Java 如何正确删除catalina.out？
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How to correct delete catalina.out?
提问by user710818
I couldn't restart Tomcat webserver. But catalina.out get very big. I have tried delete on test server and created new empty. But Tomcat doesn't write anymore in new catalina.out. How correct delete/create empty new one ?
我无法重新启动 Tomcat 网络服务器。但是 catalina.out 变得非常大。我尝试在测试服务器上删除并创建新的空。但是Tomcat在新的catalina.out中不再写了。如何正确删除/创建空的新的？
采纳答案by Sergo Pasoevi
If you are using Gnu/Linux or Mac OS X, you can just do:
如果你使用 Gnu/Linux 或 Mac OS X，你可以这样做：
echo "" > catalina.out
or even shorter:
甚至更短：
> catalina.out
回答by fge
In base Tomcat installs, catalina.outis usually the result of stdout/stderr redirections via the Tomcat launcher script.
在基础 Tomcat 安装中，catalina.out通常是通过 Tomcat 启动程序脚本进行 stdout/stderr 重定向的结果。
If you run Tomcat on a Unix system, and if you delete the file while Tomcat is running, the problem is that the process will still have a descriptor open to that file and continue to write on it. The solution is therefore to use a program dedicated to handling such cases. For instance, logrotate (which is standard in pretty much all Linux distributions).
如果您在 Unix 系统上运行 Tomcat，并且如果您在 Tomcat 运行时删除该文件，则问题在于该进程仍将打开该文件的描述符并继续在其上写入。因此，解决方案是使用专用于处理此类情况的程序。例如，logrotate（在几乎所有 Linux 发行版中都是标准的）。
回答by Aqura
for me
为了我
echo "" > catalina.out
or
或者
sudo echo "" > catalina.out
didn't work, as the file was created with root/other user privilege
不起作用，因为该文件是使用 root/其他用户权限创建的
sudo truncate -s 0 catalina.out
worked for me. here -s is for size and I am setting the file size to 0
为我工作。这里 -s 用于大小，我将文件大小设置为 0
