即使文件/目录已经被另一个进程删除了（nlink==0） 这样的语义。 这部分内容在fuse的相关接口中也有描述如下： /** * Forget about an inode * * This function is called when the kernel removes an inode * from its internal caches. * * The inode's lookup decreased. * * Inodes with a non-zero lookup count may receive request from * the kernel even after calls to unlink, rmdir or (when * overwriting an existing file) rename. Filesystems must handle * such properly and it is recommended to defer removal * of the inode until the lookup count reaches zero. Calls to * unlink, rmdir or rename will be followed closely by forget * unless the file or directory

specified NEBDServer through Unix Domain sockets. l Nebdserver: Accepts requests from NEBDClient and calls Curve Client for corresponding processing. it can receive requests from different NEBDClients entry, we call it commit5. After commit, apply can be applied. During apply, BRaft will call the function that we pass in through the user state machine to complete the disk write operation. CurveFS

FUSE_CAP_NO_OPEN_SUPPORT is set in fuse_conn_info.capable, this is treated as success and future calls to open and release will also succeed without being sent to the filesystem process. Valid replies:

unique: 69, error: -38 (Function not implemented), outsize: 16 unique: 70, opcode: SETXATTR (21), nodeid: 2, insize: 116, pid: 2081159 unique: 70, error: -38 (Function not implemented), outsize: