[fix](multi-catalog) Revert #36575 and check nullptr of data column #37086
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…imes after low mem exception. (apache#36575)" This reverts commit 17cf34b.
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morningman
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Jul 13, 2024
…er low mem exception. (#36574) ## Proposed changes ### Issue ``` SIGSEGV address not mapped to object (@0x8) received by PID 2264997 (TID 2267559 OR 0x7ff60b2a4640) from PID 8; stack trace: *** 0# doris::signal::(anonymous namespace)::FailureSignalHandler(int, siginfo_t*, void*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/common/signal_handler.h:421 1# PosixSignals::chained_handler(int, siginfo*, void*) [clone .part.0] in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 2# JVM_handle_linux_signal in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 3# 0x00007FFB96D77520 in /lib/x86_64-linux-gnu/libc.so.6 4# doris::vectorized::Block::clear_column_data(int) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/core/block.cpp:705 5# doris::vectorized::OrcReader::get_next_block_impl(doris::vectorized::Block*, unsigned long*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 6# doris::vectorized::OrcReader::get_next_block(doris::vectorized::Block*, unsigned long*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1533 7# doris::vectorized::VFileScanner::_get_block_wrapped(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:355 8# doris::vectorized::VFileScanner::_get_block_impl(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:298 9# doris::vectorized::VScanner::get_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 10# doris::vectorized::VScanner::get_block_after_projects(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vscanner.cpp:96 11# doris::vectorized::ScannerScheduler::_scanner_scan(std::shared_ptr<doris::vectorized::ScannerContext>, std::shared_ptr<doris::vectorized::ScanTask>) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/scanner_scheduler.cpp:258 ``` ### Root cause It is found that when executing conjuncts expressions when there is insufficient memory, column names and types may be inserted, but the columns are not inserted into the block, which eventually leads to a crash. If an exception occurs after `block->insert({nullptr, _data_type, _expr_name});`, it will lead to the situation mentioned above ``` Status VectorizedFnCall::_do_execute(doris::vectorized::VExprContext* context, doris::vectorized::Block* block, int* result_column_id, std::vector<size_t>& args) { ... // prepare a column to save result block->insert({nullptr, _data_type, _expr_name}); if (_can_fast_execute) { auto can_fast_execute = fast_execute(*block, args, num_columns_without_result, block->rows(), _function->get_name()); if (can_fast_execute) { *result_column_id = num_columns_without_result; return Status::OK(); } } ``` ### Solution #37086
morningman
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Jul 15, 2024
…lumn (apache#37086) Revert apache#36575, because `VScanner::get_block` will check `DCHECK(block->rows() == 0)`, so block should be cleared when `eof = true`.
seawinde
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Jul 17, 2024
…er low mem exception. (apache#36574) ## Proposed changes ### Issue ``` SIGSEGV address not mapped to object (@0x8) received by PID 2264997 (TID 2267559 OR 0x7ff60b2a4640) from PID 8; stack trace: *** 0# doris::signal::(anonymous namespace)::FailureSignalHandler(int, siginfo_t*, void*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/common/signal_handler.h:421 1# PosixSignals::chained_handler(int, siginfo*, void*) [clone .part.0] in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 2# JVM_handle_linux_signal in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 3# 0x00007FFB96D77520 in /lib/x86_64-linux-gnu/libc.so.6 4# doris::vectorized::Block::clear_column_data(int) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/core/block.cpp:705 5# doris::vectorized::OrcReader::get_next_block_impl(doris::vectorized::Block*, unsigned long*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 6# doris::vectorized::OrcReader::get_next_block(doris::vectorized::Block*, unsigned long*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1533 7# doris::vectorized::VFileScanner::_get_block_wrapped(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:355 8# doris::vectorized::VFileScanner::_get_block_impl(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:298 9# doris::vectorized::VScanner::get_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 10# doris::vectorized::VScanner::get_block_after_projects(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vscanner.cpp:96 11# doris::vectorized::ScannerScheduler::_scanner_scan(std::shared_ptr<doris::vectorized::ScannerContext>, std::shared_ptr<doris::vectorized::ScanTask>) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/scanner_scheduler.cpp:258 ``` ### Root cause It is found that when executing conjuncts expressions when there is insufficient memory, column names and types may be inserted, but the columns are not inserted into the block, which eventually leads to a crash. If an exception occurs after `block->insert({nullptr, _data_type, _expr_name});`, it will lead to the situation mentioned above ``` Status VectorizedFnCall::_do_execute(doris::vectorized::VExprContext* context, doris::vectorized::Block* block, int* result_column_id, std::vector<size_t>& args) { ... // prepare a column to save result block->insert({nullptr, _data_type, _expr_name}); if (_can_fast_execute) { auto can_fast_execute = fast_execute(*block, args, num_columns_without_result, block->rows(), _function->get_name()); if (can_fast_execute) { *result_column_id = num_columns_without_result; return Status::OK(); } } ``` ### Solution apache#37086
dataroaring
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Jul 17, 2024
…er low mem exception. (#36574) ## Proposed changes ### Issue ``` SIGSEGV address not mapped to object (@0x8) received by PID 2264997 (TID 2267559 OR 0x7ff60b2a4640) from PID 8; stack trace: *** 0# doris::signal::(anonymous namespace)::FailureSignalHandler(int, siginfo_t*, void*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/common/signal_handler.h:421 1# PosixSignals::chained_handler(int, siginfo*, void*) [clone .part.0] in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 2# JVM_handle_linux_signal in /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so 3# 0x00007FFB96D77520 in /lib/x86_64-linux-gnu/libc.so.6 4# doris::vectorized::Block::clear_column_data(int) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/core/block.cpp:705 5# doris::vectorized::OrcReader::get_next_block_impl(doris::vectorized::Block*, unsigned long*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 6# doris::vectorized::OrcReader::get_next_block(doris::vectorized::Block*, unsigned long*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1533 7# doris::vectorized::VFileScanner::_get_block_wrapped(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:355 8# doris::vectorized::VFileScanner::_get_block_impl(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vfile_scanner.cpp:298 9# doris::vectorized::VScanner::get_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) in /mnt/hdd01/PERFORMANCE_ENV/be/lib/doris_be 10# doris::vectorized::VScanner::get_block_after_projects(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/vscanner.cpp:96 11# doris::vectorized::ScannerScheduler::_scanner_scan(std::shared_ptr<doris::vectorized::ScannerContext>, std::shared_ptr<doris::vectorized::ScanTask>) at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/scanner_scheduler.cpp:258 ``` ### Root cause It is found that when executing conjuncts expressions when there is insufficient memory, column names and types may be inserted, but the columns are not inserted into the block, which eventually leads to a crash. If an exception occurs after `block->insert({nullptr, _data_type, _expr_name});`, it will lead to the situation mentioned above ``` Status VectorizedFnCall::_do_execute(doris::vectorized::VExprContext* context, doris::vectorized::Block* block, int* result_column_id, std::vector<size_t>& args) { ... // prepare a column to save result block->insert({nullptr, _data_type, _expr_name}); if (_can_fast_execute) { auto can_fast_execute = fast_execute(*block, args, num_columns_without_result, block->rows(), _function->get_name()); if (can_fast_execute) { *result_column_id = num_columns_without_result; return Status::OK(); } } ``` ### Solution #37086
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Proposed changes
Revert #36575, because
VScanner::get_blockwill checkDCHECK(block->rows() == 0), so block should be cleared wheneof = true.