使用选项_JAVA_OPTIONS扩大jvm堆大小

在终端输入

export _JAVA_OPTIONS="-Xmx2000M"

使用命令

java -XshowSettings:all

查看信息

Picked up _JAVA_OPTIONS: -Xmx2200M
VM settings:
    Max. Heap Size (Estimated): 1.91G
    Ergonomics Machine Class: server
    Using VM: OpenJDK 64-Bit Server VM

可以看到选择了

选项_JAVA_OPTIONS

参考

https://stackoverflow.com/questions/880855/increase-the-java-heap-size-permanently