如何将Ctrl-Break发送到正在运行的Linux进程？ [英] How can one send a Ctrl-Break to a running Linux process?

问题描述

我在Sun的JDK 1.4.2_18上运行的应用程序中调试内存泄漏。看来这个版本支持命令行参数-XX：+ HeapDumpOnCtrlBreak，它可能导致JVM在遇到控制中断时转储堆。如何将其发送到Linux机器上的后台进程？似乎杀死信号是应该工作的方式，但我杀了-l不会报告任何显然是Ctrl-Break的事情，至少在我的Ubuntu盒子上。

I am debugging a memory leak in an application running on Sun's JDK 1.4.2_18. It appears that this version supports the command line param -XX:+HeapDumpOnCtrlBreak which supposedly causes the JVM to dump heap when it encounters a control-break. How does one send this to a background process on a Linux box? It appears that kill signals are the way this ought to work, but I kill -l doesn't report anything that is obviously a Ctrl-Break, at least on my Ubuntu box.

更新：我测试了使用Sun JDK 1.4.2_18杀死-3（_14是第一个以这种方式转储堆），并且它有效。已创建堆转储文件，并且该进程仍在运行。

Update: I tested Kill -3 with Sun JDK 1.4.2_18 (_14 was the first to dump heap this way), and it worked. A heap dump file was created, and the process was still running.

推荐答案

kill -QUIT可能会执行此操作（它将生成一个在Windows上由ctrl-break生成的线程转储。虽然我没有尝试使用堆转储选项。

kill -QUIT might do it (it will generate a thread dump which is generated by ctrl-break on windows. I haven't tried it with the heap dump option though).

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