R e ad
K V S to r e
Upd a te
SPUs
Metad a ta
Disp a tcher
Upd a te
K V S to r e
K V S to r e
R e ad
SPU Upd a te
Action
Disp a tcher
T opic
C ont r oller
P a r tition
C ont r oller
SPU
C ont r oller
SPU