S3attach #10
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S3attach #10
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Mytherin
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Dec 3, 2024
I was investigating the following crash where a checkpoint task had its underlying resources being destroyed while it was still running. The two interesting threads are the following: ``` thread #1, name = 'duckling', stop reason = signal SIGTRAP frame #0: 0x0000ffff91bb71ec frame #1: 0x0000aaaad73a38e8 duckling`duckdb::InternalException::InternalException(this=<unavailable>, msg=<unavailable>) at exception.cpp:336:2 frame #2: 0x0000aaaad786eb68 duckling`duckdb::unique_ptr<duckdb::RowGroup, std::default_delete<duckdb::RowGroup>, true>::operator*() const [inlined] duckdb::unique_ptr<duckdb::RowGroup, std::default_delete<duckdb::RowGroup>, true>::AssertNotNull(null=<unavailable>) at unique_ptr.hpp:25:10 frame #3: 0x0000aaaad786eaf4 duckling`duckdb::unique_ptr<duckdb::RowGroup, std::default_delete<duckdb::RowGroup>, true>::operator*(this=0x0000aaacbb73e008) const at unique_ptr.hpp:34:4 frame #4: 0x0000aaaad787abbc duckling`duckdb::CheckpointTask::ExecuteTask(this=0x0000aaabec92be60) at row_group_collection.cpp:732:21 frame #5: 0x0000aaaad7756ea4 duckling`duckdb::BaseExecutorTask::Execute(this=0x0000aaabec92be60, mode=<unavailable>) at task_executor.cpp:72:3 frame #6: 0x0000aaaad7757e28 duckling`duckdb::TaskScheduler::ExecuteForever(this=0x0000aaaafda30e10, marker=0x0000aaaafda164a8) at task_scheduler.cpp:189:32 frame #7: 0x0000ffff91a031fc frame #8: 0x0000ffff91c0d5c8 thread duckdb#120, stop reason = signal 0 frame #0: 0x0000ffff91c71c24 frame #1: 0x0000ffff91e1264c frame #2: 0x0000ffff91e01888 frame #3: 0x0000ffff91e018f8 frame #4: 0x0000ffff91e01c10 frame #5: 0x0000ffff91e05afc frame #6: 0x0000ffff91e05e70 frame #7: 0x0000aaaad784b63c duckling`duckdb::RowGroup::~RowGroup() [inlined] std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release(this=<unavailable>) at shared_ptr_base.h:184:10 frame #8: 0x0000aaaad784b5b4 duckling`duckdb::RowGroup::~RowGroup() [inlined] std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count(this=<unavailable>) at shared_ptr_base.h:705:11 frame #9: 0x0000aaaad784b5ac duckling`duckdb::RowGroup::~RowGroup() [inlined] std::__shared_ptr<duckdb::ColumnData, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr(this=<unavailable>) at shared_ptr_base.h:1154:31 frame #10: 0x0000aaaad784b5ac duckling`duckdb::RowGroup::~RowGroup() [inlined] duckdb::shared_ptr<duckdb::ColumnData, true>::~shared_ptr(this=<unavailable>) at shared_ptr_ipp.hpp:115:24 frame #11: 0x0000aaaad784b5ac duckling`duckdb::RowGroup::~RowGroup() [inlined] void std::_Destroy<duckdb::shared_ptr<duckdb::ColumnData, true>>(__pointer=<unavailable>) at stl_construct.h:151:19 frame duckdb#12: 0x0000aaaad784b5ac duckling`duckdb::RowGroup::~RowGroup() [inlined] void std::_Destroy_aux<false>::__destroy<duckdb::shared_ptr<duckdb::ColumnData, true>*>(__first=<unavailable>, __last=<unavailable>) at stl_construct.h:163:6 frame duckdb#13: 0x0000aaaad784b5a0 duckling`duckdb::RowGroup::~RowGroup() [inlined] void std::_Destroy<duckdb::shared_ptr<duckdb::ColumnData, true>*>(__first=<unavailable>, __last=<unavailable>) at stl_construct.h:195:7 frame duckdb#14: 0x0000aaaad784b5a0 duckling`duckdb::RowGroup::~RowGroup() [inlined] void std::_Destroy<duckdb::shared_ptr<duckdb::ColumnData, true>*, duckdb::shared_ptr<duckdb::ColumnData, true>>(__first=<unavailable>, __last=<unavailable>, (null)=<unavailable>) at