Skip to content

修改keepAliveTime参数详解 #2123

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Snailclimb merged 1 commit into from
Aug 7, 2023
Merged

修改keepAliveTime参数详解 #2123

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions docs/java/concurrent/java-concurrent-questions-03.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -308,7 +308,7 @@ public ScheduledThreadPoolExecutor(int corePoolSize) {

`ThreadPoolExecutor`其他常见参数 :

- **`keepAliveTime`**:线程池中的线程数量大于 `corePoolSize` 的时候，如果这时没有新的任务提交，核心线程外的线程不会立即销毁，而是会等待，直到等待的时间超过了 `keepAliveTime`才会被回收销毁；
- **`keepAliveTime`**:线程池中的线程数量大于 `corePoolSize` 的时候，如果这时没有新的任务提交，多余的空闲线程不会立即销毁，而是会等待，直到等待的时间超过了 `keepAliveTime`才会被回收销毁，线程池回收线程时，会对核心线程和非核心线程一视同仁，直到线程池中线程的数量等于 `corePoolSize` ，回收过程才会停止。
- **`unit`** : `keepAliveTime` 参数的时间单位。
- **`threadFactory`** :executor 创建新线程的时候会用到。
- **`handler`** :饱和策略。关于饱和策略下面单独介绍一下。
Expand Down Expand Up @@ -955,4 +955,4 @@ public int await() throws InterruptedException, BrokenBarrierException {
- Java 并发之 AQS 详解：https://www.cnblogs.com/waterystone/p/4920797.html
- Java 并发包基石-AQS 详解：https://www.cnblogs.com/chengxiao/archive/2017/07/24/7141160.html

<!-- @include: @article-footer.snippet.md -->
<!-- @include: @article-footer.snippet.md -->