From: Pieter Noordhuis <pcnoordhuis@gmail.com>
Date: Wed, 17 Aug 2011 16:15:06 +0000 (+0200)
Subject: Fix AOF race that may duplicate commands
X-Git-Url: https://git.saurik.com/redis.git/commitdiff_plain/5f54a5e615efca2c15a8990c336986d9c9497453?ds=inline

Fix AOF race that may duplicate commands
---

diff --git a/src/aof.c b/src/aof.c
index 7b15acb8..42f153be 100644
--- a/src/aof.c
+++ b/src/aof.c
@@ -766,6 +766,11 @@ void backgroundRewriteDoneHandler(int exitcode, int bysignal) {
             server.appendseldb = -1; /* Make sure SELECT is re-issued */
             aofUpdateCurrentSize();
             server.auto_aofrewrite_base_size = server.appendonly_current_size;
+
+            /* Clear regular AOF buffer since its contents was just written to
+             * the new AOF from the background rewrite buffer. */
+            sdsfree(server.aofbuf);
+            server.aofbuf = sdsempty();
         }
 
         redisLog(REDIS_NOTICE, "Background AOF rewrite successful");