alloc_traits.h:848:7 frame duckdb#15: 0x0000aaaad784b5a0 duckling`duckdb::RowGroup::~RowGroup() [inlined] std::vector<duckdb::shared_ptr<duckdb::ColumnData, true>, std::allocator<duckdb::shared_ptr<duckdb::ColumnData, true>>>::~vector(this=<unavailable>) at stl_vector.h:680:2 frame duckdb#16: 0x0000aaaad784b5a0 duckling`duckdb::RowGroup::~RowGroup(this=<unavailable>) at row_group.cpp:83:1 frame duckdb#17: 0x0000aaaad786ee18 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] std::default_delete<duckdb::RowGroup>::operator()(this=0x0000aaacbb73e1a8, __ptr=0x0000aaab75ae7860) const at unique_ptr.h:85:2 frame duckdb#18: 0x0000aaaad786ee10 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() at unique_ptr.h:361:4 frame duckdb#19: 0x0000aaaad786ee08 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] duckdb::SegmentNode<duckdb::RowGroup>::~SegmentNode(this=0x0000aaacbb73e1a0) at segment_tree.hpp:21:8 frame duckdb#20: 0x0000aaaad786ee08 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] void std::_Destroy<duckdb::SegmentNode<duckdb::RowGroup>>(__pointer=0x0000aaacbb73e1a0) at stl_construct.h:151:19 frame duckdb#21: 0x0000aaaad786ee08 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] void std::_Destroy_aux<false>::__destroy<duckdb::SegmentNode<duckdb::RowGroup>*>(__first=0x0000aaacbb73e1a0, __last=0x0000aaacbb751130) at stl_construct.h:163:6 frame duckdb#22: 0x0000aaaad786ede8 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] void std::_Destroy<duckdb::SegmentNode<duckdb::RowGroup>*>(__first=<unavailable>, __last=0x0000aaacbb751130) at stl_construct.h:195:7 frame duckdb#23: 0x0000aaaad786ede8 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector() [inlined] void std::_Destroy<duckdb::SegmentNode<duckdb::RowGroup>*, duckdb::SegmentNode<duckdb::RowGroup>>(__first=<unavailable>, __last=0x0000aaacbb751130, (null)=0x0000fffefc81a908) at alloc_traits.h:848:7 frame duckdb#24: 0x0000aaaad786ede8 duckling`std::vector<duckdb::SegmentNode<duckdb::RowGroup>, std::allocator<duckdb::SegmentNode<duckdb::RowGroup>>>::~vector(this=size=4883) at stl_vector.h:680:2 frame duckdb#25: 0x0000aaaad7857f74 duckling`duckdb::RowGroupCollection::Checkpoint(this=<unavailable>, writer=<unavailable>, global_stats=0x0000fffefc81a9c0) at row_group_collection.cpp:1017:1 frame duckdb#26: 0x0000aaaad788f02c duckling`duckdb::DataTable::Checkpoint(this=0x0000aaab04649e70, writer=0x0000aaab6584ea80, serializer=0x0000fffefc81ab38) at data_table.cpp:1427:14 frame duckdb#27: 0x0000aaaad7881394 duckling`duckdb::SingleFileCheckpointWriter::WriteTable(this=0x0000fffefc81b128, table=0x0000aaab023b78c0, serializer=0x0000fffefc81ab38) at checkpoint_manager.cpp:528:11 frame duckdb#28: 0x0000aaaad787ece4 duckling`duckdb::SingleFileCheckpointWriter::CreateCheckpoint() [inlined] duckdb::SingleFileCheckpointWriter::CreateCheckpoint(this=<unavailable>, obj=0x0000fffefc81ab38)::$_7::operator()(duckdb::Serializer::List&, unsigned long) const::'lambda'(duckdb::Serializer&)::operator()(duckdb::Serializer&) const at checkpoint_manager.cpp:181:43 frame duckdb#29: 0x0000aaaad787ecd8 duckling`duckdb::SingleFileCheckpointWriter::CreateCheckpoint() [inlined] void duckdb::Serializer::List::WriteObject<duckdb::SingleFileCheckpointWriter::CreateCheckpoint()::$_7::operator()(duckdb::Serializer::List&, unsigned long) const::'lambda'(duckdb::Serializer&)>(this=<unavailable>, f=(unnamed class) @ 