mysqld遇到異常0xc0000005

Question

抱歉，我的英文不流利。我是MySQL資料庫的新手。我在 Windows Server 2022 Datacenter 上使用 MySQL 8.0.30。我有一個問題，MySQL 經常崩潰（MySQL 服務停止），並且總是帶有相同的錯誤日誌。我試著找出問題的根源，但沒有解決。

有關信息，我在具有以下規格的同一設備上使用了 Grafana Web Server 和 MySQL： 處理器 Intel(R) Xeon(R) Silver 4208 CPU @ 2.10GHz 2.10 GHz 已安裝 RAM 16.0 GB（15.6 GB 可用） 系統類型 64位元作業系統，基於x64的處理器

請給我建議來解決這個問題。 先謝謝了

這是錯誤 MySQL 日誌詳細資訊：

10:01:25 UTC - mysqld got exception 0xc0000005 ;
Most likely, you have hit a bug, but this error can also be caused by malfunctioning hardware.
Thread pointer: 0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
7ffa8ac5b496    jemalloc.dll!???
7ffa8ac5b918    jemalloc.dll!???
7ffa8ac5ef91    jemalloc.dll!je_realloc()
7ffa82547ddd    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffa8258bcea    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffa8258e7e3    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffa8255956d    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffa8246263c    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffa826092ff    libcrypto-1_1-x64.dll!CRYPTO_memcmp()
7ffab7d47167    ntdll.dll!RtlActivateActivationContextUnsafeFast()
7ffab7d4848a    ntdll.dll!LdrShutdownThread()
7ffab7d28bae    ntdll.dll!RtlExitUserThread()
7ffab5851b8a    KERNELBASE.dll!FreeLibraryAndExitThread()
7ffab55c6c5d    ucrtbase.dll!_recalloc()
7ffab55f3c19    ucrtbase.dll!_endthreadex()
7ff682fc4605    mysqld.exe!?modify_thread_cache_size@Per_thread_connection_handler@@SAXK@Z()
7ff6844987a9    mysqld.exe!?deallocate@?$allocator@V?$sub_match@V?$_String_const_iterator@V?$_String_val@U?$_Simple_types@D@std@@@std@@@std@@@std@@@std@@QEAAXQEAV?$sub_match@V?$_String_const_iterator@V?$_String_val@U?$_Simple_types@D@std@@@std@@@std@@@2@_K@Z() [truncated, 260 bytes total]
7ff68405139c    mysqld.exe!?my_thread_self_setname@@YAXPEBD@Z()
7ffab55c6b4c    ucrtbase.dll!_recalloc()
7ffab7274ed0    KERNEL32.DLL!BaseThreadInitThunk()
7ffab7d9e44b    ntdll.dll!RtlUserThreadStart()
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
 information that should help you find out what is causing the crash.

我嘗試減少資料讀寫，然後增加客戶端連線限制

Answer 1

每秒速率 = RPS

為您的 my.ini [mysqld] 部分考慮的建議，以避免意外關閉。

innodb_thread_concurrency=10  # from 33 for reasonable limit for your 16 available total threads 
innodb_redo_log_capacity=96M  # from innodb_log_file_size name and 48M limit

**** 這是目前名稱，而不是已棄用的每個錯誤日誌的 innodb_log_file_size

innodb_buffer_pool_size=8G  # from 124M for about 1/2 available RAM to reduce innodb_data_reads RPS of 31.
read_rnd_buffer_size=32K  from 256K to reduce handler_read_rnd_next RPS of 63,041
thread_cache_size=128  # from 10 to reduce threads_created RPS of ~ 5

請查看個人資料以取得聯絡資訊。您有很多機會透過額外的全域變數變更來提高效能。

想聽聽您如何在 96 秒的正常運行時間內獲得如此多的活動的故事。 :)