JVM 参数调优 -【Metaspace Size】
本套视频是由HeapDump社区推出的 JVM 参数系列课程~
本期参数介绍
从JDK8开始，JVM将原来存放klass元数据的Perm换成了Metaspace，Perm时期会为klass元数据分配一块内存，如果设置不够用就会抛出OOM，Metaspace的出现希望能解决这个问题，Metaspace确实可以最大限度来使用堆外的内存，但是挺遗憾，还是有一些参数会导致Metaspace抛出OOM
那今天我们就来聊下和Metaspace大小相关的参数，说起Metaspace的大小参数，有很多人肯定会想到MetaspaceSize和MaxMetaspaceSize，但是其实不然，这两个参数是控制Metaspace触发GC的，真正和Metaspace的内存大小有关的参数主要是下面的几个
CompressedClassSpaceSize：CompressedClassSpaceSize
InitialBootClassLoaderMetaspaceSize：InitialBootClassLoaderMetaspaceSize
- HeapDump 社区：https://heapdump.cn
- 视频出处：https://www.bilibili.com/video/av925621118
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