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tomcat参数配置

2016-02-16 16:25 609 查看

参考http://tomcat.apache.org/tomcat-7.0-doc/config/executor.html中配置参数

The default implementation supports the following attributes:

Attribute	Description
threadPriority	(int) The thread priority for threads in the executor, the default is 5 (the value of the Thread.NORM_PRIORITY constant)
daemon	(boolean) Whether the threads should be daemon threads or not, the default is true
namePrefix	(String) The name prefix for each thread created by the executor. The thread name for an individual thread will be namePrefix+threadNumber
maxThreads	(int) The max number of active threads in this pool, default is 200
minSpareThreads	(int) The minimum number of threads always kept alive, default is 25
maxIdleTime	(int) The number of milliseconds before an idle thread shutsdown, unless the number of active threads are less or equal to minSpareThreads. Default value is 60000 (1 minute)
maxQueueSize	(int) The maximum number of runnable tasks that can queue up awaiting execution before we reject them. Default value is Integer.MAX_VALUE
prestartminSpareThreads	(boolean) Whether minSpareThreads should be started when starting the Executor or not, the default is false
threadRenewalDelay	(long) If a ThreadLocalLeakPreventionListener is configured, it will notify this executor about stopped contexts. After a context is stopped, threads in the pool are renewed. To avoid renewing all threads at the same time, this option sets a delay between renewal of any 2 threads. The value is in ms, default value is 1000 ms. If value is negative, threads are not renewed.

ibute	Description
线程优先级	(int) 线程在执行器中的优先级, 默认值为5 (the value of the Thread.NORM_PRIORITY constant)
守护进程	(boolean) 线程是否应有守护线程, 默认为true
namePrefix	(String) The name prefix for each thread created by the executor. The thread name for an individual thread will be namePrefix+threadNumber
最大线程数	(int) 线程池中最大的活跃线程数，默认值200
最小备用线程	(int) 保持存活的最小线程数，默认值25
线程最大闲置时间	(int) 大于最小备用线程小于最大线程数，闲置线程的存活时间,. 默认 60000 (1 minute)1分钟
maxQueueSize	(int) The maximum number of runnable tasks that can queue up awaiting execution before we reject them. Default value is Integer.MAX_VALUE
prestartminSpareThreads	(boolean) Whether minSpareThreads should be started when starting the Executor or not, the default is false
threadRenewalDelay	(long) If a ThreadLocalLeakPreventionListener is configured, it will notify this executor about stopped contexts. After a context is stopped, threads in the pool are renewed. To avoid renewing all threads at the same time, this option sets a delay between renewal of any 2 threads. The value is in ms, default value is 1000 ms. If value is negative, threads are not renewed.

还有一个参数是 acceptCount
当tomcat起动的线程数达到最大时，接受排队的请求个数。默认值为100

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