From 9bd0e097aa19b697757cdb73dd447e2c6f4960c6 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Tue, 4 Sep 2012 16:06:53 +0200
Subject: [PATCH] Sentinel: reply -IDONTKNOW to get-master-addr-by-name on lack
 of info.

If we don't have any clue about a master since it never replied to INFO
so far, reply with an -IDONTKNOW error to SENTINEL
get-master-addr-by-name requests.
---
 src/sentinel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/sentinel.c b/src/sentinel.c
index 7fdc45e3..70b6aa27 100644
--- a/src/sentinel.c
+++ b/src/sentinel.c
@@ -2005,6 +2005,8 @@ void sentinelCommand(redisClient *c) {
         ri = sentinelGetMasterByName(c->argv[2]->ptr);
         if (ri == NULL) {
             addReply(c,shared.nullmultibulk);
+        } else if (ri->info_refresh == 0) {
+            addReplySds(c,sdsnew("-IDONTKNOW I have not enough information to reply. Please ask another Sentinel.\r\n"));
         } else {
             sentinelAddr *addr = ri->addr;
 
-- 
2.45.2