SERVER-20889 Add server parameter for disabling sharding state recovery

1 files changed, 10 insertions, 0 deletions

diff --git a/src/mongo/db/s/sharding_state_recovery.cpp b/src/mongo/db/s/sharding_state_recovery.cpp
index 0f30b4d9d27..de59a1310fc 100644
--- a/src/mongo/db/s/sharding_state_recovery.cpp
+++ b/src/mongo/db/s/sharding_state_recovery.cpp
@@ -46,6 +46,7 @@
 #include "mongo/db/repl/optime.h"
 #include "mongo/db/repl/repl_client_info.h"
 #include "mongo/db/s/sharding_state.h"
+#include "mongo/db/server_parameters.h"
 #include "mongo/db/write_concern.h"
 #include "mongo/db/write_concern_options.h"
 #include "mongo/s/client/shard_registry.h"
@@ -66,6 +67,8 @@ const WriteConcernOptions kMajorityWriteConcern(WriteConcernOptions::kMajority,
                                                 WriteConcernOptions::NONE,
                                                 kWriteTimeout);
 
+MONGO_EXPORT_STARTUP_SERVER_PARAMETER(recoverShardingState, bool, true);
+
 /**
  * Encapsulates the parsing and construction of the config server min opTime recovery document.
  */
@@ -237,6 +240,13 @@ void ShardingStateRecovery::endMetadataOp(OperationContext* txn) {
 }
 
 Status ShardingStateRecovery::recover(OperationContext* txn) {
+    if (!recoverShardingState) {
+        warning()
+            << "Not checking for ShardingState recovery document because the recoverShardingState "
+               "server parameter is set to false";
+        return Status::OK();
+    }
+
     BSONObj recoveryDocBSON;
 
     try {