From: @shaoxiangdong
Reviewed-by: @wuxuejian,@c_34
Signed-off-by: @c_34

From: @TFbunny
Reviewed-by: @tom__chen,@robingrosman
Signed-off-by: @robingrosman

From: @tom__chen
Reviewed-by: @robingrosman,@john_tzanakakis
Signed-off-by: @robingrosman

From: @john_tzanakakis
Reviewed-by: @mikef,@robingrosman
Signed-off-by: @robingrosman

From: @tina_mengting_zhang
Reviewed-by: @john_tzanakakis,@robingrosman
Signed-off-by: @john_tzanakakis

From: @zpac
Reviewed-by: 
Signed-off-by:

From: @mhmotallebi
Reviewed-by: 
Signed-off-by:

From: @parastooashtari
Reviewed-by: @john_tzanakakis,@tom__chen
Signed-off-by: @john_tzanakakis

From: @liangzelang
Reviewed-by: @jjfeing,@kisnwang
Signed-off-by: @kisnwang

From: @YeFeng_24
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @hangangqiang

From: @lyvette
Reviewed-by: @jpc_chenjianping,@jpc_chenjianping,@zhanghaibo5
Signed-off-by: @jpc_chenjianping,@jpc_chenjianping

From: @ding_fei_fei
Reviewed-by: @liucunwei,@xsmq,@liucunwei
Signed-off-by: @liucunwei

From: @zhanghuiyao
Reviewed-by: @oacjiewen,@c_34
Signed-off-by: @c_34

From: @looop5
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @zhujingxuan
Reviewed-by: @wangchengyuan,@hangangqiang
Signed-off-by: @wangchengyuan

From: @dinglinhe123
Reviewed-by: @wuxuejian,@liangchenghui,@ljl0711
Signed-off-by: @liangchenghui

From: @changzherui
Reviewed-by: @kingxian,@zh_qh
Signed-off-by: @kingxian

From: @ZhengQihao3f3f3f
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

Add class Message, AddrStorage

Add Kernel folder

Add consistent hash ring

Add updater for server.

Add iteration timer

Add executor for server

From: @yangruoqi713
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @zhanghaibo5

From: @jianghui58
Reviewed-by: @jpc_chenjianping,@hangangqiang
Signed-off-by: @jpc_chenjianping

From: @xuguoyang5566
Reviewed-by: @guoqi1024,@wuxuejian
Signed-off-by: @guoqi1024

From: @irmo
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @gong_zi_yan
Reviewed-by: @jjfeing,@stsuteng
Signed-off-by: @stsuteng

From: @irmo
Reviewed-by: @kisnwang,@jjfeing
Signed-off-by: @jjfeing

From: @zoloft
Reviewed-by: @wangchengyuan,@zhanghaibo5
Signed-off-by: @wangchengyuan

From: @dinglinhe123
Reviewed-by: @wuxuejian,@ljl0711
Signed-off-by: @wuxuejian

From: @TFbunny
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui,@wuxuejian

From: @erpim
Reviewed-by: 
Signed-off-by:

From: @Margaret_wangrui
Reviewed-by: @hwhewei,@zh_qh
Signed-off-by: @zh_qh

From: @Margaret_wangrui
Reviewed-by: @hwhewei,@zh_qh
Signed-off-by: @zh_qh

From: @pan-fei
Reviewed-by: @gemini524,@wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

fix compiling

From: @zh_qh
Reviewed-by: @ginfung,@hwhewei
Signed-off-by: @hwhewei

From: @dayschan
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @zoloft
Reviewed-by: 
Signed-off-by:

From: @yeyunpeng2020
Reviewed-by: @ddwsky,@jpc_chenjianping
Signed-off-by: @ddwsky