From 6a01545744be13ecfa7314cb5fff62f10119a903 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Mon, 10 Feb 2014 17:18:16 +0100
Subject: [PATCH] Cluster: clear the FAIL status for masters without slots.

Masters without slots don't participate to the cluster but just do
redirections, no need to take them in FAIL state if they are back
reachable.
---
 src/cluster.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/cluster.c b/src/cluster.c
index 167468dc..848068af 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -830,9 +830,10 @@ void clearNodeFailureIfNeeded(clusterNode *node) {
 
     /* For slaves we always clear the FAIL flag if we can contact the
      * node again. */
-    if (nodeIsSlave(node)) {
+    if (nodeIsSlave(node) || node->numslots == 0) {
         redisLog(REDIS_NOTICE,
-            "Clear FAIL state for node %.40s: slave is reachable again.",
+            "Clear FAIL state for node %.40s: %s is reachable again.",
+                nodeIsSlave(node) ? "slave" : "master without slots",
                 node->name);
         node->flags &= ~REDIS_NODE_FAIL;
         clusterDoBeforeSleep(CLUSTER_TODO_UPDATE_STATE|CLUSTER_TODO_SAVE_CONFIG);