new

2025-08-21 18:57:57 +08:00
parent bdd2b461dc
commit 984fa247d7
13 changed files with 434 additions and 66 deletions
--- a/运维/my.cnf
+++ b/运维/my.cnf
@ -0,0 +1,36 @@
+[mysqld]
+# 内存核心配置 (适配64GB内存)
+innodb_buffer_pool_size = 44G  # 提升至物理内存的68%
+innodb_buffer_pool_instances = 16  # 匹配CPU核心数
+
+# 线程与连接优化 (适配281连接/64核心)
+thread_cache_size = 150  # 调整为连接数的一半
+innodb_thread_concurrency = 0  # 禁用并发限制，让MySQL自动管理
+innodb_read_io_threads = 16
+innodb_write_io_threads = 16
+
+# 每连接内存优化 (关键!)
+max_connections = 400
+sort_buffer_size = 512K  # 原256K过低
+read_buffer_size = 256K
+read_rnd_buffer_size = 512K
+join_buffer_size = 512K
+thread_stack = 512K  # 防止复杂查询溢出
+
+# 临时表与缓存优化
+tmp_table_size = 128M
+max_heap_table_size = 128M
+table_open_cache = 10000
+table_definition_cache = 4000
+
+# InnoDB日志优化 (SSD专用)
+innodb_log_file_size = 4G  # 增大日志文件
+innodb_log_files_in_group = 2  # 共8GB日志
+innodb_io_capacity = 20000  # SSD优化
+innodb_io_capacity_max = 40000
+innodb_flush_method = O_DIRECT_NO_FSYNC
+
+# 超时与维护
+wait_timeout = 120
+interactive_timeout = 300
+innodb_purge_threads = 4