"in-memory" 是什么意思?在 hadoop 的上下文中

what does "in-memory" means ? In the context of hadoop

我读了这行

when you are starting namenode, latest fsimage file is load into “in-memory”. and at the same time, edit log file is also loaded into memory if fsimage file doesn’t contain up-to date information

来自 https://data-flair.training/forums/topic/in-which-location-namenode-stores-its-metadata-and-why/ 他们使用术语“内存中”和“内存”,它们有什么不同吗?

不,它们没有什么不同。它们被加载到 RandomAccessFile if that helps to think about. For reference here is FSImage。帮助您了解这是如何完成的。