SERVER-43310 Always route a sharded cluster's createIndexes call through a replica set's primary node

(cherry picked from commit bbca8dbaf5a32ece935d2a14a8d7f94da41378e3)

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mongo/db/sessions_collection_config_server.cpp b/src/mongo/db/sessions_collection_config_server.cpp
index f89916aace2..f04bef414ce 100644
--- a/src/mongo/db/sessions_collection_config_server.cpp
+++ b/src/mongo/db/sessions_collection_config_server.cpp
@@ -82,7 +82,7 @@ Status SessionsCollectionConfigServer::_generateIndexesIfNeeded(OperationContext
         scatterGatherOnlyVersionIfUnsharded(opCtx,
                                             NamespaceString::kLogicalSessionsNamespace,
                                             SessionsCollection::generateCreateIndexesCmd(),
-                                            ReadPreferenceSetting::get(opCtx),
+                                            ReadPreferenceSetting(ReadPreference::PrimaryOnly),
                                             Shard::RetryPolicy::kNoRetry);
         return Status::OK();
     } catch (const DBException& ex) {
diff --git a/src/mongo/s/commands/cluster_create_indexes_cmd.cpp b/src/mongo/s/commands/cluster_create_indexes_cmd.cpp
index 31e0d36625a..c0fad9aa46d 100644
--- a/src/mongo/s/commands/cluster_create_indexes_cmd.cpp
+++ b/src/mongo/s/commands/cluster_create_indexes_cmd.cpp
@@ -77,7 +77,7 @@ public:
             opCtx,
             nss,
             CommandHelpers::filterCommandRequestForPassthrough(cmdObj),
-            ReadPreferenceSetting::get(opCtx),
+            ReadPreferenceSetting(ReadPreference::PrimaryOnly),
             Shard::RetryPolicy::kNoRetry,
             {ErrorCodes::CannotImplicitlyCreateCollection});