[DocDB][PgVector] Segmentation fault yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill

[archit-rastogi]

Jira Link: DB-17248

Description

Stress run: https://stress.dev.yugabyte.com/stress_test/e1d68712-8dbe-42c6-a387-353287bf40d5

Stack: https://stress.dev.yugabyte.com/files/get?name=cd50bd73-0e6e-4f99-99d0-536c1891f889-core_yb.1750055246.vi_kBackfill_tp.60014.86332.backtrace.txt

* thread #1, name = 'yb-tserver', stop reason = signal SIGSEGV
  * frame #0: 0x0000ffff831b1e88 libc.so.6`__GI_memcpy + 248
    frame #1: 0x0000aaaae5a7abf0 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::ByteBufferBase<256ul, false>::DoAppend(this=0x0000ffeeb8866790, keep_size=0, a=",\U00000001", len=1222) at byte_buffer.h:290:5
    frame #2: 0x0000aaaae5a7abc0 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::ByteBufferBase<256ul, false>::Assign(this=0x0000ffeeb8866790, a=",\U00000001", size=1222) at byte_buffer.h:173:5
    frame #3: 0x0000aaaae5a7abc0 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::ByteBufferBase<256ul, false>::Assign(this=0x0000ffeeb8866790, a=",\U00000001", b="qr") at byte_buffer.h:169:5
    frame #4: 0x0000aaaae5a7abc0 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] _ZN2yb14ByteBufferBaseILm256ELb0EEC2ENS_5SliceEQeqT0_Lb0E(this=0x0000ffeeb8866790, slice=(begin_ = ",\U00000001", end_ = "qr")) at byte_buffer.h:49:5
    frame #5: 0x0000aaaae5a7abb8 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::tablet::(anonymous namespace)::VectorIndexBackfillHelper::Add(this=0x0000ffeeb88664c8, ybctid=<unavailable>, value=<unavailable>) at tablet_vector_indexes.cc:207:16
    frame #6: 0x0000aaaae5a7abb4 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::tablet::TabletVectorIndexes::Backfill(this=0x00003082f45c5a20, vector_index=std::__1::shared_ptr<yb::docdb::DocVectorIndex>::element_type @ 0x00003082eecc4aa0, indexed_table=<unavailable>, from_key=<unavailable>, backfill_ht=<unavailable>, op_id=<unavailable>) at tablet_vector_indexes.cc:297:12
    frame #7: 0x0000aaaae5a7a320 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run() [inlined] yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0::operator()(this=0x00003083bf306670) const at tablet_vector_indexes.cc:377:19
    frame #8: 0x0000aaaae5a7a304 yb-tserver`yb::rpc::FunctorThreadPoolTask<yb::tablet::TabletVectorIndexes::ScheduleBackfill(std::__1::shared_ptr<yb::docdb::DocVectorIndex> const&, yb::HybridTime, yb::OpId, std::__1::shared_ptr<yb::tablet::TableInfo> const&, std::__1::shared_ptr<yb::ScopedRWOperation>)::$_0, yb::rpc::ThreadPoolTask>::Run(this=0x00003083bf306660) at thread_pool.h:71:5
    frame #9: 0x0000aaaae591c638 yb-tserver`yb::rpc::(anonymous namespace)::Worker::Execute(this=0x00003082ffe1cdc0, task=0x00003083bf306660) at thread_pool.cc:138:13
    frame #10: 0x0000aaaae61e603c yb-tserver`yb::Thread::SuperviseThread(void*) [inlined] std::__1::__function::__value_func<void ()>::operator()[abi:ne190100](this=0x00003082fe128750) const at function.h:430:12
    frame #11: 0x0000aaaae61e6028 yb-tserver`yb::Thread::SuperviseThread(void*) [inlined] std::__1::function<void ()>::operator()(this=0x00003082fe128750) const at function.h:989:10
    frame #12: 0x0000aaaae61e6028 yb-tserver`yb::Thread::SuperviseThread(arg=0x00003082fe1286e0) at thread.cc:946:3
    frame #13: 0x0000ffff831578b8 libpthread.so.0`start_thread + 392
    frame #14: 0x0000ffff831b3afc libc.so.6`thread_start + 12

Issue Type

kind/bug

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