From 57bd8feb8d81064cd53a7f124e7509134fb7459b Mon Sep 17 00:00:00 2001
From: "zhaozhao.zz" <zhaozhao.zz@alibaba-inc.com>
Date: Sat, 18 Nov 2017 01:21:39 +0800
Subject: [PATCH] rehash: handle one db until finished

---
 src/server.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/server.c b/src/server.c
index 61291fde..c9972115 100644
--- a/src/server.c
+++ b/src/server.c
@@ -908,12 +908,15 @@ void databasesCron(void) {
         /* Rehash */
         if (server.activerehashing) {
             for (j = 0; j < dbs_per_call; j++) {
-                int work_done = incrementallyRehash(rehash_db % server.dbnum);
-                rehash_db++;
+                int work_done = incrementallyRehash(rehash_db);
                 if (work_done) {
                     /* If the function did some work, stop here, we'll do
                      * more at the next cron loop. */
                     break;
+                } else {
+                    /* If this db didn't need rehash, we'll try the next one. */
+                    rehash_db++;
+                    rehash_db %= server.dbnum;
                 }
             }
         }