conf（/usr/local/etc/fuse.conf）中增加配置项“user_allow_other”（该配置项是无值的）。详见libfuse官方文 档：https://github.com/libfuse/libfuse#security-implications # The file /etc/fuse.conf allows for the following parameters: # # user_allow_other allow_root mount options (see below). allow_other This option overrides the security measure restricting file access to the filesystem owner, so that all users Initialize filesystem * * The return value will passed in the private_data field of * fuse_context to all file operations and as a parameter to the * destroy() method. * * Introduced in version

election for the // same prefix, but only one can be the leader at a time. // // If the context is 'context.TODO()/context.Background()', the Campaign // will continue to be blocked for other keys to be deleted deleted, unless server // returns a non-recoverable error (e.g. ErrCompacted). // Otherwise, until the context is not cancelled or timed-out, Campaign will // continue to be blocked until it becomes the leader contxtcancelleader func (e *Election) Campaign(ctx context.Context, val string) error // Proclaimleadervalue func (e *Election) Proclaim(ctx context.Context, val string) error // Observe leaderleader

容易使用，但有一定开销。 ●UCT和UCP两者都有context概念，但是UCT只对一块网卡，而UCP把若干个UCT组合起 来，自动选择最快路径传输。 ●高级特性 –大消息报文的自动分片传输 –Active message, atomic operation, tag match, stream27 典型的RDMA栈28 UCX 编程的一些基本概念 ●Context –收集机器资源（内存，网卡等)，在应用的各个部分共享 ●ServerOptions添加成员 ●当前取舍的：TCP总是可用的， UCX作为选项38 Ucp Context ●只有一个全局对象，使用下列函数获取 ●UCP_Context* get_or_create_ucp_ctx() ●指定了FEATURE_AM, 多线程共享39 命令行参数控制context的属性 ●--brpc_ucp_error_mode缺省是none，是的本地通讯使用shared

operation indicates if this was caused by a delayed write from the page cache. If so, then the context's pid, uid, and gid fields will not be valid, and the *fh* value may not match the *fh* value