diff --git a/pkg/cluster/spec/ts_meta.go b/pkg/cluster/spec/ts_meta.go
index e65dbe8..df0976e 100644
--- a/pkg/cluster/spec/ts_meta.go
+++ b/pkg/cluster/spec/ts_meta.go
@@ -189,13 +189,10 @@ func (i *TSMetaInstance) SetDefaultConfig(instanceConf map[string]any) map[strin
 		instanceConf = make(map[string]any, 20)
 	}
 	var metaPeerAddrs []string
-	var tsMetaSpec *TSMetaSpec
 	for _, metaSpec := range i.topo.TSMetaServers {
-		if i.Host == metaSpec.Host && i.Port == metaSpec.ClientPort {
-			tsMetaSpec = metaSpec
-		}
 		metaPeerAddrs = append(metaPeerAddrs, utils.JoinHostPort(metaSpec.Host, metaSpec.PeerPort))
 	}
+	var tsMetaSpec = i.InstanceSpec.(*TSMetaSpec)
 	instanceConf["common.meta-join"] = metaPeerAddrs
 	instanceConf["meta.bind-address"] = utils.JoinHostPort(i.Host, tsMetaSpec.RaftPort)
 	instanceConf["meta.http-bind-address"] = utils.JoinHostPort(i.Host, tsMetaSpec.ClientPort)
diff --git a/pkg/cluster/spec/ts_sql.go b/pkg/cluster/spec/ts_sql.go
index 379c9a8..83abd12 100644
--- a/pkg/cluster/spec/ts_sql.go
+++ b/pkg/cluster/spec/ts_sql.go
@@ -189,12 +189,7 @@ func (i *TSSqlInstance) SetDefaultConfig(instanceConf map[string]any) map[string
 	}
 	instanceConf["common.meta-join"] = metaPeerAddrs
 
-	var tsSqlSpec *TSSqlSpec
-	for _, sqlSpec := range i.topo.TSSqlServers {
-		if i.Host == sqlSpec.Host {
-			tsSqlSpec = sqlSpec
-		}
-	}
+	var tsSqlSpec = i.InstanceSpec.(*TSSqlSpec)
 	instanceConf["http.bind-address"] = utils.JoinHostPort(i.Host, tsSqlSpec.Port)
 	instanceConf["http.flight-enabled"] = false // enabled at ts-data
 	instanceConf["logging.path"] = tsSqlSpec.LogDir
diff --git a/pkg/cluster/spec/ts_store.go b/pkg/cluster/spec/ts_store.go
index 0aabd10..3ad3afe 100644
--- a/pkg/cluster/spec/ts_store.go
+++ b/pkg/cluster/spec/ts_store.go
@@ -196,17 +196,11 @@ func (i *TSStoreInstance) SetDefaultConfig(instanceConf map[string]any) map[stri
 	}
 	instanceConf["common.meta-join"] = metaPeerAddrs
 
-	var tsStoreSpec *TSStoreSpec
-	for _, storeSpec := range i.topo.TSStoreServers {
-		if i.Host == storeSpec.Host && i.Port == storeSpec.SelectPort {
-			tsStoreSpec = storeSpec
-		}
-	}
+	var tsStoreSpec = i.InstanceSpec.(*TSStoreSpec)
 	instanceConf["data.store-ingest-addr"] = utils.JoinHostPort(i.Host, tsStoreSpec.IngestPort)
 	instanceConf["data.store-select-addr"] = utils.JoinHostPort(i.Host, tsStoreSpec.SelectPort)
 	instanceConf["data.store-data-dir"] = tsStoreSpec.DataDir
 	instanceConf["data.store-wal-dir"] = tsStoreSpec.DataDir
-	//instanceConf["data.store-meta-dir"] = tsStoreSpec.DataDir
 	instanceConf["logging.path"] = tsStoreSpec.LogDir
 
 	instanceConf["gossip.bind-address"] = i.Host