Revert "SERVER-44343 Make 'reIndex' a standalone-only command"

This reverts commit 2ad12521309aeccc6f712f4ccb532f113255d186.

1 files changed, 2 insertions, 14 deletions

diff --git a/src/mongo/db/commands/drop_indexes.cpp b/src/mongo/db/commands/drop_indexes.cpp
index 38266a3cf48..1b48d355e5c 100644
--- a/src/mongo/db/commands/drop_indexes.cpp
+++ b/src/mongo/db/commands/drop_indexes.cpp
@@ -100,16 +100,13 @@ public:
 class CmdReIndex : public ErrmsgCommandDeprecated {
 public:
     AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
-        // Even though reIndex is a standalone-only command, this will return that the command is
-        // allowed on secondaries so that it will fail with a more useful error message to the user
-        // rather than with a NotMaster error.
-        return AllowedOnSecondary::kAlways;
+        return AllowedOnSecondary::kAlways;  // can reindex on a secondary
     }
     virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
         return false;
     }
     std::string help() const override {
-        return "re-index a collection (can only be run on a standalone mongod)";
+        return "re-index a collection";
     }
     virtual void addRequiredPrivileges(const std::string& dbname,
                                        const BSONObj& cmdObj,
@@ -131,15 +128,6 @@ public:
 
         LOGV2(20457, "CMD: reIndex {toReIndexNss}", "toReIndexNss"_attr = toReIndexNss);
 
-        if (repl::ReplicationCoordinator::get(opCtx)->getReplicationMode() !=
-            repl::ReplicationCoordinator::modeNone) {
-            uasserted(
-                ErrorCodes::IllegalOperation,
-                str::stream()
-                    << "reIndex is only allowed on a standalone mongod instance. Cannot reIndex '"
-                    << toReIndexNss << "' while replication is active");
-        }
-
         AutoGetCollection autoColl(opCtx, toReIndexNss, MODE_X);
         Collection* collection = autoColl.getCollection();
         if (!collection) {