使用嵌入式Tomcat启动Spring Boot应用程序时如何配置堆大小? [英] How can I configure the heap size when starting a Spring Boot application with embedded Tomcat?

问题描述

我正在尝试将基于 Spring Boot 的Web应用程序部署到生产中.该应用程序是使用Spring Boot 1.0.1构建的，并嵌入了默认的Tomcat 7作为应用程序服务器.使用java -jar myapp.jar命令行启动应用程序时，我想为应用程序分配更大的内存.

I am trying to deploy a Spring Boot powered web app to production. The app is built with Spring Boot 1.0.1 and has the default Tomcat 7 embedded as application server. I want to allocate larger memory to the app when start the app with java -jar myapp.jar command line.

我应该使用 JVM 参数(例如-Xms -Xmx)还是使用环境变量(例如JAVA_OPTS?我试图在文档或Google中寻找答案，但没有得到答案.任何人都可以给些提示吗?

Should I use JVM parameter such as -Xms -Xmx or use environment variable such as JAVA_OPTS? I have tried to look for the answer in documentation or google it, but I did not get an answer. Can anyone give some hints?

推荐答案

只需使用设置JVM的任何常规机制即可.可在命令行上找到文档:

Just use whatever normal mechanism you would to set up the JVM. Documentation is available on the command line:

$ java -X
...
-Xms<size>        Set initial Java heap size
-Xmx<size>        Set maximum Java heap size
...

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