看MongoDB的日志是怎么工作的

jieforest · 发表于 2012-10-11 10:00

The last step is that mongod remaps the shared view to the private view. This prevents the private view from getting too “dirty” (having too many changes from the shared view it was mapped from).

jieforest · 发表于 2012-10-12 12:50

And that’s how journaling works. Thanks to Richard, who gave the best explanation of this I’ve heard (Richard is going to be teaching an online course on MongoDB this fall, if you’re interested in more wisdom from the source).

jieforest · 发表于 2012-10-12 12:50

over.

jimn1982 · 发表于 2012-10-14 06:52

这个文档型数据库可以保存在不同的数据文件中吗？就是能否存在多个数据文件。对于海量的数据，能否有选择的把哪些数据加载到内存，可以控制而不是全部都加载，因为如果数据量非常大的话，内存不可能有这么大。