From 4f66bcbb22b841ce1f00dd76852c1216aa666d91 Mon Sep 17 00:00:00 2001
From: XuanYang-cn <xuan.yang@zilliz.com>
Date: Wed, 8 Jun 2022 17:24:07 +0800
Subject: [PATCH] Fix DataNode processes event out of order (#17440)

The probability is low so very unlikly to reproduce

See also: #15966

Signed-off-by: yangxuan <xuan.yang@zilliz.com>
---
 internal/datanode/data_node.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/internal/datanode/data_node.go b/internal/datanode/data_node.go
index fdc4f188e0..d1a9b59b66 100644
--- a/internal/datanode/data_node.go
+++ b/internal/datanode/data_node.go
@@ -259,7 +259,8 @@ func (node *DataNode) StartWatchChannels(ctx context.Context) {
 				return
 			}
 			for _, evt := range event.Events {
-				go node.handleChannelEvt(evt)
+				// We need to stay in order until events enqueued
+				node.handleChannelEvt(evt)
 			}
 		}
 	}