From ac22f3c60fb046c68be6cee4cce1af1cbb63ba41 Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Mon, 4 Oct 2021 07:35:36 +0000
Subject: [PATCH] disable key cache during load if necessary

Former-commit-id: 68dcf66909e2138da4902bdec98985f4fcd737cf
---
 src/rdb.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/rdb.cpp b/src/rdb.cpp
index 44fff3244..ee66ef93e 100644
--- a/src/rdb.cpp
+++ b/src/rdb.cpp
@@ -2683,6 +2683,16 @@ public:
                 ProcessWhileBlocked();
                 resumeExecution();
             }
+
+            if ((getMaxmemoryState(NULL,NULL,NULL,NULL) != C_OK)) {
+                for (int idb = 0; idb < cserver.dbnum; ++idb) {
+                    redisDb *db = g_pserver->db[idb];
+                    if (db->size() > 0 && db->keycacheIsEnabled()) {
+                        serverLog(LL_WARNING, "Key cache %d exceeds maxmemory during load, freeing - performance may be affected increase maxmemory if possible", idb);
+                        db->disableKeyCache();
+                    }
+                }
+            }
         }
     }