SERVER-27080 Temporarily disable resync command on replica sets

(cherry picked from commit 7c569051d2de59b5eaa7ade84ca3279d245ef8ea)

1 files changed, 8 insertions, 0 deletions

diff --git a/src/mongo/db/repl/resync.cpp b/src/mongo/db/repl/resync.cpp
index 663a0174443..9fcaff08bb5 100644
--- a/src/mongo/db/repl/resync.cpp
+++ b/src/mongo/db/repl/resync.cpp
@@ -83,6 +83,14 @@ public:
         // Replica set resync.
         ReplicationCoordinator* replCoord = getGlobalReplicationCoordinator();
         if (getGlobalReplicationCoordinator()->getSettings().usingReplSets()) {
+            // Resync is disabled in production on replica sets until it stabilizes (SERVER-27081).
+            if (!Command::testCommandsEnabled) {
+                return appendCommandStatus(
+                    result,
+                    Status(ErrorCodes::OperationFailed,
+                           "Replica sets do not support the resync command"));
+            }
+
             const MemberState memberState = replCoord->getMemberState();
             if (memberState.startup()) {
                 return appendCommandStatus(