diff --git a/zdb/dev.go b/zdb/dev.go
index 164bc1e2a2da6f4e2f31dd3b2c1d9d9769ba2a58..6f9f2c35fd337e5af6817ead43512072893a5fa1 100644
--- a/zdb/dev.go
+++ b/zdb/dev.go
@@ -1,4 +1,4 @@
-//go:build dev
+//go:build zgo_debug
 
 package zdb
 
diff --git a/zdb/pool.go b/zdb/pool.go
index f8f87c864e914508fe091b440ed01b3581342a19..5b3b65db499d332bfbf33ad7fba5d6520f87d789 100644
--- a/zdb/pool.go
+++ b/zdb/pool.go
@@ -204,7 +204,10 @@ func (d *Pool) sync() *Conn {
 	}
 
 	if d.Balance == BalanceRoundRobin {
-		return d.SrvSync[d.slavesIter.Add(1)%int64(len(d.SrvSync))]
+		conn := d.SrvSync[d.slavesIter.Add(1)%int64(len(d.SrvSync))]
+		logConnStat(conn)
+
+		return conn
 	}
 
 	return d.least(d.SrvSync)
@@ -223,7 +226,10 @@ func (d *Pool) async() *Conn {
 	}
 
 	if d.Balance == BalanceRoundRobin {
-		return d.SrvAsync[d.slavesAsyncIter.Add(1)%int64(len(d.SrvAsync))]
+		conn := d.SrvAsync[d.slavesAsyncIter.Add(1)%int64(len(d.SrvAsync))]
+		logConnStat(conn)
+
+		return conn
 	}
 
 	return d.least(d.SrvAsync)
diff --git a/zdb/prod.go b/zdb/prod.go
index 168479dc2a2f909ad19462db3598b201ecf2d3ba..ec895ff976e0db014376f0ff4aa60114efc8310a 100644
--- a/zdb/prod.go
+++ b/zdb/prod.go
@@ -1,4 +1,4 @@
-//go:build !dev
+//go:build !zgo_debug
 
 package zdb