From 040c64f0d533c3a3f951a90f5316b0de9cb1ce14 Mon Sep 17 00:00:00 2001
From: EquentR <62492107+EquentR@users.noreply.github.com>
Date: Mon, 1 Jul 2024 19:12:52 +0800
Subject: [PATCH] fix: switchdb blocking after closing destination reply (#837)

https://github.com/tair-opensource/RedisShake/issues/836
---
 internal/writer/redis_standalone_writer.go | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/internal/writer/redis_standalone_writer.go b/internal/writer/redis_standalone_writer.go
index 392a8ff3..13049adc 100644
--- a/internal/writer/redis_standalone_writer.go
+++ b/internal/writer/redis_standalone_writer.go
@@ -92,9 +92,11 @@ func (w *redisStandaloneWriter) switchDbTo(newDbId int) {
 	log.Debugf("[%s] switch db to [%d]", w.stat.Name, newDbId)
 	w.client.Send("select", strconv.Itoa(newDbId))
 	w.DbId = newDbId
-	w.chWaitReply <- &entry.Entry{
-		Argv:    []string{"select", strconv.Itoa(newDbId)},
-		CmdName: "select",
+	if !w.offReply {
+		w.chWaitReply <- &entry.Entry{
+			Argv:    []string{"select", strconv.Itoa(newDbId)},
+			CmdName: "select",
+		}
 	}
 }