From 5244d6e54ec08666f953124739a498d0537a2bf9 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Mon, 14 Nov 2011 10:15:13 +0100
Subject: [PATCH] rewrite INCRBYFLOAT as SETs for AOF/replication
---
src/t_string.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/t_string.c b/src/t_string.c
index 1f0b1fbc..2bd1646e 100644
--- a/src/t_string.c
+++ b/src/t_string.c
@@ -385,7 +385,7 @@ void decrbyCommand(redisClient *c) {
void incrbyfloatCommand(redisClient *c) {
long double incr, value;
- robj *o, *new;
+ robj *o, *new, *aux;
o = lookupKeyWrite(c->db,c->argv[1]);
if (o != NULL && checkType(c,o,REDIS_STRING)) return;
@@ -406,6 +406,14 @@ void incrbyfloatCommand(redisClient *c) {
signalModifiedKey(c->db,c->argv[1]);
server.dirty++;
addReplyBulk(c,new);
+
+ /* Always replicate INCRBYFLOAT as a SET command with the final value
+ * in order to make sure that differences in float pricision or formatting
+ * will not create differences in replicas or after an AOF restart. */
+ aux = createStringObject("SET",3);
+ rewriteClientCommandArgument(c,0,aux);
+ decrRefCount(aux);
+ rewriteClientCommandArgument(c,2,new);
}
void appendCommand(redisClient *c) {
--
2.47.2