| connect_timeout | 10 | | delayed_insert_timeout | 300 | | have_statement_timeout | YES | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 30 | | lock_wait_timeout | 31536000 | | net_...
| connect_timeout | 43200 | | delayed_insert_timeout | 300 | | have_statement_timeout | YES | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 120 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 28800 | | lock_wait_timeout | 31536000 | | ...
| have_statement_timeout | YES | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | | interactive_timeout | 28800 | | lock_wait_timeout | 31536000 | | net_read_timeout | 30 | | net_write_timeout | 60 | | rpl_...
① mysql链接数太多,已经超出我们设置的默认链接数;导致链接不上数据库,业务自然也拉跨了 ② 可能存在mysql设置wait_timeout的值偏大,导致连接的空闲等待太长,则造成当前连接数变大 解决问题的思路: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ### 查询mysql数据库当前设置的最大连接数 mysql> show va...
8:have_statement_timeout 全局变量,默认YES 表示是语句执行超时功能是否可用,默认开启。 9:innodb_adaptive_hash_index_parts 全局变量,默认8,范围1～512。 表示自适应哈希索引开始支持分区,避免之前单个索引导致的锁争用问题,默认划分成8。最大设置为512。
'%timeout%'; +---+---+ | Variable_name | Value | +---+---+ | connect_timeout | 10 | | delayed_insert_timeout | 300 | | have_statement_timeout | YES | | innodb_flush_log_at_timeout | 1 | | innodb_lock_wait_timeout | 50 | | innodb_rollback_on_timeout | OFF | ...
ERROR1205(HY000):Lock wait timeout exceeded;tryrestarting transaction When a lock wait timeout occurs,thecurrentstatement is not executed.Thecurrenttransaction is not rolled back.(To have the entire transaction roll back,start the server with the –innodb_rollback_on_timeout option,availableasofMyS...
have_query_cache Deprecated in version 5.7.20 have_statement_timeout Introduced in version 5.7.4 ignore-db-dir Deprecated in version 5.7.16 ignore_db_dirs Deprecated in version 5.7.16 initialize Introduced in version 5.7.6 initialize-insecure ...
用户仪表板组件报错“com.mysql.jdbc.exceptions.MySQLTimeoutException: Statement cancelled due to timeout or client request”。 问题原因 查询超时,数据库抛出错误。 解决方案 1.数据表加索引,优化SQL,给关联字段增加索引。 2.子查询尽量缩小搜索范围,减少join的次数。
have_ssl: DISABLED have_statement_timeout: YES have_symlink: DISABLED host_cache_size: 628 hostname: plv-fs7-a003 identity: 0 ignore_builtin_innodb: OFF ignore_db_dirs: init_connect: SET NAMES utf8 init_file: init_slave: innodb_adaptive_flushing: ON ...