From 35b7296ff4ec8170a8a076bbf0f462c178b3df5f Mon Sep 17 00:00:00 2001
From: "zhaozhao.zz" <zhaozhao.zz@alibaba-inc.com>
Date: Tue, 9 Oct 2018 20:34:11 +0800
Subject: [PATCH] Avoid recreate write handler for protected client.

---
 src/networking.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/networking.c b/src/networking.c
index 98a4f24e..e255e64d 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -1072,6 +1072,10 @@ int handleClientsWithPendingWrites(void) {
         c->flags &= ~CLIENT_PENDING_WRITE;
         listDelNode(server.clients_pending_write,ln);
 
+        /* If a client is protected, don't do anything,
+         * that may trigger write error or recreate handler. */
+        if (c->flags & CLIENT_PROTECTED) continue;
+
         /* Try to write buffers to the client socket. */
         if (writeToClient(c->fd,c,0) == C_ERR) continue;