From 754138a94c3dc70d09a504089ae7526c39c44b3b Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Mon, 30 Mar 2020 00:51:40 -0400
Subject: [PATCH] Allow active replicas to connect to each other when
 replica-serve-stale-data is set

Former-commit-id: f2ca2aa1f70956a0309d6a2441417a80383fd717
---
 src/server.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server.cpp b/src/server.cpp
index 30d7eb9de..88f0b539b 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -3682,7 +3682,8 @@ int processCommand(client *c, int callFlags) {
      * link with master. */
     if (FBrokenLinkToMaster() &&
         g_pserver->repl_serve_stale_data == 0 &&
-        !(c->cmd->flags & CMD_STALE))
+        !(c->cmd->flags & CMD_STALE)
+        && !(g_pserver->fActiveReplica && c->cmd->proc == syncCommand))
     {
         flagTransaction(c);
         addReply(c, shared.masterdownerr);