored-by: Copilot Autofix powered by AI <[email protected]>
* | [NEW RBO][CLI] Make explain compatible with SVG and CLI (#46191)alexpaniman2026-07-118-49/+108
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* | Update muted_ya for release-asan mainYDBot2026-07-111-0/+3
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* | Update muted_ya for release-asan mainYDBot2026-07-111-0/+1
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* | Update muted_ya for relwithdebinfo mainYDBot2026-07-111-0/+1
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* | Metadata distribution subsystem documentation (#45667)sintjuri2026-07-1118-51/+457
| | | | | | | | | | Co-authored-by: Evgenik2 <[email protected]> Co-authored-by: Stepan Beloyarov <[email protected]> Co-authored-by: Cursor <[email protected]>
* | Update README.md (#45730)sintjuri2026-07-111-1/+7
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* | fix links (#45955)sintjuri2026-07-111-3/+3
| | | | | | Co-authored-by: Cursor <[email protected]>
* | Add doc about failover with authentication (#45786)mregrock2026-07-114-1/+135
| | | | | | Co-authored-by: sintjuri <[email protected]>
* | YDBDOCS2126-rework-warning-scan-query (#46037)SixOnMyface2026-07-111-2/+5
| | | | | | Co-authored-by: Stepan Beloyarov <[email protected]>
* | Revert "fix cryptography imports" (#46219)Pavel2026-07-116-15/+7
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* | Fixing path in .metadata/_statistics (#46192)Yesdaulet Izenov2026-07-112-13/+29
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* | Store same-type subcolumns as native scalars (#45969)risenberg2026-07-1129-150/+936
| | | | | | | | | | | | | | Adds an opt-in encoding for the SUB_COLUMNS JSON accessor: when every present value of a separated sub-column is a scalar of one JSON type, store it in the matching native Arrow array (float64 / boolean / raw-string binary) instead of a per-value BinaryJson blob. Gated behind a new default-off setting ENABLE_NATIVE_COLUMNS; behavior is unchanged unless it's turned on.
* | Update muted_ya for release-tsan mainYDBot2026-07-111-0/+1
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* | Merge pull request #46217 from ydb-platform/update-muted-ya_main_release-asanYDBot2026-07-111-0/+1
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| * | Update muted_ya for release-asan mainYDBot2026-07-111-0/+1
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* | | Merge pull request #46218 from ydb-platform/update-muted-ya_main_release-tsanYDBot2026-07-111-0/+1
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| * | | Update muted_ya for release-tsan mainYDBot2026-07-111-0/+1
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* | | Merge pull request #46206 from ydb-platform/merge-rightlib-260711-0101YDBot2026-07-11183-9842/+22360
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| * | Sync branches 260711-0101YDBot2026-07-11183-9842/+22360
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| | * add Y_LIFETIME_BOUND to TParsedHttp* classesswarmer2026-07-112-8/+8
| | | | | | | | | | | | commit_hash:5158390863c48b4ceb69eb344ea1996573220c4b
| | * Support postprocessing of polymorphic YSON struct fieldsbabenko2026-07-104-0/+112
| | | | | | | | | | | | | | | Add TPolymorphicYsonStruct::Postprocess (forwarding to the held concrete struct) and a PostprocessRecursive overload keyed on the new TImplementsYsonStructPostprocess tag, so a polymorphic field participates in the recursive postprocess pass like a nested YSON struct does. commit_hash:47c621c2562da2481a392be8f6800a182525462a
| | * Intermediate changesrobot-piglet2026-07-10121-9588/+20761
| | | | | | | | | | | | commit_hash:7c3b47f100a159ae54c5eef858c21b2e1039bbed
| | * Handle dq reader/writer exceptions with UdfTerminatelucius2026-07-102-49/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | #### Handle DQ reader/writer exceptions with UdfTerminate ✎ - Wrap NYT::TErrorResponse and standard exceptions with UdfTerminate to ensure proper error handling and termination in DQ reader and writer components - Add exception handling around FetchRecord and MakeState methods to catch and terminate on YT errors and general exceptions - Enhance writer component with logging capabilities in destructor to capture and report cleanup failures - Introduce proper error propagation for DQ operations by converting YT errors into UDF termination signals - Add comprehensive exception handling for both read and write operations to prevent unhandled exceptions from crashing the system <a href="https://nda.ya.ru/t/qa0kX64r7DqvtN"><font size="2">Autodescription by Yandex Code Assistant</font></a> commit_hash:e77875f1ef1c1b2d3c6c8d50a333ee7c80ccde7f
| | * Support Uuid and DyNumber in minikql blocks and Arrowxyligansereja2026-07-1023-59/+878
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Изменения в рамках этого тикета <https://github.com/ydb-platform/ydb/issues/44190> #### Support Uuid and DyNumber in minikql blocks and Arrow ✎ - Added support for Uuid and DyNumber data types within MiniKQL blocks and Arrow computations, enabling their use in block-based operations and serialization - Implemented proper conversion, serialization, and deserialization logic for both data types in the Arrow format - Extended block item handling to support Uuid and DyNumber, including comparator and hasher implementations - Added comprehensive unit tests covering roundtrip operations, serialization, comparison, and conversion for both data types - Integrated Uuid and DyNumber support into built-in functions like Min/Max and their aggregate variants - Updated type system and block builder components to recognize and handle the new data types correctly - Added necessary includes and utility functions to work with Uuid and DyNumber in MiniKQL contexts <a href="https://nda.ya.ru/t/qa0kX64r7DqvtN"><font size="2">Autodescription by Yandex Code Assistant</font></a> commit_hash:d1ab82c060cfa90b7cd13a1cb3efbcb9615e6291
| | * Intermediate changesrobot-piglet2026-07-1022-117/+420
| | | | | | | | | | | | commit_hash:f831c95aaaa6c6f2c4b98c74539633213dd00bd3
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