0x0000600002cbd2b0) at serializer.hpp:385:2 frame duckdb#30: 0x0000aaaad787ecc4 duckling`duckdb::SingleFileCheckpointWriter::CreateCheckpoint() [inlined] duckdb::SingleFileCheckpointWriter::CreateCheckpoint()::$_7::operator()(this=<unavailable>, list=<unavailable>, i=2) const at checkpoint_manager.cpp:181:8 frame duckdb#31: 0x0000aaaad787ecb0 duckling`duckdb::SingleFileCheckpointWriter::CreateCheckpoint() at serializer.hpp:151:4 frame duckdb#32: 0x0000aaaad787ec94 duckling`duckdb::SingleFileCheckpointWriter::CreateCheckpoint(this=0x0000fffefc81b128) at checkpoint_manager.cpp:179:13 frame duckdb#33: 0x0000aaaad78954a8 duckling`duckdb::SingleFileStorageManager::CreateCheckpoint(this=0x0000aaaafe1de140, options=(wal_action = DONT_DELETE_WAL, action = CHECKPOINT_IF_REQUIRED, type = FULL_CHECKPOINT)) at storage_manager.cpp:365:17 frame duckdb#34: 0x0000aaaad78baac0 duckling`duckdb::DuckTransactionManager::Checkpoint(this=0x0000aaaafe167e00, context=<unavailable>, force=<unavailable>) at duck_transaction_manager.cpp:198:18 frame duckdb#35: 0x0000aaaad69d02c0 duckling`md::Server::BackgroundCheckpointIfNeeded(this=0x0000aaaafdbfe900) at server.cpp:1983:31 frame duckdb#36: 0x0000aaaadac5d3f0 duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] std::function<void ()>::operator()(this=<unavailable>) const at std_function.h:590:9 frame duckdb#37: 0x0000aaaadac5d3e0 duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] md::BackgroundCronTask::Start(unsigned long)::$_0::operator()(this=0x0000aaaafdf169a8) const at background_cron_task.cpp:25:4 frame duckdb#38: 0x0000aaaadac5d30c duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] void std::__invoke_impl<void, md::BackgroundCronTask::Start(unsigned long)::$_0>((null)=<unavailable>, __f=0x0000aaaafdf169a8) at invoke.h:61:14 frame duckdb#39: 0x0000aaaadac5d30c duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] std::__invoke_result<md::BackgroundCronTask::Start(unsigned long)::$_0>::type std::__invoke<md::BackgroundCronTask::Start(unsigned long)::$_0>(__fn=0x0000aaaafdf169a8) at invoke.h:96:14 frame duckdb#40: 0x0000aaaadac5d30c duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] void std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>::_M_invoke<0ul>(this=0x0000aaaafdf169a8, (null)=<unavailable>) at std_thread.h:259:13 frame duckdb#41: 0x0000aaaadac5d30c duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run() [inlined] std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>::operator()(this=0x0000aaaafdf169a8) at std_thread.h:266:11 frame duckdb#42: 0x0000aaaadac5d30c duckling`std::thread::_State_impl<std::thread::_Invoker<std::tuple<md::BackgroundCronTask::Start(unsigned long)::$_0>>>::_M_run(this=0x0000aaaafdf169a0) at std_thread.h:211:13 frame duckdb#43: 0x0000ffff91a031fc frame duckdb#44: 0x0000ffff91c0d5c8 ``` The problem is that if there's an IO exception being thrown in `RowGroupCollection::Checkpoint` after some (but not all) checkpoint tasks have been scheduled but before `checkpoint_state.executor.WorkOnTasks();` is called, it results in an InternalException / DuckDB crash as the `Checkpoint ` method does not wait for the scheduled tasks to have completed before destroying the referenced resources.
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This runs the S3 attach and also re-enables the presigned url tests that were erroneously not running, ci here https://github.com/samansmink/duckdb/actions/runs/8421286972/job/23057894173