I can reproduce really easely now :
terminate called after throwing an instance of 'std::bad_alloc'
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what(): std::bad_alloc
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250324 17:41:46 [ERROR] /usr/sbin/mariadbd got signal 6 ;
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Sorry, we probably made a mistake, and this is a bug.
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Your assistance in bug reporting will enable us to fix this for the next release.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs about how to report
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a bug on https://jira.mariadb.org/.
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Please include the information from the server start above, to the end of the
|
information below.
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Server version: 10.11.11-MariaDB-deb12-log source revision: e69f8cae1a15e15b9e4f5e0f8497e1f17bdc81a4
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The information page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/
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contains instructions to obtain a better version of the backtrace below.
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Following these instructions will help MariaDB developers provide a fix quicker.
|
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Attempting backtrace. Include this in the bug report.
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(note: Retrieving this information may fail)
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Thread pointer: 0x0
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stack_bottom = 0x0 thread_stack 0x49000
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Can't start addr2line
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/usr/sbin/mariadbd(my_print_stacktrace+0x2e)[0x55e77f50200e]
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/usr/sbin/mariadbd(handle_fatal_signal+0x229)[0x55e77efe0e89]
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/lib/x86_64-linux-gnu/libc.so.6(+0x3c050)[0x7fd928e5b050]
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/lib/x86_64-linux-gnu/libc.so.6(+0x8aebc)[0x7fd928ea9ebc]
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/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x12)[0x7fd928e5afb2]
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/lib/x86_64-linux-gnu/libc.so.6(abort+0xd3)[0x7fd928e45472]
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0x9d919)[0x7fd92909d919]
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0xa8e1a)[0x7fd9290a8e1a]
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0xa8e85)[0x7fd9290a8e85]
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0xa90d8)[0x7fd9290a90d8]
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0x9d524)[0x7fd92909d524]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb18FilePrefetchBuffer8PrefetchEPNS_22RandomAccessFileReaderEmmb+0x1e7)[0x7fd8bcef7db7]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb18FilePrefetchBuffer16TryReadFromCacheEmmPNS_5SliceEb+0x94)[0x7fd8bcef7f34]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb12BlockFetcher17ReadBlockContentsEv+0x8a)[0x7fd8bce090aa]
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/usr/lib/mysql/plugin/ha_rocksdb.so(+0x3d86e6)[0x7fd8bcdd86e6]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZNK7rocksdb15BlockBasedTable13RetrieveBlockINS_5BlockEEENS_6StatusEPNS_18FilePrefetchBufferERKNS_11ReadOptionsERKNS_11BlockHandleERKNS_17UncompressionDictEPNS_13CachableEntryIT_EENS_9BlockTypeEPNS_10GetContextEPNS_23BlockCacheLookupContextEbb+0x1bc)[0x7fd8bcdf13ac]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZNK7rocksdb15BlockBasedTable20NewDataBlockIteratorINS_13DataBlockIterEEEPT_RKNS_11ReadOptionsERKNS_11BlockHandleES4_NS_9BlockTypeEPNS_10GetContextEPNS_23BlockCacheLookupContextENS_6StatusEPNS_18FilePrefetchBufferEb+0x490)[0x7fd8bcdf3970]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb23BlockBasedTableIteratorINS_13DataBlockIterENS_5SliceEE13InitDataBlockEv+0xc9)[0x7fd8bcdfbf59]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb23BlockBasedTableIteratorINS_13DataBlockIterENS_5SliceEE11SeekToFirstEv+0x1c8)[0x7fd8bcdff348]
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/usr/lib/mysql/plugin/ha_rocksdb.so(+0x33c5e7)[0x7fd8bcd3c5e7]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb13CompactionJob25ProcessKeyValueCompactionEPNS0_18SubcompactionStateE+0x396)[0x7fd8bcedcc06]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb13CompactionJob3RunEv+0xaa5)[0x7fd8bcedeb85]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl20BackgroundCompactionEPbPNS_10JobContextEPNS_9LogBufferEPNS0_19PrepickedCompactionENS_3Env8PriorityE+0xeb9)[0x7fd8bcc8e2c9]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl24BackgroundCallCompactionEPNS0_19PrepickedCompactionENS_3Env8PriorityE+0xf3)[0x7fd8bcc92f23]
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2025-03-24 17:41:46 0 [Note] /usr/sbin/mariadbd (initiated by: unknown): Normal shutdown
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl16BGWorkCompactionEPv+0x3a)[0x7fd8bcc9398a]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb14ThreadPoolImpl4Impl8BGThreadEm+0x260)[0x7fd8bce4e5f0]
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2025-03-24 17:41:46 0 [Note] Event Scheduler: Killing the scheduler thread, thread id 2
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2025-03-24 17:41:46 0 [Note] Event Scheduler: Waiting for the scheduler thread to reply
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb14ThreadPoolImpl4Impl15BGThreadWrapperEPv+0x5f)[0x7fd8bce4e7af]
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2025-03-24 17:41:46 0 [Note] Event Scheduler: Stopped
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/lib/x86_64-linux-gnu/libstdc++.so.6(+0xd44a3)[0x7fd9290d44a3]
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/lib/x86_64-linux-gnu/libc.so.6(+0x891c4)[0x7fd928ea81c4]
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/lib/x86_64-linux-gnu/libc.so.6(+0x10985c)[0x7fd928f2885c]
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Writing a core file...
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Working directory at /srv/mysql/data
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Resource Limits (excludes unlimited resources):
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Limit Soft Limit Hard Limit Units
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Max stack size 8388608 unlimited bytes
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Max core file size 0 unlimited bytes
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Max processes 63785 63785 processes
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Max open files 32768 32768 files
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Max locked memory 524288 524288 bytes
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Max pending signals 63785 63785 signals
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Max msgqueue size 819200 819200 bytes
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Max nice priority 0 0
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Max realtime priority 0 0
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Core pattern: core
|
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Kernel version: Linux version 6.1.0-31-amd64 (debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07)
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my.cnf for RocksDB options
rocksdb_flush_log_at_trx-commit=2
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rocksdb_allow_concurrent_memtable_write=1
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rocksdb_allow_to_start_after_corruption=1
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rocksdb_db_write_buffer_size=256M
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rocksdb_block_cache_size=1G
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rocksdb_deadlock_detect=1
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rocksdb_delayed_write_rate=167772160
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rocksdb_table_cache_numshardbits=6
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rocksdb_print_snapshot_conflict_queries=ON
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rocksdb_two_write_queues=ON
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rocksdb_use_direct_io_for_flush_and_compaction=ON
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rocksdb_wal_recovery_mode=2
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rocksdb_max_total_wal_size = 1G
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rocksdb_compaction_readahead_size=1G
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rocksdb_max_background_jobs=4
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rocksdb_compaction_readahead_size=16M # Optimisation pour éviter des lectures trop petites
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rocksdb_use_direct_reads=ON
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rocksdb_use_direct_io_for_flush_and_compaction=ON
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rocksdb_skip_fill_cache=ON
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it's complain about lack of memory : (the server got RAM 10Go free)
[ERROR] mariadbd: Out of memory (Needed 33554400 bytes)
|
...
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But more than 10Go available on server, when swap is activated RocksDB can took memory as defined if not complain about lack of memory.
read : https://jira.mariadb.org/browse/MDEV-36252?filter=-2 for more informations
- is part of
-
MDEV-36252
RocksDB => MariaDB Blocked (100% of cases)
-
-
Open
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Major
What is funny when removed swap, I was waiting totally an other behavior.