表 0
a（分区键）
b
send authresult
zookeeper
connreuse
分身表 0
a
c
分身表 1
DB1： table1、table2DBA：tableA
parser layer
cluster tablet
slave
pk
column1
columnX
columnX + 1
1
2
....
max = 100
101
dml
get conn
client connected
R/Wsplit
mysql
object pool
query read
master
authority layer
bussiness
存量数据(row copy) insert ignore .... (select ....) 【min ， max】增量数据(binlog apply) insert - replace update - update where delete - delete where
insert on duplicate key update where（iondup）
parserroutergetconn
backup
replication
osc
db
config
query result read
auth read
log statistics
dump binlog
Cluster
lb
narutoB
TCP connect
分身表1 （a=1， b=1， c=2）
auth send
worker-2
failover
read handshake
mysql protocol
send handshake
merger
worker-n
worker-1
server connected
DB1： table2DBA：tableA_1
conn pool
DB1： table1DBA：tableA_0
query send
authresult read
row copy && binlog apply 串行，binlog优先级高
narutoA
表 1
router layer
no free conn
insert new && affect 0
row copy first
binlog apply first
存量数据
delete
deleted && affect 0
affect 0 && deleted
update
affect 0 && insert new
insert
impossible
增量数据
inserted
replaced
updated
deleted
multi tenant
metrics
mq
proxy
main(watcher)
naruto
query result send
