Refactor cluster in dataservice

Signed-off-by: sunby <bingyi.sun@zilliz.com>
milvus-io · sre-ci-robot · Jul 12, 2021 · Jul 8, 2021 · Jul 12, 2021 · d0c7bef3348fddbed2445e304feee1f247efca33
commit d0c7bef3348fddbed2445e304feee1f247efca33
diff --git a/internal/datacoord/cluster.go b/internal/datacoord/cluster.go
diff --git a/internal/datacoord/cluster_candidate.go b/internal/datacoord/cluster_candidate.go
diff --git a/internal/datacoord/cluster_data_manager.go b/internal/datacoord/cluster_data_manager.go