under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2 under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2 under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2

ontainer 实现了btree map和btree set，(Apache)。 google， https://code.google.com/archive/p/cpp-btree/， btree_map , btree_set, btree_multimap, and btree_multiset ，（ ） Apache B+tree 内部结点不保存数据，只有叶子结点保存数据。

1. A CopySet, as the basic unit of a consistent replication group, contains Consensus Module and Log Module. 2. The State Machine corresponds to the chunk in the CurveBS, and it applies the operations the CurveBS Client has been optimized to decouple the application from libcurve and add a NEBD module to join the two. l Nebdclient: Forward the requests from QEMU and curve-NBD to the specified processing flow CopysetNode is essentially a wrapper around the RAFT algorithm. The Copyset module encapsulates the RAFT Node of BRaft and implements the user state machine of BRaft. Take a write

parameter. If the number of pending * background requests exceeds this number, the FUSE kernel module will * mark the filesystem as "congested". This instructs the kernel to * expect that queued