From 58799718be9e79ea9279f5cbc211ce4d483ba010 Mon Sep 17 00:00:00 2001 From: antirez Date: Tue, 10 Jun 2014 17:20:16 +0200 Subject: [PATCH] Cluster: better comment for clusterSendFailoverAuthIfNeeded() epoch test. --- src/cluster.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/cluster.c b/src/cluster.c index 8fc500f1..7800ec23 100644 --- a/src/cluster.c +++ b/src/cluster.c @@ -2288,7 +2288,10 @@ void clusterSendFailoverAuthIfNeeded(clusterNode *node, clusterMsg *request) { * size + 1 */ if (nodeIsSlave(myself) || myself->numslots == 0) return; - /* Request epoch must be >= our currentEpoch. */ + /* Request epoch must be >= our currentEpoch. + * Note that it is impossible for it to actually be greater since + * our currentEpoch was updated as a side effect of receiving this + * request, if the request epoch was greater. */ if (requestCurrentEpoch < server.cluster->currentEpoch) { redisLog(REDIS_WARNING, "Failover auth denied to %.40s: reqEpoch (%llu) < curEpoch(%llu)",