I am a student new to cephfs. I think there are 2 steps to finding a file: 1. Find out which objects belong to this file.
2. Use CRUSH to find out OSDs. What I don’t know is how does CephFS get the object list of the file. Does MDS save all object list of all files? Or CRUSH can use some information(what information?) to calculate the list of objects? In other words, where is the object list of the file saved?
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