mysqld遇到异常0xc0000005

Question

抱歉，我的英语不流利。我是MySQL数据库的新手。我在 Windows Server 2022 Datacenter 上使用 MySQL 8.0.30。我有一个问题，MySQL 经常崩溃（MySQL 服务停止），并且总是带有相同的错误日志。我试图找到问题的根源，但没有解决。

有关信息，我在具有以下规格的同一设备上使用了 Grafana Web Server 和 MySQL： 处理器 Intel(R) Xeon(R) Silver 4208 CPU @ 2.10GHz 2.10 GHz 已安装 RAM 16.0 GB（15.6 GB 可用） 系统类型 64位操作系统，基于x64的处理器

请给我建议来解决这个问题。 先谢谢了

这是错误 MySQL 日志详细信息：

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.

我尝试减少数据读写，然后增加客户端连接限制

Answer 1

每秒速率 = RPS

为您的 my.ini [mysqld] 部分考虑的建议，以避免意外关闭。

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

**** 这是当前名称，而不是已弃用的每个错误日志的 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

请查看个人资料以获取联系信息。您有很多机会通过额外的全局变量更改来提高性能。

想听听您如何在 96 秒的正常运行时间内获得如此多的活动的故事。 :)