Merge pull request smallnest#893 from duke123abc/master

fix stream acceptor

upgrade deps

Merge pull request smallnest#886 from rekyyang/fix/inform-chan

fix: done channel for broadcast, fork and inform

smallnest#883 use the rdma build tag

set backlog

add RDMA

smallnest#880 support RDMA

smallnest#871 define a error represents service implementation error

update libs

remove json-iterator to simpify deps