[Fix](parquet-reader) Fix parquet reader crash in set_dict().#40643
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morningman merged 1 commit intoapache:masterfrom Sep 13, 2024
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[Fix](parquet-reader) Fix parquet reader crash in set_dict().#40643morningman merged 1 commit intoapache:masterfrom
morningman merged 1 commit intoapache:masterfrom
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TeamCity be ut coverage result: |
TPC-H: Total hot run time: 38088 ms |
TPC-DS: Total hot run time: 197465 ms |
ClickBench: Total hot run time: 32.07 s |
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wuwenchi
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Sep 13, 2024
kaka11chen
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…#40643) ## Proposed changes ### Issue ``` *** is nereids: 1 *** tablet id: 4 Abort at 1725864966 (unix time) try "date -d @1725864966" if you are using GNU date *** *** Set a breakpoint in static void __GI_abort() to debug *** PC: @ 0x7f007fb4090a04 *** SIGSEGV (address not mapped to object 0xa0fa868a41d6) received by PID 404737 (TID 274135 OR 0x7ece29df700) from PID 1755584205; stack trace: *** #0 __GI_raise #1 __GI_abort #2 sig_handler #3 _sigaction apache#4 JVM_handle_linux_signal apache#5 _sigaction apache#6 doris::vectorized::ByteArrayDictDecoder::set_dict(std::unique_ptr<unsigned char[], std::default_delete<unsigned char[]>> &&, int, unsigned long) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/byte_array_dict_decoder.cpp:41 apache#7 doris::vectorized::ColumnChunkReader::_decode_dict_page() at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_column_chunk_reader.cpp:258 apache#8 doris::vectorized::ColumnChunkReader::next_page() at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_column_chunk_reader.cpp:105 apache#9 doris::vectorized::ParquetColumnReader::_read_column_data(doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_column_reader.cpp:508 apache#10 doris::vectorized::ScalarColumnReader::_next_value(doris::vectorized::ICollumn*, unsigned long, unsigned long*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_column_reader.cpp:699 apache#11 doris::vectorized::RowGroupReader::_read_column_data(doris::vectorized::Block*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> &, std::vector<doris::vectorized::ColumnSelectVector>*, unsigned long, unsigned long*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_group_reader.cpp:425 apache#12 doris::vectorized::RowGroupReader::get_next_block(doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_group_reader.cpp:311 apache#13 doris::vectorized::ParquetReader::get_next(doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/format/parquet/vparquet_reader.cpp:533 apache#14 doris::vectorized::VFileScanner::_get_next_reader_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/scan/vfile_scanner.cpp:368 apache#15 doris::vectorized::VFileScanner::_get_block_impl(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/scan/vfile_scanner.cpp:411 apache#16 doris::vectorized::VScanner::get_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/scan/vscanner.cpp:431 apache#17 doris::vectorized::VScanner::get_block(doris::RuntimeState*, doris::vectorized::Block*, bool*) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/scan/vscanner.cpp:96 apache#18 doris::vectorized::ScannerScheduler::submit(doris::vectorized::ScannerContext*, std::shared_ptr<doris::vectorized::ScanTask>) at /mnt/disk1/yy/git/enterprise-core/be/src/vec/exec/scan/scanner_context.cpp:96 apache#19 doris::Thread::supervise_thread(void*) at /mnt/disk1/yy/git/enterprise-core/be/src/util/thread.cpp:499 apache#20 start_thread apache#21 clone in /lib64/libc.so.6 ``` ### Solution It is not known why the parquet dictionary page will be null in this case, causing a crash. This PR adds defensive code to prevent the crash.
yiguolei
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Sep 21, 2024
## Proposed changes Backport #40643
morningman
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Sep 26, 2024
## Proposed changes Backport #40643
morningman
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Nov 21, 2024
…#41074) ## Proposed changes Backport apache#40643
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Proposed changes
Issue
Solution
It is not known why the parquet dictionary page will be null in this case, causing a crash. This PR adds defensive code to prevent the crash.