在OutOfMemoryError Linux上自动重启jar [英] Auto restart jar on OutOfMemoryError Linux

问题描述

如何在Linux中自动重新启动可运行的jar文件.

How can i auto-restart the runnable jar file in Linux.

我正在单独的屏幕上在linux VPS中运行jar，但是由于OUTOFMEMORYERROR Java堆空间，它在一段时间后停止了运行.

I am running jar in linux VPS in a separate screen but it stops after some time due to OUTOFMEMORYERROR Java heap space.

推荐答案

编写一个简单的启动器，一旦启动，它将启动应用程序.像这样:

Write a simple launcher which will restart the application once it came down. Something like this:

#!/bin/sh

TEMPFILE=`mktemp`
while true ; do
  echo "`date` Starting application" >> $TEMPFILE
  java -XX:OnOutOfMemoryError="kill -9 %p" -jar application.jar
  sleep 5
done

为了确保VM正确完成，您可能需要在主循环中考虑以下内容:

Just to be sure that the VM comes done correcly, you might want to consider the following around your main loop:

try {
    // main loop
    businessLogic();
} catch (OutOfMemoryError E) {
    System.exit(1);
}

我个人成功地使用了 Java Service Wrapper 来立即重新启动，然后使apache tomcat失败，重新部署了太多应用程序后，内存泄漏就遭受了痛苦.您可能想看看它，这很简单.

I've personally succesfully used the Java Service Wrapper for restarting a now and then failing apache tomcat which suffered from memory leaks after applications have been redeployed too much. You might want to take a look at it, it's pretty straight forward.

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