thread_pool_idle_timeout:默认值60秒,空闲线程在空闲多长时间之后退出。 thread_pool_high_prio_tickets:默认值 4294967295。控制高优先级队列策略, 给每个新的连接授予的tickets大小,如果该值设置为0,表示禁止进入高优先级队列。 thread_pool_high_prio_mode:取值范围 transactions, statements, none,默认值 transacti...
取值0~4294967295,当开启了优先队列模式后(thread_pool_high_prio_mode=transactions),每个连接最多允许thread_pool_high_prio_tickets次被放到优先队列中,之后放到普通队列中,默认为4294967295 thread_pool_idle_timeout worker线程最大空闲时间,单位为秒,超过限制后会退出,默认60 thread_pool_max_threads threadpool中...
| thread_pool_high_prio_mode | transactions | | thread_pool_high_prio_tickets | 4294967295 | | thread_pool_idle_timeout | 60 | | thread_pool_max_threads | 100000 | | thread_pool_oversubscribe | 40 | | thread_pool_size | 12 | | thread_pool_stall_limit | 500 | | thread_stack |...
程序连接数据库响应慢!是Thread pool参数捣的鬼吗? 在很长一段时间,都会出现程序连接数据库,出现响应慢的情况,正常在几到几十毫秒之间,但是偶尔会出现上百毫秒的情况;修改thread_cache_size参数后,重新测试程序连接数据库响应时间,速度极快,不再出现程序连接数据库响应慢的情况! 数据库版本:percona-mysql 5.6.16 ...
The most time is consumed by a singleton. Could the change of request-timeout-seconds property help in this case? It should prevent the timeout. /I would recommend using jstack or visualvm for this task. / I'm not familiar with any of this tool unfortunately. I looked through short how...
loose_thread_pool_idle_timeout 释放线程池空闲线程的时间阈值,超过此时间,没有服务任何请求的空闲线程将被释放。 取值:0~31536000。 默认值:60。 单位:秒。 说明 仅PolarDB MySQL版5.6和5.7版本支持该参数。 loose_thread_pool_oversubscribe 每个线程组中允许的活跃线程的数量。
windows platform. I tried to put -1 for idle-thread-timeout-seconds property of the admin-thread-pool in the Glassfish config file, but it gave no effect. I tried it with different glassfish and jdk versions in different combinations (GF v3.2.1, v3.1.2.2, jdk 1.7, 1.6) it works for...
threadpool_idle_timeout Idle time before a thread is destroyed, in seconds. threadpool_long_conn_time If the login time exceeds the value of this parameter, the login information is printed in logs. threadpool_max_threads Maximum number of threads that can be created in a thread pool. ...
构建新的线程,可以通过 setKeepAliveTime来动态设置时间,如果设置Long.MAX_VALUE那么idle状态的 线程将会永远不会关闭。默认keepAliveTime不作用于corePoolSize大小的线程。可以通过设置 allowCoreThreadTimeOut来让keepAliveTime也作用于核心线程。 getLargestPoolSize() ...
c++的ThreadPool,OpenHarmony源码实现版赏析和使用 前言 c++11虽然加入了线程库thread,然而 c++ 对于多线程的支持还是比较低级,稍微高级一点的用法都需要自己去实现。比如备受期待的网络库至今标准库里还没有支持,常用acl或asio替代。鸿蒙OpenHarmony源码中的网络栈模块部分,也是十分漂亮的实现,值得学习研究。