2019-08-30 13:39:10 140297599895296 [ERROR] RocksDB: Error detected in background, Status Code: 2, Status: Corruption: block checksum mismatch: expected 4228173794, got 4228174270 in ./#rocksdb/219203.sst offset 18973184 size 16381
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2019-08-30 13:39:10 140297599895296 [ERROR] RocksDB: BackgroundErrorReason: 1
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2019-08-30 13:39:10 140297599895296 [Note] RocksDB: Creating the file ./#rocksdb/ROCKSDB_CORRUPTED to abort mysqld restarts. Remove this file from the data directory after fixing the corruption to recover.
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190830 13:39:10 [ERROR] mysqld got signal 6 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 10.2.26-MariaDB-1:10.2.26+maria~bionic-log
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key_buffer_size=20971520
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read_buffer_size=131072
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max_used_connections=2
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max_threads=602
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thread_count=12
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 9973526 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x0
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x0 thread_stack 0x30000
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/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x55d896fe2a0e]
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/usr/sbin/mysqld(handle_fatal_signal+0x513)[0x55d896a5e553]
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/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f99b773a890]
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/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7)[0x7f99b6c4ee97]
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/lib/x86_64-linux-gnu/libc.so.6(abort+0x141)[0x7f99b6c50801]
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/usr/lib/mysql/plugin/ha_rocksdb.so(+0x1ab2b1)[0x7f999583c2b1]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb12EventHelpers23NotifyOnBackgroundErrorERKSt6vectorISt10shared_ptrINS_13EventListenerEESaIS4_EENS_21BackgroundErrorReasonEPNS_6StatusEPNS_17InstrumentedMutexEPb+0x138)[0x7f99958cc228]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb12ErrorHandler10SetBGErrorERKNS_6StatusENS_21BackgroundErrorReasonE+0x157)[0x7f99958cae97]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl20BackgroundCompactionEPbPNS_10JobContextEPNS_9LogBufferEPNS0_19PrepickedCompactionENS_3Env8PriorityE+0x1849)[0x7f9995881569]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl24BackgroundCallCompactionEPNS0_19PrepickedCompactionENS_3Env8PriorityE+0x12c)[0x7f99958888fc]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb6DBImpl16BGWorkCompactionEPv+0x97)[0x7f9995888fe7]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb14ThreadPoolImpl4Impl8BGThreadEm+0x270)[0x7f9995b24c80]
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/usr/lib/mysql/plugin/ha_rocksdb.so(_ZN7rocksdb14ThreadPoolImpl4Impl15BGThreadWrapperEPv+0x56)[0x7f9995b24e56]
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/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xbd66f)[0x7f99b745c66f]
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nptl/pthread_create.c:463(start_thread)[0x7f99b772f6db]
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/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f99b6d3188f]
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
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information that should help you find out what is causing the crash.
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Writing a core file...
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Working directory at /var/lib/mysql
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Resource Limits:
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Fatal signal 11 while backtracing
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2019-08-30 13:39:20 139830559913280 [ERROR] RocksDB: There was a corruption detected in RockDB files. Check error log emitted earlier for more details.
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2019-08-30 13:39:20 139830559913280 [ERROR] RocksDB: The server will exit normally and stop restart attempts. Remove ./#rocksdb/ROCKSDB_CORRUPTED file from data directory and start mysqld manually.
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Bug
Major