From e26f4486b07070d795644a16e50429917b86eee0 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Tue, 11 Mar 2014 11:53:09 +0100
Subject: [PATCH] Cluster: update node configEpoch on UPDATE messages.

The UPDATE message contains the configEpoch of the node configuration
advertised in the packet. Update it if needed.
---
 src/cluster.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cluster.c b/src/cluster.c
index c9b39094d..d2490dbae 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -1546,6 +1546,10 @@ int clusterProcessPacket(clusterLink *link) {
         /* If in our current config the node is a slave, set it as a master. */
         if (nodeIsSlave(n)) clusterSetNodeAsMaster(n);
 
+        /* Update the node's configEpoch. */
+        n->configEpoch = reportedConfigEpoch;
+        clusterDoBeforeSleep(CLUSTER_TODO_SAVE_CONFIG|CLUSTER_TODO_FSYNC_CONFIG);
+
         /* Check the bitmap of served slots and udpate our
          * config accordingly. */
         clusterUpdateSlotsConfigWith(n,reportedConfigEpoch,
-- 
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