cluster_0 cluster_1 A_0_false Listen T_0_18446744073709551615 A_0_false->T_0_18446744073709551615 A_1_true Work T_1_18446744073709551615 A_1_true->T_1_18446744073709551615 T_0_18446744073709551615->A_1_true D_0_18446744073709551615_1 Client → Request D_0_18446744073709551615_1->T_0_18446744073709551615 T_1_18446744073709551615->A_0_false S_1_18446744073709551615_3 Response → Client T_1_18446744073709551615->S_1_18446744073709551615_3 D_1_18446744073709551615_2 Activity → Completed D_1_18446744073709551615_2->T_1_18446744073709551615