Definition template class pair { T m0; U m1; public: pair() { } pair(T v0, U v1) : m0(v0), m1(v1) { } T first() const { return m0; } U second() const { return m1; } }; https://godbolt Definition template class pair { T m0; U m1; public: pair() { } pair(T v0, U v1) : m0(v0), m1(v1) { } T first() const { return m0; } U second() const { return m1; } }; https://godbolt Definition template class pair { T m0; U m1; public: pair() { } pair(T v0, U v1) : m0(v0), m1(v1) { } T first() const { return m0; } U second() const { return m1; } }; https://godbolt

pointer to a[0], v0 is j, v1 is i, t0 is x 0: 24860004 addiu a2,a0,4 # a2 is pointer to a[i] 4: 24030001 li v1,1 # i = 1 Outer Loop: 8: 0065102b sltu v0,v1,a1 # set on i < n c: 14400003 bnez v0,1c # if iv0,v1 # j = i Inner Loop: 24: 8ce9fffc lw t1,-4(a3) # t1 = a[j-1] 28: 00000000 nop # load delay slot unfilled 34: 00000000 nop # branch delay slot unfilled 38: 2442ffff addiu v0,v0,-1 # j-- 3c: ace90000 sw t1,0(a3) # a[j] = a[j-1] 40: 1440fff8 bnez v0,24 # if j != 0, jump to Inner Loop 44: 24e7fffc addiu a3,a3,-4

peer cluster. Normal replication - problem #1 Put K0, V0, t1 Put K0, V0, t2 t1 t2 Put K0, V0, t5 t4 t3 Region Move Put K0, V0, t1 Put K0, V0, t5 t6 t7 t8 Sequence of mutations in source cluster pub/sub, message system etc. Put K0, V0, t2 Normal replication - problem #2 Put K0, V0, t1 Delete K0, t < t4 t1 t2 Put K0, V0, t2 t4 t3 Region Move Put K0, V0, t1 t6 t7 t9 Mutation sequence in but the peer cluster has a cell (Put K0, V0, t2) in the end. ➢ Data inconsistent happen between source cluster and peer clusters. Delete K0, t < t4 Put K0, V0, t2 t8 Major Compact Redundant cell

configuration with the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: configuration to the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: baetyl-remote-mqtt service The application configuration in var/db/baetyl/application.yml are as follows: version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub:latest replica: 1 ports:

configuration with the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: - 1883:1883 configuration to the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: - 1883:1883 baetyl-remote-mqtt service The application configuration in var/db/baetyl/application.yml are as follows: version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub:latest replica: 1 ports: - 1883:1883

configuration with the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: - 1883:1883 configuration to the following configuration: # /usr/local/var/db/baetyl/application.yml version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub replica: 1 ports: - 1883:1883 program is: var/db/baetyl/application.yml. The configuration of Baetyl Master are as follows: version: v0 services: - name: localhub image: hub.baidubce.com/baetyl/baetyl-hub:latest replica: 1 (continues